[web2py] .json in url does not like "contruções"

[António Ramos]

hello, i have a controller function

if i call it just by http://app.xx.pt/default/myfunc

if shows the resulting array from myfunc

but if i call it like
http://app.xx.pt/default/myfunc.json
i get the error

utf8' codec can't decode byte 0xc3

I think its because the text  "contruções" in the resulting  array


How can i tweek it to not give the error?


thank you

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Re: [web2py] .json in url does not like "contruções"

[Manuele Pesenti]

Il 18/03/14 11:07, António Ramos ha scritto:
> hello, i have a controller function
>
> if i call it just by http://app.xx.pt/default/myfunc
>
> if shows the resulting array from myfunc
>
> but if i call it like 
> http://app.xx.pt/default/myfunc.json
> i get the error
> utf8' codec can't decode byte 0xc3 
> I think its because the text  "contruções" in the resulting  array
>
>
>
> How can i tweek it to not give the error?
Hi António,
consider that json string it's a unicode string.
Can this help you?

M.
>
> thank you
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[web2py] Re: What's the correct implementation of cache.action?

[Anthony]

>
>  - How can I verify when the html was actually retrieved from the cache? I 
> tried coding a "print request.now" in the view, but that sentence is 
> executed everytime I hit the site's homepage, so I deduce that the code 
> that generates the html is executed everytime I hit the home instead of 
> retrieving from the cache. However, I'm not sure if that "print 
> request.now" is a correct indicator.
>

The cache decorator just caches the output of the controller function, not 
the final HTML output. If you want to do the latter, then you should have 
the function itself directly call response.render() and return that (this 
technique is mentioned in the book).
 

>  - Is it possible to use server-side cache of the view but **not** browser 
> side? I'm specially interested in caching the view server-side, but not 
> browser-side.
>

According to the documentation, this should be possible, but looking at the 
code, I'm not sure it actually is. Anyway, as long as you're caching on the 
server, why not also let the browser cache the page?
 

>  - Users can login in my site, but homepage isn't different for logged in 
> users, only thing that's different is topbar showing the name of logged in 
> user. Is it still possible to use @cache.action?
>

Yes, but you'd want to set session=True to make sure each user gets a 
different page. In that case, though, you probably would not want to do 
server side caching, as you will be continually adding to the cache with no 
benefit over client-only caching. Also, keep in mind that values are not 
automatically deleted from the cache (even after they expire), so you don't 
want to accumulate an potentially unlimited number of cache items (you'll 
at least need to do some periodic cleanup).

Anthony

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[web2py] Re: .json in url does not like "contruções"

[Leonel Câmara]

Olá António,

Is your controller .py file saved in utf-8 (make sure the text editor is 
doing it, use "the save with encoding" option if you have it) and has this 
as the first line?

# -*- coding: utf-8 -*-

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[web2py] Tornado DISCONNECT from mygroup after 1 min

[António Ramos]

Hello, i moved my app from windows to linux

my websockets only stays up for a minute or less.

What could be the problem?

In windows it was working perfectly.

I´m using port  inside a virtualenv, because i´m no root at
action.ioand had to use virtualenv to install tornado.
(In case this could be important)


Help needed

Thank you

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Re: [web2py] Re: .json in url does not like "contruções"

[António Ramos]

yes i have it in my controller.py file

# -*- coding: utf-8 -*-



2014-03-18 14:48 GMT+00:00 Leonel Câmara :

> Olá António,
>
> Is your controller .py file saved in utf-8 (make sure the text editor is
> doing it, use "the save with encoding" option if you have it) and has this
> as the first line?
>
> # -*- coding: utf-8 -*-
>
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[web2py] Re: What's the correct implementation of cache.action?

[Lisandro]

El martes, 18 de marzo de 2014 09:30:34 UTC-3, Anthony escribió:
>
>  - How can I verify when the html was actually retrieved from the cache? I 
>> tried coding a "print request.now" in the view, but that sentence is 
>> executed everytime I hit the site's homepage, so I deduce that the code 
>> that generates the html is executed everytime I hit the home instead of 
>> retrieving from the cache. However, I'm not sure if that "print 
>> request.now" is a correct indicator.
>>
>
> The cache decorator just caches the output of the controller function, not 
> the final HTML output. If you want to do the latter, then you should have 
> the function itself directly call response.render() and return that (this 
> technique is mentioned in the book).
>

Oh I see, I guess I missed that part, my bad. Now I'm getting the expected 
behaviour. 

>  
>
>>  - Is it possible to use server-side cache of the view but **not** 
>> browser side? I'm specially interested in caching the view server-side, but 
>> not browser-side.
>>
>
> According to the documentation, this should be possible, but looking at 
> the code, I'm not sure it actually is. Anyway, as long as you're caching on 
> the server, why not also let the browser cache the page?
>

True. I just had the doubt because I also read in the docs that it could be 
possible, but not shure how. However I'm not interested in browser-side 
cache for now.

>  
>
>>  - Users can login in my site, but homepage isn't different for logged in 
>> users, only thing that's different is topbar showing the name of logged in 
>> user. Is it still possible to use @cache.action?
>>
>
> Yes, but you'd want to set session=True to make sure each user gets a 
> different page. In that case, though, you probably would not want to do 
> server side caching, as you will be continually adding to the cache with no 
> benefit over client-only caching. Also, keep in mind that values are not 
> automatically deleted from the cache (even after they expire), so you don't 
> want to accumulate an potentially unlimited number of cache items (you'll 
> at least need to do some periodic cleanup).
>

Yes, actually I was thinking setting session=True for every user, but using 
cache_model=cache.ram just when the user isn't logged in. 

After your tips and a few tests, now I understand better. Now my goal is 
this: I want to cache server-side the rendered view **excluding the 
extended layout**, that is, I have a layout.html and index.html extends the 
layout. The layout has things that I don't want to be cached (for example, 
user's navbar).  I think in this case @cache.action is not going to work 
(because it will cache the complete rendered view).

However, I managed to achieve what I want, doing this:

 - A "layout.html" containing user's navbar and site's header and footer. 
 - An "index.html" that extends layout.html
 - An "content.html" that **doesn't** extends layout.html
 - An index() controller function that **doesn't** use @cache.action 
decorator. Instead, the function uses response.render() specifying 
"content.html" as the view file to be rendered, and stores the results of 
the rendering in the cache. That result is passed as a variable to 
"index.html" view.

In this way, I'm getting the behaviour I want, which is: caching just a 
portion of the site's homepage. If you see that something is "wrong" with 
this approach, please let me know. Until now tests have been ok. Thanks for 
your help!


> Anthony
>
>

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[web2py] redis pub/sub instead of tornado ?!

[António Ramos]

hello , can i use redis pub/sub functionality  instead of tornado ?

any examples?

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[web2py] Re: What's the correct implementation of cache.action?

[Anthony]

>
>  - A "layout.html" containing user's navbar and site's header and footer. 
>  - An "index.html" that extends layout.html
>  - An "content.html" that **doesn't** extends layout.html
>  - An index() controller function that **doesn't** use @cache.action 
> decorator. Instead, the function uses response.render() specifying 
> "content.html" as the view file to be rendered, and stores the results of 
> the rendering in the cache. That result is passed as a variable to 
> "index.html" view.
>

Seems like a reasonable approach. If you don't want to cache within the 
index function, you could instead use the @cache() decorator (rather than 
@cache.action).

Feel free to open a Google Code issue about not being able to turn off 
client side caching with @cache.action. That should be allowed, and this is 
a good use case for it (i.e., the need to cache only the output of the 
function, but not the entire rendered HTML due to user-specific data on 
each page).

Anthony
 

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[web2py] Re: What's the correct implementation of cache.action?

[Lisandro]

El martes, 18 de marzo de 2014 12:16:45 UTC-3, Anthony escribió:
>
>  - A "layout.html" containing user's navbar and site's header and footer. 
>>  - An "index.html" that extends layout.html
>>  - An "content.html" that **doesn't** extends layout.html
>>  - An index() controller function that **doesn't** use @cache.action 
>> decorator. Instead, the function uses response.render() specifying 
>> "content.html" as the view file to be rendered, and stores the results of 
>> the rendering in the cache. That result is passed as a variable to 
>> "index.html" view.
>>
>
> Seems like a reasonable approach. If you don't want to cache within the 
> index function, you could instead use the @cache() decorator (rather than 
> @cache.action).
>

I will give it a try. I haven't tried that because the book suggested using 
@cache.action, but I will give it a try.
 

>
> Feel free to open a Google Code issue about not being able to turn off 
> client side caching with @cache.action. That should be allowed, and this is 
> a good use case for it (i.e., the need to cache only the output of the 
> function, but not the entire rendered HTML due to user-specific data on 
> each page).
>

I'll do it today, thanks again for the help! Regards, Lisandro.


> Anthony
>  
>

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[web2py] Re: Web2py on Koding.com

[wuelfhis asuaje]

Thas the code i'm using, is the main view /default/index.html

{{extend 'layout.html'}}


   
{{=A(IMG(_src=URL('static/images','config2.jpeg'), 
_alt="Empresa, usuarios y parametros",  _width="80", _height="80", 
_class="none"),   
   callback=URL('default','config'), target="modulos" ) }}

Configurar empresa

...
...

Some more divs with same structure

Watching page code from right button see source code:

Bad code:

 http://vm-0.wasuaje.koding.kd.io/PyRest/default/config>" 
id="f56a3901-d32b-4eaa-a089-21de71450aa8">http://vm-0.wasuaje.koding.kd.io/PyRest/static/images/config2.jpeg>"
 width="80" />   Configurar 
empresa

good Code (from my machine)

 http://localhost:8000/PyRest/#null>" 
onclick="ajax('/PyRest/default/config',[],'modulos');return false">http://localhost:8000/PyRest/static/images/config2.jpeg>" 
width="80" />   Configurar 
empresa


Seems like web2py is not interpreting or updating dom of the page or something 
like that








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[web2py] Re: What's the correct implementation of cache.action?

[Anthony]

>
> Seems like a reasonable approach. If you don't want to cache within the 
>> index function, you could instead use the @cache() decorator (rather than 
>> @cache.action).
>>
>
> I will give it a try. I haven't tried that because the book suggested 
> using @cache.action, but I will give it a try.
>

Well, you're already using cache() within the index function itself -- it 
will be no different to use the decorator instead. The main issue is to 
make sure the key is unique to the specific content being cached (e.g., if 
there is a query string in the URL that affects the returned response, make 
sure that is part of the key).

Anthony

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[web2py] Re: Web2py on Koding.com

[wuelfhis asuaje]

Update

I've created this app with web2py 2.3.2 But i'd like to use latest version 
2.9.5

Thanks

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[web2py] Re: Web2py on Koding.com

[wuelfhis asuaje]

Ok people

The problem is the difference on versions from 2.3.2 to 2.9.5, now

Can somebody tell me how to fix it ! How to make it run ?

Thanks

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[web2py] Change 'working...' message in ajax links

[Ian W. Scott]

I want to change the default 'working...' message presented in an ajax link 
while it is waiting for the callback to return. I couldn't find anything 
about this in the web2py manual, but looking in web2py.js it looks like the 
message can be overridden by setting the data-disable-with value on the 
link, e.g.:

myargs = {'data-disable-with': IMG(_src='coolspinner.gif')}
A('mylink', _href=URL('some', 'view'), **myargs)

(I believe the indirect insertion of the data-disable-with property is 
necessary because of the hyphens in the property name.)

But how would I change the default for all of my ajax links? Obviously I 
can just change line 474 of web2py.js, but that's a bit fragile because 
when I update my app with new versions of that file there's the risk of 
regression. So is there any way of setting this default value, say in 
db.py, for the whole app? If not, is this something we could add to the 
api? I suspect it's something that many will want to tweak to fit their own 
themes.

On a similar note, is there a way to set a custom default value for the 
'content' property of the LOAD helper? (Again, I'd like to set the new 
default in one place for the whole app.) I suppose I could subclass the 
LOAD helper, but that seems a bit heavy-handed. 

Thanks,

Ian

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Re: [web2py] Re: SmartGrid Add make a Fld Readonly

[Dan Kozlowski]

I found the problem after hours of testing different things. It was my 
mistake. I was using *writeable* when it should have been *writable*. 
Works perfect now.


Thanks for your help


On 03/17/2014 06:39 PM, 黄祥 wrote:

had you already try to simplify or minimalist your app first?
e.g.
def clients():
write_in_form_new = 'new' in request.args
if write_in_form_new:
db.clients.add_date.writeable = False
grid = SQLFORM.smartgrid(db.clients)
return locals()

best regards,
stifan
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[web2py] Re: Bootstrap3 package - help to test

[Ian W. Scott]

Although I'm replying late, I just want to say a huge "thanks" for tackling 
this. It's something I've wanted to get to for a few months, and it's great 
to see that I don't have to start from scratch. If there was an initial 
lack of response I suspect it's just that many people like me happened to 
miss the thread.

Kudos.

On Wednesday, January 15, 2014 6:10:25 PM UTC-5, LightDot wrote:
>
> Hm. I expected a flurry of responses by now. I haven't been able to work 
> on this since Christmas, but... come on, anyone?? :) I would think a 
> possibility of Bootstrap 3 and Zorb Foundation 5 welcome apps would draw 
> crowds...
>
> Anyway, layout.html:
> - web2py.css needs minor adjustments as there are no .main, .footer, 
> .footer-content and .header in layout anymore (btw, .push is also obsolete, 
> it disappeared almost 2 years ago, when skeleton.css was replaced by 
> bootstrap)
> - I did not test this part, but changes in regards to modernizr.custom.js 
> and respond.js seem appropriate. I would suggest a free CDN instead of 
> maxcdn.com, though. How about 
> cdnjs.cloudflare.com/ajax/libs/respond.js/1.4.2/respond.js ? We could 
> suggest the same for Modernizr (
> cdnjs.cloudflare.com/ajax/libs/modernizr/2.7.1/modernizr.min.js) and 
> remove it from static/js
>
> web2py-bootstrap3.css, web2py-bootstrap3.js, bootstrap3.py:
> - I see no issues so far, admittedly my tests were in no way extensive
>
> licenses:
> - IANAL, so this being my personal and layman opinion, chosen licenses 
> seem correct for all intended purposes.
>
> I'll try and do more tests soon.
>
> Regards
>
>
> On Monday, December 23, 2013 9:20:48 PM UTC+1, Paolo Caruccio wrote:
>>
>> I just completed a package that applies the bootstrap3 style to some 
>> web2py elements - the current version covers the navigation menus, the auth 
>> navbar and SQLFORMs (via formstyle) - but I need your help for testing it.
>>
>> The package includes the following files:
>>
>>  - bootstrap3.py
>>  - web2py-bootstrap3.css
>>  - web2py-bootstrap3.js
>>  - example of layout.html
>>  - a readme file containing the istallation and usage instructions
>>  - license (please report if the license is right for a future inclusion 
>> in web2py)
>>
>> Here attached some screenshots and a web2py app with examples. 
>>
>> Thank you in advance for your feedbacks, suggestions for optimizing the 
>> code and any additions and everything else useful to improve the package.
>>
>> Marry Christmas. 
>>
>>

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[web2py] Password feild type seems to save in plain text for me.

[Encompass solutions]

I am trying to create a model with an encrypted key so it's harder for 
someone to maliciously screw over my customers.
I have the following snippet.
Field('public_gram', 'boolean', default=False),
Field('tag_name', 'list:string'),
Field('deletion_key', 'password')
)
You can see there the "deletion_key" is a feild type "password" which I 
understand is hashed out so you can't get the original code.  However, when 
I try to print it I get this...
test
CRYPT()(gram_details.deletion_key)
(, None)
CRYPT()(gram_details.deletion_key) == gram_details.deletion_key
False
Where "test" is print gram_details.deletion_key
If this is the case then my password is not very cryptic.
Am I doing something wrong?
BR,
Jason Brower

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Re: [web2py] Password feild type seems to save in plain text for me.

[Marin Pranjić]

How did you insert "test" into database?

If you use db.tablename.insert(..., deletion_key='test') it will store it
plain text because you are bypassing validators.


You should:

1. use .validate_and_insert(...) instead
or
2. use .insert(deletion_key=db.tablename.deletion_key.validate('test'))

If you use SQLFORM(db.tablename...) it will automatically validate (=hash
the password)


Marin


On Tue, Mar 18, 2014 at 6:04 PM, Encompass solutions wrote:

> I am trying to create a model with an encrypted key so it's harder for
> someone to maliciously screw over my customers.
> I have the following snippet.
> Field('public_gram', 'boolean', default=False),
> Field('tag_name', 'list:string'),
> Field('deletion_key', 'password')
> )
> You can see there the "deletion_key" is a feild type "password" which I
> understand is hashed out so you can't get the original code.  However, when
> I try to print it I get this...
> test
> CRYPT()(gram_details.deletion_key)
> (, None)
> CRYPT()(gram_details.deletion_key) == gram_details.deletion_key
> False
> Where "test" is print gram_details.deletion_key
> If this is the case then my password is not very cryptic.
> Am I doing something wrong?
> BR,
> Jason Brower
>
>  --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
> ---
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> email to web2py+unsubscr...@googlegroups.com.
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>

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[web2py] Re: Web2py on Koding.com

[wuelfhis asuaje]

Ok People i solved !

I just copied web2py.js and (as i have a newer version of jquery 1.8.3) 
jquery.js to app/static folder

End of the story !

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[web2py] Re: record versioning and standalone DAL

[Alexandre Andrade]

To record versiong works, you should set


db._common_fields.append(auth.signature)

after you db.define_tables() but
before defining any other table

and 

db.enable_record_versioning(db)

after you define all tables





Em segunda-feira, 30 de setembro de 2013 17h28min12s UTC-3, JaapP escreveu:
>
> Hi,
>
> i've build a (very small) standalone side project (so, running without 
> Web2Py) that uses the Web2Py DAL, and all goes well.
>
> Now i'm trying to enable record versioning. but this seems not to be 
> working  (thread._local object has no attribute 'request')
>
> Has anybody succeeded in using record versioning in a standalone project?
>
> Any hints greatly appreciated!
>
> Jaap
>
>

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Re: [web2py] pysimplesoap help

[piero crisci]

Hi Mariano and thanks for the help.
I did what you said.
I downloaded the httplib2 and the pysimplesoap 1.10
I wrote the following code:

from pysimplesoap.client import SoapClient
location_wsdl = "http://docway.demo.3di.it/3diws/services";
wsdl = "http://docway.demo.3di.it/3diws/services/eXtraWay?wsdl";
import base64
username='admin'
password='3diadmin'
namespace_wsdl = "http://docway.demo.3di.it/3diws/services/eXtraWay";
auth = base64.b64encode('%s:%s' % (username, password))
client = SoapClient(location = location_wsdl, wsdl=wsdl,sessions=True, 
namespace=namespace_wsdl,http_headers={'Authorization': "Basic %s" % auth})


But i got the following error:
  File "", line 1, in 
  File "build\bdist.win32\egg\pysimplesoap\client.py", line 133, in __init__
  File "build\bdist.win32\egg\pysimplesoap\client.py", line 471, in 
wsdl_parse
  File "build\bdist.win32\egg\pysimplesoap\simplexml.py", line 196, in 
__init__
  File "C:\python27\lib\xml\dom\minidom.py", line 1930, in parseString
return expatbuilder.parseString(string)
  File "C:\python27\lib\xml\dom\expatbuilder.py", line 940, in parseString
return builder.parseString(string)
  File "C:\python27\lib\xml\dom\expatbuilder.py", line 223, in parseString
parser.Parse(string, True)
xml.parsers.expat.ExpatError: mismatched tag: line 1, column 939



Il giorno martedì 18 marzo 2014 07:26:35 UTC+1, Mariano Reingart ha scritto:
>
> Hi piero:
>
> The first choice to connect to a webservice that requires username & 
> password (add_credentials), you will httplib2 installed:
>
> https://code.google.com/p/httplib2
>
> Then you could do:
>
> client = SoapClient(location = location_wsdl,sessions=True,
> username='admin',password='xx')
>
> Also, assuming your webservice supports basic auth, you could pass the 
> Authentication http header directly (it shouldn't need to install external 
> library):
>
> import base64
> auth = base64.b64encode('%s:%s' % (username, password)).replace('\n', '')
>
> client = SoapClient(location = location_wsdl, sessions=True, 
> http_headers={'Authorization': "Basic %s" % auth})
>
> Let me know if this solves your issue,
>
> Best regards
>
>
> Mariano Reingart
> http://www.sistemasagiles.com.ar
> http://reingart.blogspot.com
>
>
> On Mon, Mar 17, 2014 at 6:02 PM, piero crisci 
> 
> > wrote:
>
>> Hello i am trying to connect to this wsdl: 
>> http://docway.demo.3di.it/3diws/services/eXtraWay?wsdl 
>> It requires http basic authentication  and i am using pysimplesoap 1.10 
>> and i tried this configuration:
>>
>> from pysimplesoap.client import SoapClient
>> location_wsdl = "http://docway.demo.3di.it/3diws/services";
>> wsdl = "http://docway.demo.3di.it/3diws/services/eXtraWay?wsdl";
>> client = SoapClient(location = 
>> location_wsdl,sessions=True,http_headers={'username': 'admin', 'password': 
>> ''},username='admin',password='xx')
>>
>> I got this error
>> Traceback (most recent call last):
>>   File "", line 1, in 
>>   File "build\bdist.win32\egg\pysimplesoap\client.py", line 133, in 
>> __init__
>>   File "build\bdist.win32\egg\pysimplesoap\client.py", line 469, in 
>> wsdl_parse
>>   File "build\bdist.win32\egg\pysimplesoap\helpers.py", line 71, in fetch
>>   File "build\bdist.win32\egg\pysimplesoap\transport.py", line 121, in 
>> request
>>   File "C:\python27\lib\urllib2.py", line 406, in open
>> response = meth(req, response)
>>   File "C:\python27\lib\urllib2.py", line 519, in http_response
>> 'http', request, response, code, msg, hdrs)
>>   File "C:\python27\lib\urllib2.py", line 444, in error
>> return self._call_chain(*args)
>>   File "C:\python27\lib\urllib2.py", line 378, in _call_chain
>> result = func(*args)
>>   File "C:\python27\lib\urllib2.py", line 527, in http_error_default
>> raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
>> urllib2.HTTPError: HTTP Error 401: Unauthorized
>>
>> It seems like the basic authenitcation is not supported. am I wrong?
>> How i need to change the wsdl call? And how i can use a session to send 
>> different call?
>> Thx for help!
>>  
>> -- 
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
>> --- 
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>> email to web2py+un...@googlegroups.com .
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>>
>
>

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For mo

[web2py] Python Performance Issue, Part 2

[horridohobbyist]

I took the shipping code that I ran in Flask (without Apache) and adapted 
it to run under Apache as a Flask app. That way, I'm comparing apples to 
apples. I'm comparing the performance of the shipping code between Flask 
and web2py.

Below, I've included the 'default' file from Apache2/sites-available for 
Flask.

Basically, the code in Flask executes 10x faster than the same code in 
web2py. So my question is:  if Apache is at fault for the web2py app's slow 
performance, why doesn't Apache hurt the Flask app's performance? (This 
doesn't seem to be related to GIL or WSGI.)



  ServerName 10.211.55.7
  WSGIDaemonProcess hello user=www-data group=www-data threads=5
  WSGIScriptAlias / /home/richard/welcome/hello.wsgi

  
Order Allow,Deny
Allow from all
  


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430x300x200 430x300x200 400x370x330 390x285x140 585x285x200
430x300x200 400x370x330 553x261x152 290x210x160 390x285x140


debug.out
Description: Binary data
from flask import Flask
app = Flask(__name__)

import time
import sys
import os
debug_path = '/home/richard/welcome/debug.out'
def debug(str):
f = open(debug_path,'a')
f.write(str+'\n')
f.close()
return

#
# pyShipping 1.8a
#
import time
import random
from shippackage import Package

def packstrip(bin, p):
"""Creates a Strip which fits into bin.

Returns the Packages to be used in the strip, the dimensions of the strip as a 3-tuple
and a list of "left over" packages.
"""
# This code is somewhat optimized and somewhat unreadable
s = []# strip
r = []# rest
ss = sw = sl = 0  # stripsize
bs = bin.heigth   # binsize
sapp = s.append   # speedup
rapp = r.append   # speedup
ppop = p.pop  # speedup
while p and (ss <= bs):
n = ppop(0)
nh, nw, nl = n.size
if ss + nh <= bs:
ss += nh
sapp(n)
if nw > sw:
sw = nw
if nl > sl:
sl = nl
else:
rapp(n)
return s, (ss, sw, sl), r + p


def packlayer(bin, packages):
strips = []
layersize = 0
layerx = 0
layery = 0
binsize = bin.width
while packages:
strip, (sizex, stripsize, sizez), rest = packstrip(bin, packages)
if layersize + stripsize <= binsize:
if not strip:
# we were not able to pack anything
break
layersize += stripsize
layerx = max([sizex, layerx])
layery = max([sizez, layery])
strips.extend(strip)
packages = rest
else:
# Next Layer please
packages = strip + rest
break
return strips, (layerx, layersize, layery), packages


def packbin(bin, packages):
packages.sort()
layers = []
contentheigth = 0
contentx = 0
contenty = 0
binsize = bin.length
while packages:
layer, (sizex, sizey, layersize), rest = packlayer(bin, packages)
if contentheigth + layersize <= binsize:
if not layer:
# we were not able to pack anything
break
contentheigth += layersize
contentx = max([contentx, sizex])
contenty = max([contenty, sizey])
layers.extend(layer)
packages = rest
else:
# Next Bin please
packages = layer + rest
break
return layers, (contentx, contenty, contentheigth), packages


def packit(bin, originalpackages):
packedbins = []
packages = sorted(originalpackages)
while packages:
packagesinbin, (binx, biny, binz), rest = packbin(bin, packages)
if not packagesinbin:
# we were not able to pack anything
break
packedbins.append(packagesinbin)
packages = rest
# we now have a result, try to get a better result by rotating some bins

return packedbins, rest


# In newer Python versions these van be imported:
# from itertools import permutations
def product(*args, **kwds):
# product('ABCD', 'xy') --> Ax Ay Bx By Cx Cy Dx Dy
# product(range(2), repeat=3) --> 000 001 010 011 100 101 110 111
pools = map(tuple, args) * kwds.get('repeat', 1)
result = [[]]
for pool in pools:
result = [x + [y] for x in result for y in pool]
for prod in result:
yield tuple(prod)


def permutations(iterable, r=None):
pool = tuple(iterable)
n = len(pool)
r = n if r is None else r
for indi

Re: [web2py] Python Performance Issue, Part 2

[Michele Comitini]

> WSGIDaemonProcess hello user=www-data group=www-data threads=5

with web2py try the following instead:
WSGIDaemonProcess hello user=www-data group=www-data processes= threads=(0 or 1)

If it's faster, then the GIL must be the cause.  flask by default has
much less features active (session for instance)



2014-03-18 21:04 GMT+01:00 horridohobbyist :
> I took the shipping code that I ran in Flask (without Apache) and adapted it
> to run under Apache as a Flask app. That way, I'm comparing apples to
> apples. I'm comparing the performance of the shipping code between Flask and
> web2py.
>
> Below, I've included the 'default' file from Apache2/sites-available for
> Flask.
>
> Basically, the code in Flask executes 10x faster than the same code in
> web2py. So my question is:  if Apache is at fault for the web2py app's slow
> performance, why doesn't Apache hurt the Flask app's performance? (This
> doesn't seem to be related to GIL or WSGI.)
>
>
> 
>   ServerName 10.211.55.7
>   WSGIDaemonProcess hello user=www-data group=www-data threads=5
>   WSGIScriptAlias / /home/richard/welcome/hello.wsgi
>
>   
> Order Allow,Deny
> Allow from all
>   
> 
>
> --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
> ---
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> "web2py-users" group.
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> email to web2py+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

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Re: [web2py] Re: .json in url does not like "contruções"

[Michele Comitini]

@Antonio,

please create a simple example action that causes the error in your
setup and post it here.
something like

# -*- coding: utf-8 -*-

def myfunc():
   return dict(mykey='contruções')




2014-03-18 15:57 GMT+01:00 António Ramos :
> yes i have it in my controller.py file
>
> # -*- coding: utf-8 -*-
>
>
>
> 2014-03-18 14:48 GMT+00:00 Leonel Câmara :
>
>> Olá António,
>>
>> Is your controller .py file saved in utf-8 (make sure the text editor is
>> doing it, use "the save with encoding" option if you have it) and has this
>> as the first line?
>>
>> # -*- coding: utf-8 -*-
>>
>> --
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
>> ---
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>> "web2py-users" group.
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>> email to web2py+unsubscr...@googlegroups.com.
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>
>
> --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
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[web2py] Re: What's the correct implementation of cache.action?

[Niphlod]

@cache.action(public=False)
will cache the content server-side and send along "in the past" cache 
headers, marking also the content as private, so browsers are forced to 
reissue the request for that page. 

On Tuesday, March 18, 2014 5:16:24 PM UTC+1, Anthony wrote:
>
> Seems like a reasonable approach. If you don't want to cache within the 
>>> index function, you could instead use the @cache() decorator (rather than 
>>> @cache.action).
>>>
>>
>> I will give it a try. I haven't tried that because the book suggested 
>> using @cache.action, but I will give it a try.
>>
>
> Well, you're already using cache() within the index function itself -- it 
> will be no different to use the decorator instead. The main issue is to 
> make sure the key is unique to the specific content being cached (e.g., if 
> there is a query string in the URL that affects the returned response, make 
> sure that is part of the key).
>
> Anthony
>

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Re: [web2py] pysimplesoap help

[piero crisci]

Well i made it with pysimplesoad 1.12
Thanks!

Il giorno martedì 18 marzo 2014 20:44:54 UTC+1, piero crisci ha scritto:
>
> Hi Mariano and thanks for the help.
> I did what you said.
> I downloaded the httplib2 and the pysimplesoap 1.10
> In the pysimplesoad 1.10 the params "username" and "password" are not 
> present anymore
> I wrote the following code:
>
> from pysimplesoap.client import SoapClient
> location_wsdl = "http://docway.demo.3di.it/3diws/services";
> wsdl = "http://docway.demo.3di.it/3diws/services/eXtraWay?wsdl";
> import base64
> username='admin'
> password='X'
> namespace_wsdl = "http://docway.demo.3di.it/3diws/services/eXtraWay";
> auth = base64.b64encode('%s:%s' % (username, password))
> client = SoapClient(location = location_wsdl, wsdl=wsdl,sessions=True, 
> namespace=namespace_wsdl,http_headers={'Authorization': "Basic %s" % auth})
>
>
> But i got the following error:
>   File "", line 1, in 
>   File "build\bdist.win32\egg\pysimplesoap\client.py", line 133, in 
> __init__
>   File "build\bdist.win32\egg\pysimplesoap\client.py", line 471, in 
> wsdl_parse
>   File "build\bdist.win32\egg\pysimplesoap\simplexml.py", line 196, in 
> __init__
>   File "C:\python27\lib\xml\dom\minidom.py", line 1930, in parseString
> return expatbuilder.parseString(string)
>   File "C:\python27\lib\xml\dom\expatbuilder.py", line 940, in parseString
> return builder.parseString(string)
>   File "C:\python27\lib\xml\dom\expatbuilder.py", line 223, in parseString
> parser.Parse(string, True)
> xml.parsers.expat.ExpatError: mismatched tag: line 1, column 939
>
>
>
> Il giorno martedì 18 marzo 2014 07:26:35 UTC+1, Mariano Reingart ha 
> scritto:
>>
>> Hi piero:
>>
>> The first choice to connect to a webservice that requires username & 
>> password (add_credentials), you will httplib2 installed:
>>
>> https://code.google.com/p/httplib2
>>
>> Then you could do:
>>
>> client = SoapClient(location = location_wsdl,sessions=True,
>> username='admin',password='xx')
>>
>> Also, assuming your webservice supports basic auth, you could pass the 
>> Authentication http header directly (it shouldn't need to install external 
>> library):
>>
>> import base64
>> auth = base64.b64encode('%s:%s' % (username, password)).replace('\n', '')
>>
>> client = SoapClient(location = location_wsdl, sessions=True, 
>> http_headers={'Authorization': "Basic %s" % auth})
>>
>> Let me know if this solves your issue,
>>
>> Best regards
>>
>>
>> Mariano Reingart
>> http://www.sistemasagiles.com.ar
>> http://reingart.blogspot.com
>>
>>
>> On Mon, Mar 17, 2014 at 6:02 PM, piero crisci wrote:
>>
>>> Hello i am trying to connect to this wsdl: 
>>> http://docway.demo.3di.it/3diws/services/eXtraWay?wsdl 
>>> It requires http basic authentication  and i am using pysimplesoap 1.10 
>>> and i tried this configuration:
>>>
>>> from pysimplesoap.client import SoapClient
>>> location_wsdl = "http://docway.demo.3di.it/3diws/services";
>>> wsdl = "http://docway.demo.3di.it/3diws/services/eXtraWay?wsdl";
>>> client = SoapClient(location = 
>>> location_wsdl,sessions=True,http_headers={'username': 'admin', 'password': 
>>> ''},username='admin',password='xx')
>>>
>>> I got this error
>>> Traceback (most recent call last):
>>>   File "", line 1, in 
>>>   File "build\bdist.win32\egg\pysimplesoap\client.py", line 133, in 
>>> __init__
>>>   File "build\bdist.win32\egg\pysimplesoap\client.py", line 469, in 
>>> wsdl_parse
>>>   File "build\bdist.win32\egg\pysimplesoap\helpers.py", line 71, in fetch
>>>   File "build\bdist.win32\egg\pysimplesoap\transport.py", line 121, in 
>>> request
>>>   File "C:\python27\lib\urllib2.py", line 406, in open
>>> response = meth(req, response)
>>>   File "C:\python27\lib\urllib2.py", line 519, in http_response
>>> 'http', request, response, code, msg, hdrs)
>>>   File "C:\python27\lib\urllib2.py", line 444, in error
>>> return self._call_chain(*args)
>>>   File "C:\python27\lib\urllib2.py", line 378, in _call_chain
>>> result = func(*args)
>>>   File "C:\python27\lib\urllib2.py", line 527, in http_error_default
>>> raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
>>> urllib2.HTTPError: HTTP Error 401: Unauthorized
>>>
>>> It seems like the basic authenitcation is not supported. am I wrong?
>>> How i need to change the wsdl call? And how i can use a session to send 
>>> different call?
>>> Thx for help!
>>>  
>>> -- 
>>> Resources:
>>> - http://web2py.com
>>> - http://web2py.com/book (Documentation)
>>> - http://github.com/web2py/web2py (Source code)
>>> - https://code.google.com/p/web2py/issues/list (Report Issues)
>>> --- 
>>> You received this message because you are subscribed to the Google 
>>> Groups "web2py-users" group.
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>>> an email to web2py+un...@googlegroups.com.
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>>>
>>
>>

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Re: [web2py] Re: Python Performance Issue

[Niphlod]

apache isn't fine for static files either. 
The "move" to evented-like webservers of practically all tech-savvy peoples 
in the need is a good estimate on how much the uber-standard apache lacks 
in easy-to-debug scenario (I won't even start with the know-how of the 
syntax to make it work as you'd like).
It grew big with cgi, php and java and practically every shared hosting out 
there "back in the days" where no alternatives were available. It shows all 
of its age ^__^

BTW: nginx doesn't run python as apache does. Usually you have something to 
manage python processes (gunicorn or uwsgi) and nginx just buffers in/out 
requests (and being "evented-like" is a perfect candidate).

On Tuesday, March 18, 2014 7:21:29 AM UTC+1, Massimo Di Pierro wrote:
>
> People have found lots of variability in performance with apache+mod_wsgi. 
> Performance is very sensitive to memeory/etc.
>
> This is because Apache is not async (like nginx) and it either uses 
> threads or processes. Both have issues with Python. Threads slow you down 
> because of the GIL. Parallel processes may consume lots of memory which may 
> also cause performance issues. Things get worse and worse if processes hand 
> (think of clients sending requests but not loading because of slow 
> connections).
>
> Apache is fine for static files. gunicorn and nginx are known to have much 
> better performance with Pyhton web apps.
>
> Massimo
>
>

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Re: [web2py] Re: Python Performance Issue

[Niphlod]

BTW: apache still suffers the SLOWLORIS attack if not carefully configured. 
ATM only workarounds to mitigate the issue are there, but not a definitive 
solution.

On Tuesday, March 18, 2014 9:46:38 PM UTC+1, Niphlod wrote:
>
> apache isn't fine for static files either. 
> The "move" to evented-like webservers of practically all tech-savvy 
> peoples in the need is a good estimate on how much the uber-standard apache 
> lacks in easy-to-debug scenario (I won't even start with the know-how of 
> the syntax to make it work as you'd like).
> It grew big with cgi, php and java and practically every shared hosting 
> out there "back in the days" where no alternatives were available. It shows 
> all of its age ^__^
>
> BTW: nginx doesn't run python as apache does. Usually you have something 
> to manage python processes (gunicorn or uwsgi) and nginx just buffers 
> in/out requests (and being "evented-like" is a perfect candidate).
>
> On Tuesday, March 18, 2014 7:21:29 AM UTC+1, Massimo Di Pierro wrote:
>>
>> People have found lots of variability in performance with 
>> apache+mod_wsgi. Performance is very sensitive to memeory/etc.
>>
>> This is because Apache is not async (like nginx) and it either uses 
>> threads or processes. Both have issues with Python. Threads slow you down 
>> because of the GIL. Parallel processes may consume lots of memory which may 
>> also cause performance issues. Things get worse and worse if processes hand 
>> (think of clients sending requests but not loading because of slow 
>> connections).
>>
>> Apache is fine for static files. gunicorn and nginx are known to have 
>> much better performance with Pyhton web apps.
>>
>> Massimo
>>
>>

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[web2py] calling download function page by ajax

[Richard]

Hello,

I want to call 2 functions that return a file to be upload/download into 
client computer... I have been able to make the first call page to upload 
file correctly, but I can't figure out how to make upload both files, I 
thought I could solve the issue with ajax call, no lock.

# controller

def form_func_that_call_my_download_funcs():
...
if form.process().accpet:
...
redirect(URL(c='label', f='download_func1', extension=False,
   vars=dict(var1=var1, **other_vars_dict)), 
client_side=True) # This work for one file as it should...
...


def shell_func():
return dict(a='')


# view
# shell_func()

{{=LOAD('lotns', 'other_func_that_just_return_so_var_input', 
extension='load', ajax=True, target='batch_div')}}








I try to change form_func_that_call_my_download_funcs() like this :

def form_func_that_call_my_download_funcs():
...
if form.process().accpet:
...
response.js = 
"$.get(url='http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678');"
response.js += 
"$.get(url='http://127.0.0.1:8000/sgddms/label/download_func2?var1=2676&var1=2673&var1=2678');"
 
# I see the call passing in chrome dev tool both the files are not 
download??? Try with $.post() too...
...


# Here what look my download function, both are the same so I just show the 
important thing in one of them...
def download_func1():
...
final = StringIO(final_wordml)
response.headers['Content-Type'] = 'xml'
response.headers['Content-Disposition'] = \
'attachment;filename=filename123_%s.xml;' % 
request.now.strftime('%Y-%m-%d_%H-%M-%S-%f')
response.write(final.getvalue(), escape=False)
raise HTTP(200, str(final.getvalue()), **response.headers)


Thanks for any pointer!

Richard

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Re: [web2py] calling download function page by ajax

[Niphlod]

content-disposition on ajax requests is not allowed, therefore browser 
refuse to show the usual "download as file" dialog, plain and simple :D

You need to come up with an alternative plan (such as, opening a new window 
pointing to the url, open a hidden iframe, using 3rd party libraries that 
do the previous, etc)

On Tuesday, March 18, 2014 9:59:40 PM UTC+1, Richard wrote:
>
> Hello,
>
> I want to call 2 functions that return a file to be upload/download into 
> client computer... I have been able to make the first call page to upload 
> file correctly, but I can't figure out how to make upload both files, I 
> thought I could solve the issue with ajax call, no lock.
>
> # controller
>
> def form_func_that_call_my_download_funcs():
> ...
> if form.process().accpet:
> ...
> redirect(URL(c='label', f='download_func1', extension=False,
>vars=dict(var1=var1, **other_vars_dict)), 
> client_side=True) # This work for one file as it should...
> ...
>
>
> def shell_func():
> return dict(a='')
>
>
> # view
> # shell_func()
> 
> {{=LOAD('lotns', 'other_func_that_just_return_so_var_input', 
> extension='load', ajax=True, target='batch_div')}}
> 
> 
>
> 
> 
> 
>
>
> I try to change form_func_that_call_my_download_funcs() like this :
>
> def form_func_that_call_my_download_funcs():
> ...
> if form.process().accpet:
> ...
> response.js = "$.get(url='
> http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678')
> ;"
> response.js += "$.get(url='
> http://127.0.0.1:8000/sgddms/label/download_func2?var1=2676&var1=2673&var1=2678');"
>  
> # I see the call passing in chrome dev tool both the files are not 
> download??? Try with $.post() too...
> ...
>
>
> # Here what look my download function, both are the same so I just show 
> the important thing in one of them...
> def download_func1():
> ...
> final = StringIO(final_wordml)
> response.headers['Content-Type'] = 'xml'
> response.headers['Content-Disposition'] = \
> 'attachment;filename=filename123_%s.xml;' % 
> request.now.strftime('%Y-%m-%d_%H-%M-%S-%f')
> response.write(final.getvalue(), escape=False)
> raise HTTP(200, str(final.getvalue()), **response.headers)
>
>
> Thanks for any pointer!
>
> Richard
>

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[web2py] 504 Gateway Time-out

[António Ramos]

i have this error on linux with sqlite as my database sometimes when i save
a record

504 Gateway Time-out

--
nginx


Did anyone had this error before?


Thank you

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Re: [web2py] calling download function page by ajax

[Richard Vézina]

:(

I already have a workaround where I show buttons for starting download for
each files that are appended on submit, but I hate that from user
experience point of view... I thought about an other solution, where I
could get vars values from javascritp once form is submit trought
session.var but I am not sure it will work.

Do you know such a library?

Thanks

Richard


On Tue, Mar 18, 2014 at 6:05 PM, Niphlod  wrote:

> content-disposition on ajax requests is not allowed, therefore browser
> refuse to show the usual "download as file" dialog, plain and simple :D
>
> You need to come up with an alternative plan (such as, opening a new
> window pointing to the url, open a hidden iframe, using 3rd party libraries
> that do the previous, etc)
>
>
> On Tuesday, March 18, 2014 9:59:40 PM UTC+1, Richard wrote:
>>
>> Hello,
>>
>> I want to call 2 functions that return a file to be upload/download into
>> client computer... I have been able to make the first call page to upload
>> file correctly, but I can't figure out how to make upload both files, I
>> thought I could solve the issue with ajax call, no lock.
>>
>> # controller
>>
>> def form_func_that_call_my_download_funcs():
>> ...
>> if form.process().accpet:
>> ...
>> redirect(URL(c='label', f='download_func1', extension=False,
>>vars=dict(var1=var1, **other_vars_dict)),
>> client_side=True) # This work for one file as it should...
>> ...
>>
>>
>> def shell_func():
>> return dict(a='')
>>
>>
>> # view
>> # shell_func()
>> 
>> {{=LOAD('lotns', 'other_func_that_just_return_so_var_input',
>> extension='load', ajax=True, target='batch_div')}}
>> 
>> 
>>
>> 
>> 
>> 
>>
>>
>> I try to change form_func_that_call_my_download_funcs() like this :
>>
>> def form_func_that_call_my_download_funcs():
>> ...
>> if form.process().accpet:
>> ...
>> response.js = "$.get(url='http://127.0.0.1:
>> 8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678');"
>> response.js += "$.get(url='http://127.0.0.1:
>> 8000/sgddms/label/download_func2?var1=2676&var1=2673&var1=2678');" # I
>> see the call passing in chrome dev tool both the files are not download???
>> Try with $.post() too...
>> ...
>>
>>
>> # Here what look my download function, both are the same so I just show
>> the important thing in one of them...
>> def download_func1():
>> ...
>> final = StringIO(final_wordml)
>> response.headers['Content-Type'] = 'xml'
>> response.headers['Content-Disposition'] = \
>> 'attachment;filename=filename123_%s.xml;' %
>> request.now.strftime('%Y-%m-%d_%H-%M-%S-%f')
>> response.write(final.getvalue(), escape=False)
>> raise HTTP(200, str(final.getvalue()), **response.headers)
>>
>>
>> Thanks for any pointer!
>>
>> Richard
>>
>  --
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> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
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Re: [web2py] Python Performance Issue, Part 2

[horridohobbyist]

Done. With processes=3, the 10x discrepancy is eliminated! (And this is in 
a Linux VM configured for 1 CPU.)


On Tuesday, 18 March 2014 16:26:24 UTC-4, Michele Comitini wrote:
>
> > WSGIDaemonProcess hello user=www-data group=www-data threads=5 
>
> with web2py try the following instead: 
> WSGIDaemonProcess hello user=www-data group=www-data processes= of cores + 1> threads=(0 or 1) 
>
> If it's faster, then the GIL must be the cause.  flask by default has 
> much less features active (session for instance) 
>
>
>
> 2014-03-18 21:04 GMT+01:00 horridohobbyist 
> >: 
>
> > I took the shipping code that I ran in Flask (without Apache) and 
> adapted it 
> > to run under Apache as a Flask app. That way, I'm comparing apples to 
> > apples. I'm comparing the performance of the shipping code between Flask 
> and 
> > web2py. 
> > 
> > Below, I've included the 'default' file from Apache2/sites-available for 
> > Flask. 
> > 
> > Basically, the code in Flask executes 10x faster than the same code in 
> > web2py. So my question is:  if Apache is at fault for the web2py app's 
> slow 
> > performance, why doesn't Apache hurt the Flask app's performance? (This 
> > doesn't seem to be related to GIL or WSGI.) 
> > 
> > 
> >  
> >   ServerName 10.211.55.7 
> >   WSGIDaemonProcess hello user=www-data group=www-data threads=5 
> >   WSGIScriptAlias / /home/richard/welcome/hello.wsgi 
> > 
> >
> > Order Allow,Deny 
> > Allow from all 
> >
> >  
> > 
> > -- 
> > Resources: 
> > - http://web2py.com 
> > - http://web2py.com/book (Documentation) 
> > - http://github.com/web2py/web2py (Source code) 
> > - https://code.google.com/p/web2py/issues/list (Report Issues) 
> > --- 
> > You received this message because you are subscribed to the Google 
> Groups 
> > "web2py-users" group. 
> > To unsubscribe from this group and stop receiving emails from it, send 
> an 
> > email to web2py+un...@googlegroups.com . 
> > For more options, visit https://groups.google.com/d/optout. 
>

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Re: [web2py] Python Performance Issue, Part 2

[Massimo Di Pierro]

Thank you for all your tests. You should write a summary of your results 
with recommendations for Apache users.

On Tuesday, 18 March 2014 19:44:29 UTC-5, horridohobbyist wrote:
>
> Done. With processes=3, the 10x discrepancy is eliminated! (And this is in 
> a Linux VM configured for 1 CPU.)
>
>
> On Tuesday, 18 March 2014 16:26:24 UTC-4, Michele Comitini wrote:
>>
>> > WSGIDaemonProcess hello user=www-data group=www-data threads=5 
>>
>> with web2py try the following instead: 
>> WSGIDaemonProcess hello user=www-data group=www-data processes=> of cores + 1> threads=(0 or 1) 
>>
>> If it's faster, then the GIL must be the cause.  flask by default has 
>> much less features active (session for instance) 
>>
>>
>>
>> 2014-03-18 21:04 GMT+01:00 horridohobbyist : 
>> > I took the shipping code that I ran in Flask (without Apache) and 
>> adapted it 
>> > to run under Apache as a Flask app. That way, I'm comparing apples to 
>> > apples. I'm comparing the performance of the shipping code between 
>> Flask and 
>> > web2py. 
>> > 
>> > Below, I've included the 'default' file from Apache2/sites-available 
>> for 
>> > Flask. 
>> > 
>> > Basically, the code in Flask executes 10x faster than the same code in 
>> > web2py. So my question is:  if Apache is at fault for the web2py app's 
>> slow 
>> > performance, why doesn't Apache hurt the Flask app's performance? (This 
>> > doesn't seem to be related to GIL or WSGI.) 
>> > 
>> > 
>> >  
>> >   ServerName 10.211.55.7 
>> >   WSGIDaemonProcess hello user=www-data group=www-data threads=5 
>> >   WSGIScriptAlias / /home/richard/welcome/hello.wsgi 
>> > 
>> >
>> > Order Allow,Deny 
>> > Allow from all 
>> >
>> >  
>> > 
>> > -- 
>> > Resources: 
>> > - http://web2py.com 
>> > - http://web2py.com/book (Documentation) 
>> > - http://github.com/web2py/web2py (Source code) 
>> > - https://code.google.com/p/web2py/issues/list (Report Issues) 
>> > --- 
>> > You received this message because you are subscribed to the Google 
>> Groups 
>> > "web2py-users" group. 
>> > To unsubscribe from this group and stop receiving emails from it, send 
>> an 
>> > email to web2py+un...@googlegroups.com. 
>> > For more options, visit https://groups.google.com/d/optout. 
>>
>

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[web2py] web2pyslices

[Frank]

Hi,

I don’t see any “bug/issue report” on web2pyslices. Is there one?

I’ve posted a recipe comment but I don’t see (also) the comment anywhere or any 
flash message saying it will be checked for approval or so.

my 2 cents,

Cheers, 
-- 
Frank

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[web2py] MicroData and Uploaded Images problem

[openworldofbusiness]

Hello I am implementing some pretty basic micro data information (For 
Google Searches) and I am having a problem displaying an image uploaded to 
SQLITE in the Structured Data Testing tool. 

Here is a screenshot what the information contains

http://imagehost.suck-o.com/images/2014/03/19/image.png

The logo field is the problem in question. 

This is the output displayed in the listing

http://imagehost.suck-o.com/images/2014/03/19/image2.png

I checked the link which is a direct link to download the image in my 
browser (Normally an image selected in my browser will display in the 
browser). Is there a way to directly link to the images that are uploaded 
in to the uploads folder. So that hopefully based on my assumption Google 
will understand how to handle the image?

Thank you for any advice :D


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- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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Re: [web2py] Python Performance Issue, Part 2

[horridohobbyist]

I shall do that. Thanks.

With the knowledge about "processes=", I've tuned my actual Linux server to 
eliminate the 10x slowdown. As it turns out, for my 2.4GHz quad-core Xeon 
with 4GB RAM, "processes=2" works best. I found that any other value (3, 4, 
5) gave very inconsistent results–sometimes I would get 1x (the ideal) and 
sometimes I would get 10x. Very bizarre.

"processes=2" is counter-intuitive. After all, I have 4 cores. Why 
shouldn't "processes=4" be good?

Anyway, not only is the shipping code fast, but I find that my overall 
web2py app feels a lot snappier. Is it just my imagination?

If "processes=2" is boosting the speed of Python in general, then you would 
expect all of web2py to benefit. So maybe it's not my imagination.

Anyway, the takeaway, I think, is that you must tune the Apache 
configuration for the particular server hardware that you have. The default 
"processes=1" is not good enough.


On Tuesday, 18 March 2014 22:37:58 UTC-4, Massimo Di Pierro wrote:
>
> Thank you for all your tests. You should write a summary of your results 
> with recommendations for Apache users.
>
> On Tuesday, 18 March 2014 19:44:29 UTC-5, horridohobbyist wrote:
>>
>> Done. With processes=3, the 10x discrepancy is eliminated! (And this is 
>> in a Linux VM configured for 1 CPU.)
>>
>>
>> On Tuesday, 18 March 2014 16:26:24 UTC-4, Michele Comitini wrote:
>>>
>>> > WSGIDaemonProcess hello user=www-data group=www-data threads=5 
>>>
>>> with web2py try the following instead: 
>>> WSGIDaemonProcess hello user=www-data group=www-data processes=>> of cores + 1> threads=(0 or 1) 
>>>
>>> If it's faster, then the GIL must be the cause.  flask by default has 
>>> much less features active (session for instance) 
>>>
>>>
>>>
>>> 2014-03-18 21:04 GMT+01:00 horridohobbyist : 
>>> > I took the shipping code that I ran in Flask (without Apache) and 
>>> adapted it 
>>> > to run under Apache as a Flask app. That way, I'm comparing apples to 
>>> > apples. I'm comparing the performance of the shipping code between 
>>> Flask and 
>>> > web2py. 
>>> > 
>>> > Below, I've included the 'default' file from Apache2/sites-available 
>>> for 
>>> > Flask. 
>>> > 
>>> > Basically, the code in Flask executes 10x faster than the same code in 
>>> > web2py. So my question is:  if Apache is at fault for the web2py app's 
>>> slow 
>>> > performance, why doesn't Apache hurt the Flask app's performance? 
>>> (This 
>>> > doesn't seem to be related to GIL or WSGI.) 
>>> > 
>>> > 
>>> >  
>>> >   ServerName 10.211.55.7 
>>> >   WSGIDaemonProcess hello user=www-data group=www-data threads=5 
>>> >   WSGIScriptAlias / /home/richard/welcome/hello.wsgi 
>>> > 
>>> >
>>> > Order Allow,Deny 
>>> > Allow from all 
>>> >
>>> >  
>>> > 
>>> > -- 
>>> > Resources: 
>>> > - http://web2py.com 
>>> > - http://web2py.com/book (Documentation) 
>>> > - http://github.com/web2py/web2py (Source code) 
>>> > - https://code.google.com/p/web2py/issues/list (Report Issues) 
>>> > --- 
>>> > You received this message because you are subscribed to the Google 
>>> Groups 
>>> > "web2py-users" group. 
>>> > To unsubscribe from this group and stop receiving emails from it, send 
>>> an 
>>> > email to web2py+un...@googlegroups.com. 
>>> > For more options, visit https://groups.google.com/d/optout. 
>>>
>>

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Re: [web2py] Python Performance Issue, Part 2

[horridohobbyist]

"threads=0" is no good–Apache restart upchucks on this.

BTW, I haven't experimented with the threads value. Might this also improve 
performance (with respect to GIL)?

Also, I was wondering. Is the "processes=" solution related to whether you 
are using the "prefork" MPM or the "worker" MPM? I know that Apache is 
normally compiled to use the prefork MPM.


On Tuesday, 18 March 2014 16:26:24 UTC-4, Michele Comitini wrote:
>
> > WSGIDaemonProcess hello user=www-data group=www-data threads=5 
>
> with web2py try the following instead: 
> WSGIDaemonProcess hello user=www-data group=www-data processes= of cores + 1> threads=(0 or 1) 
>
> If it's faster, then the GIL must be the cause.  flask by default has 
> much less features active (session for instance) 
>
>
>
> 2014-03-18 21:04 GMT+01:00 horridohobbyist 
> >: 
>
> > I took the shipping code that I ran in Flask (without Apache) and 
> adapted it 
> > to run under Apache as a Flask app. That way, I'm comparing apples to 
> > apples. I'm comparing the performance of the shipping code between Flask 
> and 
> > web2py. 
> > 
> > Below, I've included the 'default' file from Apache2/sites-available for 
> > Flask. 
> > 
> > Basically, the code in Flask executes 10x faster than the same code in 
> > web2py. So my question is:  if Apache is at fault for the web2py app's 
> slow 
> > performance, why doesn't Apache hurt the Flask app's performance? (This 
> > doesn't seem to be related to GIL or WSGI.) 
> > 
> > 
> >  
> >   ServerName 10.211.55.7 
> >   WSGIDaemonProcess hello user=www-data group=www-data threads=5 
> >   WSGIScriptAlias / /home/richard/welcome/hello.wsgi 
> > 
> >
> > Order Allow,Deny 
> > Allow from all 
> >
> >  
> > 
> > -- 
> > Resources: 
> > - http://web2py.com 
> > - http://web2py.com/book (Documentation) 
> > - http://github.com/web2py/web2py (Source code) 
> > - https://code.google.com/p/web2py/issues/list (Report Issues) 
> > --- 
> > You received this message because you are subscribed to the Google 
> Groups 
> > "web2py-users" group. 
> > To unsubscribe from this group and stop receiving emails from it, send 
> an 
> > email to web2py+un...@googlegroups.com . 
> > For more options, visit https://groups.google.com/d/optout. 
>

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[web2py] Customisable error messages for a form determined by device type.

[chris_g]

I am happily using the web2py FORM and custom validator's for form 
validation using JSON messaging.

The problem I have is a customer wants verbose messages for webpages, but 
succinct messages for everything else.
For eg,
On the webpage "You must enter an email address", "A password is required", 
" is an invalid post code" while on an iPhone app or Mobile Webpage, 
"email required", "password required", "invalid postcode".

Device type is easy enough to determine by data from request.user_agent(), 
so that isn't a big issue.

I'm just curious to see how others approach this kind of situation. 
Obviously, I'd like to keep my registration method and FORM object function 
common so I don't have to maintain the same code in multiple places.



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[web2py] Re: MicroData and Uploaded Images problem

[Leonel Câmara]

You can use attachments=False in your response.download call on your 
download controller function if you don't want it to download 
automatically.  
  
Although I don't think that's what's causing the google trouble.  
  
You can also try adding:

response.headers['Content-Type'] = 'image/png'

Again, I don't see anything wrong with your original solution. Is it 
possible the thumbnail generation is the problem or that the logo just 
isn't supposed to show or something?

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[web2py] Newby - what is "(**dict(form.vars))"

[Chops]

I am just learning Web2py

I have an understanding of dict but now I find it used with two asterisks 
before it and I can't seem to find an explanation!!

Can it be used with anything other than a form? ((**dict(form.vars))?

Can I use the two asterisks on other bits of code to server a common 
purpose?

Thanks in advance

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Re: [web2py] calling download function page by ajax

[Limedrop]

You might want to look at 
http://johnculviner.com/jquery-file-download-plugin-for-ajax-like-feature-rich-file-downloads/

The only fiddly bit is to make sure you set the cookies correctly (see the 
documentation for details).

For example:

  {{view}}
  
response.files.append(URL('static','js/jquery.fileDownload/jquery.fileDownload.js'))
  
  
  {{controller}}
  response.js = 
'$.fileDownload("http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678";);'
  response.js += 
'$.fileDownload("http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678";);'
  # these cookies are required by jQuery.fileDownload.js
  # to enable download via ajax
  response.cookies['fileDownload'] = 'true'
  response.cookies['fileDownload']['path'] = "/"





On Wednesday, March 19, 2014 1:38:43 PM UTC+13, Richard wrote:
>
> :(
>
> I already have a workaround where I show buttons for starting download for 
> each files that are appended on submit, but I hate that from user 
> experience point of view... I thought about an other solution, where I 
> could get vars values from javascritp once form is submit trought 
> session.var but I am not sure it will work.
>
> Do you know such a library?
>
> Thanks
>
> Richard
>
>
> On Tue, Mar 18, 2014 at 6:05 PM, Niphlod  >wrote:
>
>> content-disposition on ajax requests is not allowed, therefore browser 
>> refuse to show the usual "download as file" dialog, plain and simple :D
>>
>> You need to come up with an alternative plan (such as, opening a new 
>> window pointing to the url, open a hidden iframe, using 3rd party libraries 
>> that do the previous, etc)
>>
>>
>> On Tuesday, March 18, 2014 9:59:40 PM UTC+1, Richard wrote:
>>>
>>> Hello,
>>>
>>> I want to call 2 functions that return a file to be upload/download into 
>>> client computer... I have been able to make the first call page to upload 
>>> file correctly, but I can't figure out how to make upload both files, I 
>>> thought I could solve the issue with ajax call, no lock.
>>>
>>> # controller
>>>
>>> def form_func_that_call_my_download_funcs():
>>> ...
>>> if form.process().accpet:
>>> ...
>>> redirect(URL(c='label', f='download_func1', extension=False,
>>>vars=dict(var1=var1, **other_vars_dict)), 
>>> client_side=True) # This work for one file as it should...
>>> ...
>>>
>>>
>>> def shell_func():
>>> return dict(a='')
>>>
>>>
>>> # view
>>> # shell_func()
>>> 
>>> {{=LOAD('lotns', 'other_func_that_just_return_so_var_input', 
>>> extension='load', ajax=True, target='batch_div')}}
>>> 
>>> 
>>>
>>> 
>>> 
>>> 
>>>
>>>
>>> I try to change form_func_that_call_my_download_funcs() like this :
>>>
>>> def form_func_that_call_my_download_funcs():
>>> ...
>>> if form.process().accpet:
>>> ...
>>> response.js = "$.get(url='http://127.0.0.1:
>>> 8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678');"
>>> response.js += "$.get(url='http://127.0.0.1:
>>> 8000/sgddms/label/download_func2?var1=2676&var1=2673&var1=2678');" # I 
>>> see the call passing in chrome dev tool both the files are not download??? 
>>> Try with $.post() too...
>>> ...
>>>
>>>
>>> # Here what look my download function, both are the same so I just show 
>>> the important thing in one of them...
>>> def download_func1():
>>> ...
>>> final = StringIO(final_wordml)
>>> response.headers['Content-Type'] = 'xml'
>>> response.headers['Content-Disposition'] = \
>>> 'attachment;filename=filename123_%s.xml;' % 
>>> request.now.strftime('%Y-%m-%d_%H-%M-%S-%f')
>>> response.write(final.getvalue(), escape=False)
>>> raise HTTP(200, str(final.getvalue()), **response.headers)
>>>
>>>
>>> Thanks for any pointer!
>>>
>>> Richard
>>>
>>  -- 
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
>> --- 
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>> "web2py-users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to web2py+un...@googlegroups.com .
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>

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[web2py] web2py wikipedia article update & translation

[shapovalovdenis]

Hi!

just stumbled across wikipedia article about web2py 
https://en.wikipedia.org/wiki/Web2py and besides it's a bit outdated, I've 
found that there is no russian version of web2py on wikipedia, so I've 
created new article and already translated about 70% of original english 
article.

If there are some other russian speakers in this group I welcome them to 
help and finish that article: https://ru.wikipedia.org/wiki/Web2py

Best,
DS

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Re: [web2py] calling download function page by ajax

[Limedrop]

Posted to soon.  To clarify, the cookies need to be set in your download 
function:

  {{view}}
  
response.files.append(URL('static','jquery.fileDownload/jquery.fileDownload.js'))
  
  
  {{controller}}
  response.js = 
'$.fileDownload("http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678";);'
  response.js += 
'$.fileDownload("http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678";);'
  
  
  {{download_func1}}
  # these cookies are required by jQuery.fileDownload.js
  # to enable download via ajax
  response.cookies['fileDownload'] = 'true'
  response.cookies['fileDownload']['path'] = "/"



On Wednesday, March 19, 2014 6:18:11 PM UTC+13, Limedrop wrote:
>
> You might want to look at 
> http://johnculviner.com/jquery-file-download-plugin-for-ajax-like-feature-rich-file-downloads/
>
> The only fiddly bit is to make sure you set the cookies correctly (see the 
> documentation for details).
>
> For example:
>
>   {{view}}
>   
> response.files.append(URL('static','js/jquery.fileDownload/jquery.fileDownload.js'))
>   
>   
>   {{controller}}
>   response.js = '$.fileDownload("
> http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678
> ");'
>   response.js += '$.fileDownload("
> http://127.0.0.1:8000/sgddms/label/download_func1?var1=2676&var1=2673&var1=2678
> ");'
>   # these cookies are required by jQuery.fileDownload.js
>   # to enable download via ajax
>   response.cookies['fileDownload'] = 'true'
>   response.cookies['fileDownload']['path'] = "/"
>
>
>
>
>
>
>

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[web2py] Re: Newby - what is "(**dict(form.vars))"

[shapovalovdenis]

hi! 
Don't worry it's pretty common question for newcomers :)

This is called Function Argument Packaging and Function Argument 
Unpackaging.

arguments could be packaged into list or dictionary:
* - position based arguments
** - name based arguments

>>> def f(*a, **b):
return a, b
>>> x, y = f(3, 'hello', c=4, test='world')
>>> print x
(3, 'hello')
>>> print y
{'c':4, 'test':'world'}

and vice versa, arguments could be extracted for functions


>>> def f(a, b):
return a + b
>>> c = (1, 2)
>>> print f(*c)
3

>>> def f(a, b):
return a + b
>>> c = {'a':1, 'b':2}
>>> print f(**c)
3






On Wednesday, March 19, 2014 7:06:31 AM UTC+2, Chops wrote:
>
> I am just learning Web2py
>
> I have an understanding of dict but now I find it used with two asterisks 
> before it and I can't seem to find an explanation!!
>
> Can it be used with anything other than a form? ((**dict(form.vars))?
>
> Can I use the two asterisks on other bits of code to server a common 
> purpose?
>
> Thanks in advance
>

-- 
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- http://web2py.com/book (Documentation)
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Re: [web2py] Re: Newby - what is "(**dict(form.vars))"

[Bruce Lamb]

Wow!! this is a bit mind bending - it will take some processing time!!

Really appreciate your VERY useful and quick response.



On 19 March 2014 16:27,  wrote:

> hi!
> Don't worry it's pretty common question for newcomers :)
>
> This is called Function Argument Packaging and Function Argument
> Unpackaging.
>
> arguments could be packaged into list or dictionary:
> * - position based arguments
> ** - name based arguments
>
> >>> def f(*a, **b):
> return a, b
> >>> x, y = f(3, 'hello', c=4, test='world')
> >>> print x
> (3, 'hello')
> >>> print y
> {'c':4, 'test':'world'}
>
> and vice versa, arguments could be extracted for functions
>
>
> >>> def f(a, b):
> return a + b
> >>> c = (1, 2)
> >>> print f(*c)
> 3
>
> >>> def f(a, b):
> return a + b
> >>> c = {'a':1, 'b':2}
> >>> print f(**c)
> 3
>
>
>
>
>
>
> On Wednesday, March 19, 2014 7:06:31 AM UTC+2, Chops wrote:
>>
>> I am just learning Web2py
>>
>> I have an understanding of dict but now I find it used with two asterisks
>> before it and I can't seem to find an explanation!!
>>
>> Can it be used with anything other than a form? ((**dict(form.vars))?
>>
>> Can I use the two asterisks on other bits of code to server a common
>> purpose?
>>
>> Thanks in advance
>>
>  --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
> ---
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[web2py] Database access without DAL but with connection pool

[tech . uz]

Dear Sirs,


I understand it's possible to use databases without DAL.
For example function in controller:

def values():
client = pymongo.MongoClient('localhost', 27017)
db = client.mybase
mytable = db["mytable"]
res = mytable.find()
.

return dict()

And of course it works.
But is it fast to connect/disconnect every time in function? What's about 
connection pool?
I consider connection pool could increase access to database. 

1. Actually I would like to ask how to access to database without DAL but 
at maximum speed?
2. Do I need connection pool for fast database access? (I think, yes.)
3. How could I build custom connection pool for database access without 
DAL? Or any solution to re-use connections to database server? Any examples?



Andrey A.

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