functools.wraps does not play nice with doc tests?
Hello,
So, I know this topic comes up a lot, but I haven't been able to find any
discussion on this particular twist on the topic. Perhaps someone has some
insight.
So, I have a function, which is decorated. In order for the doctest test finder
to find the doc tests in the decorated function, my wrapper needs to use the
functools.wraps decorator inside it. So far so good. *However*, the issue is
that if the decorator and the decorated function are defined in different
modules, and the decorator is defined at a greater line number in its module
than the decorated function in its module, and the doc test fails, the test
report lists the failure as occurring at an "unknown line number". This is a
problem if you have additional logic built on top of the reporting that relies
on line numbers of test failures (and even more fundamentally, it's a pain to
manually find which test actually failed).
Here is a specific example, this is running Python 2.7.9, in case that matters.
File decorator.py
1 import functools
2
3
4
5
6
7
8
9 # The decorator has to be defined at a line number greater than the
10 # decorated function in order to trigger the bug.
11 def decorator(func):
12 @functools.wraps(func)
13 def wrapper(*args, **kwargs):
14 print('In Wrapper!')
15 return func(*args, **kwargs)
16 return wrapper
File decorated.py
1 from . import decorator
2
3
4 @decorator.decorator
5 def my_func():
6 '''
7 >>> my_func()
8 '''
9 print('my_func!')
10
11
12 if __name__ == '__main__':
13 import doctest
14 doctest.testmod()
Now, let's try to run the tests:
> python -m decorated
**
File ".../decorated.py", line ?, in __main__.my_func
Failed example:
my_func()
Expected nothing
Got:
In Wrapper!
my_func!
**
1 items had failures:
1 of 1 in __main__.my_func
***Test Failed*** 1 failures.
So, the test ran, and failed as we wanted, but the line number was not detected
correctly. Has anyone run into this issue, and/or know a workaround? Or perhaps
I am missing something obvious here?
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SQLite or files?
Hello, I'm a novice in Python and got one question related to the information storage for my application. I'm currently working on rewriting my own the program that stores everyday information sitting in the system tray. It was written in Delphi some time ago and proved to be durable and fast enough. All the info was stored in the simple RTF files. However now I'd like to rewrite this program in Python (using PyQt) as I want to make it cross-platform and add/remove some features. Now I'm thinking about where to store my information. Would it be better to use files as I used to do or use the database, SQLite in particular? What will be faster and more flexible in the long run? This application will be in the memory most of the time so I'm also concerned about memory usage. If anyone has any experience of comparison these two approaches please help. Thanks, Vlad -- http://mail.python.org/mailman/listinfo/python-list
sys.tracebacklimit
Colleagues, Per documentation at http://docs.python.org/py3k/library/sys.html#sys.tracebacklimit : When [sys.tracebacklimit] set to 0 or less, all traceback information is suppressed and only the exception type and value are printed So, I expect to be able to have a program like: import sys sys.tracebacklimit=0 print(1/0) And see it's result as: ZeroDivisionError: division by zero However, the actual result is: Traceback (most recent call last): File "tbt.py", line 3, in print(1/0) ZeroDivisionError: division by zero Do I misunderstand the docs? Thank you! Vlad This e-mail and its attachments are intended only for the individual or entity to whom it is addressed and may contain information that is confidential, privileged, inside information, or subject to other restrictions on use or disclosure. Any unauthorized use, dissemination or copying of this transmission or the information in it is prohibited and may be unlawful. If you have received this transmission in error, please notify the sender immediately by return e-mail, and permanently delete or destroy this e-mail, any attachments, and all copies (digital or paper). Unless expressly stated in this e-mail, nothing in this message should be construed as a digital or electronic signature. -- http://mail.python.org/mailman/listinfo/python-list
Getting and Setting Cookies
Hello, I am trying to use cookies and Python to create a simple login example. But I am very disoriented at the existence of two cookie libraries, namely Cookie and cookielib. I have seen examples of setting cookies (although I am still not sure about timestamps and cookie lifespan), but no reference to getting the currently set cookies. For instance, I want to see if there is any 'user' value, to check whether the user has logged in. Please, enlighten me. Thanks in advance, Vlad -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting and Setting Cookies
John J. Lee wrote: > "Vlad Dogaru" <[EMAIL PROTECTED]> writes: > > > I am trying to use cookies and Python to create a simple login example. > > But I am very disoriented at the existence of two cookie libraries, > > namely Cookie and cookielib. I have seen examples of setting cookies > [...] > > From the cookielib docs: > > http://docs.python.org/lib/module-cookielib.html > > | The cookielib module defines classes for automatic handling of HTTP > | cookies. It is useful for accessing web sites that require small > | pieces of data - cookies - to be set on the client machine by an HTTP > | response from a web server, and then returned to the server in later > | HTTP requests. > > (note the *accessing* there) > > [...] > > | Module Cookie: HTTP cookie classes, principally useful for server-side > | code. The cookielib and Cookie modules do not depend on each > | other. > > > Module cookielib is for web client code (writing code that works like > a browser). Module Cookie is for server-side code (writing code to > make a web site work). You don't make it entirely clear which you're > doing, but it sounds like the latter. I am trying to write a simple login script. I understand (or rather I think I understand) how to set a cookie with the Cookie module. My problem is getting the cookies that are currently set. How can I do that? -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting and Setting Cookies
John J. Lee wrote: > "Vlad Dogaru" <[EMAIL PROTECTED]> writes: > [...] > > I am trying to write a simple login script. I understand (or rather I > > think I understand) how to set a cookie with the Cookie module. My > > problem is getting the cookies that are currently set. How can I do > > that? > > You still haven't explicitly said that you're writing server-side > code. If you are: > > IIRC, you .load() it from the HTTP header value, then you use it as a > mapping (though, oddly, that seems undocumented, except in the > "Example" section of the docs). A working CGI-based example (written > in a rather retro style for ease of deployment): > > http://codespeak.net/svn/wwwsearch/ClientCookie/trunk/cookietest.cgi > > > If you want to iterate over all cookies using module Cookie (that > script does not), use .keys(), .values() or .items() on your > SimpleCookie instance (it's also a little odd that instances of class > SimpleCookie do not represent a single cookie, but a collection of > cookies). That's pretty much what I was trying to find out. Thanks for the pointer. Vlad -- http://mail.python.org/mailman/listinfo/python-list
Session implementation for Python
Hello, is there any PHP-like implementation for sessions in Python? I fear that writing my own would be seriously insecure, besides I could actually learn a lot by inspecting the code. The reason I am asking is that I would like to implement simple scripts which require login with CGI (no mod_python or Django -- I want to learn CGI first). Thanks in advance, Vlad -- There is nothing more dangerous than an idea when it is the only one you have. -- http://mail.python.org/mailman/listinfo/python-list
Re: Session implementation for Python
Bruno Desthuilliers wrote: > Vlad Dogaru wrote: > > Hello, > > > > is there any PHP-like implementation for sessions in Python? I fear > > that writing my own would be seriously insecure, besides I could > > actually learn a lot by inspecting the code. > > > > The reason I am asking is that I would like to implement simple scripts > > which require login with CGI (no mod_python or Django -- I want to > > learn CGI first). > > http://jonpy.sourceforge.net/ Exactly what I was looking for. Thanks a bunch. Vlad -- http://mail.python.org/mailman/listinfo/python-list
BaseHTTPServer - getting POST parameters
Hello, After experimenting for a while, I am still not able to find where the POST data is in the BaseHTTPRequestHandler class. I am trying to write a very simple HTTP server for a project of mine and I need to get the POST data. Certainly I am missing something, as it is a comon task. Thanks in advance, Vlad -- http://mail.python.org/mailman/listinfo/python-list
Using Python as a web scripting language
Hello everyone,I am learning Python and have heard it can be used similarly to PHP for web scripting. Because I find the latter not entirely to my liking, I would like to use Python. How should I configure my web server, what do I need, where should I start at, etc. I realise this sort of question pops up regularly, so just give me a starting point and I'll work my way from there (hopefully). Thanks in advance,Vlad Dogaru--If I have somehow managed to break some sort of rules, either etiquette or English, by all means educate me. -- http://mail.python.org/mailman/listinfo/python-list
Python CGI Scripting Documentation
Hello, I would like to learn web scripting with Python (sure, everyone uses PHP, but I don't like the syntax and Python is more general-purpose and... well, I guess you people know the advantages better than me). Where can I get a thorough introduction to both CGI and using Python for CGI? That includes installing my own web server (at home, for testing) and starting from scratch (by that I mean I have near null experience with CGI). I have tried looking through the source code of MoinMoin, but it's just too advanced for me -- I simply don't know where to start. Right now, I'll take any and all suggestions. However, please suggest books or articles that are up-to-date on Python programming; I'd hate to see that I'm studying obsolete texts or the like. Thanks in advance, Vlad -- If I make any mistake, be it regarding English or Usenet, do point it out to me. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Python CGI Scripting Documentation
Hello, I would like to learn web scripting with Python (sure, everyone uses PHP, but I don't like the syntax and Python is more general-purpose and... well, I guess you people know the advantages better than me). Where can I get a thorough introduction to both CGI and using Python for CGI? That includes installing my own web server (at home, for testing) and starting from scratch (by that I mean I have near null experience with CGI). I have tried looking through the source code of MoinMoin, but it's just too advanced for me -- I simply don't know where to start. Right now, I'll take any and all suggestions. However, please suggest books or articles that are up-to-date on Python programming; I'd hate to see that I'm studying obsolete texts or the like. Thanks in advance, Vlad -- If I make any mistake, be it regarding English or Usenet, do point it out to me. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python CGI Scripting Documentation
Alex Martelli wrote: Wow, I'm new in the field, but even I know your name. It's truly inspiring to be aswered to by you. Thank you, all of you, for your suggestions. I will try to look into the matter using the starting points you've given me, as well as read more about Django. Thanks, Vlad. -- http://mail.python.org/mailman/listinfo/python-list
Control-C alternative in Windows
Hello, I've written a simple, standalone wiki server in Python. It runs a BaseHTTPServer's serve_forever() method until a KeyboardInterrupt is caught, at which point it writes changes to a file and exits. This works as expected in Linux. However, in Windows I cannot stop the script with Control-C. I've only been able to stop it with Ctrl-Break, which does not send KeyboardInterrupt. This means no saving to the file and effectively a useless script. Any ideas as to how I might make this work in Windows? Thanks in advance, Vlad -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert String to list of chars
On Jan 27, 9:18 am, Neil Cerutti <[EMAIL PROTECTED]> wrote:
> On 2007-01-27, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> > How can I convert a string to a char list?
> > for example
>
> > "hello" --> ['h','e','l','l','o']
>
> > I have been searching but I can't find my answers
> list("hello")
Wow, I've been using [c for c in 'hello'] for as long as I can remember
needing it. Thanks!
Vlad
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Graphical Engine
Hi, A few friends and myself were thinking of writing a graphical engine based on OpenGL. Does Python have the required speed for that task? Are there any examples out there of open-source engines which we can look at? A Google search yielded no interesting results, but then again I'm probably missing something. Vlad -- Lisp is to emacs what sex is to STDs. -- http://mail.python.org/mailman/listinfo/python-list
Re: Graphical Engine
Karlo Lozovina wrote: > Vlad Dogaru wrote: > >> A few friends and myself were thinking of writing a graphical engine >> based on OpenGL. Does Python have the required speed for that task? Are >> there any examples out there of open-source engines which we can look >> at? A Google search yielded no interesting results, but then again I'm >> probably missing something. > > http://www.ogre3d.org/wiki/index.php/PyOgre > Ogre is nice at a glance, but we are looking to write our own engine. I realise it's deplicating effort, but we're looking to learn. Vlad -- Lisp is to emacs what sex is to STDs. -- http://mail.python.org/mailman/listinfo/python-list
