> Also in your json example you are getting unicode both in py2 and py3
except py3 does not put the u'' in front of unicode strings because they
are default.
I've used type() to inspect the keys and values of the dictionary in py2
and py3:
*py2*
>>> map = pickle.load(open(path, 'rb'))
>>> first_key = list(map.keys())[0]
>>> print(type(first_key))
<type 'unicode'>
>>> print(type(map[first_key]))
<type 'unicode'>
*py3*
>>> map = pickle.load(open(path, 'rb'))
>>> first_key = list(map.keys())[0]
>>> print(type(first_key))
<class 'str'>
>>> print(type(map[first_key]))
<class 'str'>
Notice in python3 it says "class" not "type" and it is str, while on
python2 it says unicode :/
Anyway, I don't pretend to bother with this issue unrelated to web2py.
My goal is to be able to read/write the dicti to a .pkl file with py2 and
py3, so I'll keep testing and I'll post the solution here if I find it :)
El viernes, 11 de octubre de 2019, 2:52:35 (UTC-3), Massimo Di Pierro
escribió:
>
> I am puzzled by this too. The error is not in web2py code. The error is in
> the string.py module.
> Also in your json example you are getting unicode both in py2 and py3
> except py3 does not put the u'' in front of unicode strings because they
> are default.
>
> On Thursday, 10 October 2019 18:05:55 UTC-7, Lisandro wrote:
>>
>> I've found the issue, it's not web2py related, sorry about that.
>>
>> My web2py instance has several applications running, each one is attached
>> to a domain.
>> I store a the map of domains:apps in a dictionary that I save to a .pkl
>> file.
>> Then my routes.py reads that file and loads the map of domains:apps
>>
>> I write the .pkl file like this:
>>
>> with open('map.pkl', 'wb') as file:
>> pickle.dump(dictionary_map, file, protocol=2)
>>
>> Notice I use protocol=2 because I want to be able to read/write the file
>> with python 2 and 3.
>>
>> In my routes.py I read the file like this:
>>
>> map = pickle.load(open('domains_apps.pkl', 'rb'))
>>
>> routers = dict(
>> BASE=dict(
>> default_controller='default',
>> default_function='index',
>> domains=map,
>> map_static=True,
>> exclusive_domain=True,
>> )
>> )
>>
>>
>>
>> However, after writing .pkl the file with python 3 and returning to
>> python 2, my applications fail with the error reported in my first message.
>> The error goes away if I replace the .pkl file with an old backup I had
>> made before using python 2.
>>
>> I have noticed that once the .pkl file is written with python 3, then
>> reading it with python 2 and 3 throws different results:
>>
>> *with python 3*:
>> >>> r = pickle.load(open('domains_apps.pkl', 'rb'))
>> >>> print(r)
>> {'prod.com': 'prod', 'test.com': 'test'}
>>
>>
>> *with python 2*:
>> >>> r = pickle.load(open('domains_apps.pkl', 'rb'))
>> >>> print(r)
>> {*u*'prod.com': *u*'prod', *u*'test.com': *u*'test'}
>>
>>
>> Notice that in python 2 reading the .pkl file (that was written with
>> python 3 using protocol=2) returns unicode strings. This doesn't happen in
>> python 3. But i'm not sure what protocol to use.
>>
>> I'll do some more tests and I'll post here whatever solution I can find.
>> Thanks for your time!
>> Regards,
>> Lisandro.
>>
>>
>>
>>
>>
>> El jueves, 10 de octubre de 2019, 21:21:53 (UTC-3), Dave S escribió:
>>>
>>> Delete all the .pyc files?
>>>
>>>
>>> /dps
>>>
>>
--
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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