[Pythonmac-SIG] Pythonmac-SIG Digest, Vol 93, Issue 5

[Dan Ross]

Hey Aahz-

Just thought I'd try porting a little utility from 2.7 to 3.1 for kicks.


On Jan 8, 2011, at 5:00 AM, pythonmac-sig-request at python.org wrote:

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> Today's Topics:
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>   1. Py2app/Python 3.1 error (Dan Ross)
>   2. Re: Py2app/Python 3.1 error (Aahz)
> 
> From: "Dan Ross" <dan at rosspixelworks.com>
> Date: January 7, 2011 9:12:59 AM CST
> To: "Pythonmac-sig" <pythonmac-sig at python.org>
> Subject: [Pythonmac-SIG] Py2app/Python 3.1 error
> Reply-To: dan at rosspixelworks.com
> 
> 
> Has anyone seen this before?
> 
> Traceback (most recent call last):
>   File "setup.py", line 18, in <module>
>     setup_requires=['py2app'],
>   File
> "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/distutils/core.py",
> line 110, in setup
>     _setup_distribution = dist = klass(attrs)
>   File
> "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/setuptools/dist.py",
> 
> line 225, in __init__
>     _Distribution.__init__(self,attrs)
>   File
> "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/distutils/dist.py",
> line 263, in __init__
>     self.finalize_options()
>   File
> "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/setuptools/dist.py",
> 
> line 258, in finalize_options
>     ep.load()(self, ep.name, value)
>   File
> "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/pkg_resources.py",
> 
> line 1954, in load
>     entry = __import__(self.module_name, globals(),globals(),
> ['__name__'])
>   File
> "/Users/danr/.local/lib/python3.1/site-packages/py2app/build_app.py",
> line 28, in <module>
>     from modulegraph.find_modules import find_modules, parse_mf_results
>   File
> "/Users/danr/.local/lib/python3.1/site-packages/modulegraph/find_modules.py",
> line 21, in <module>
>     from . import modulegraph
>   File
> "/Users/danr/.local/lib/python3.1/site-packages/modulegraph/modulegraph.py",
> line 31, in <module>
>     from . import util
>   File
> "/Users/danr/.local/lib/python3.1/site-packages/modulegraph/util.py",
> line 69, in <module>
>     cookie_re = re.compile(B("coding[:=]\s*([-\w.]+)"))
>   File
> "/Users/danr/.local/lib/python3.1/site-packages/modulegraph/compat.py",
> line 12, in B
>     return value.decode('latin1')
> AttributeError: 'str' object has no attribute 'decode'
> 
> It's a simple little app using tkinter.
> 
> I'm using ActiveState's Python 3.1 if that makes a difference.
> 
> Thanks,
> 
> Dan
> 
> 
> 
> 
> 
> 
> 
> From: Aahz <aahz at pythoncraft.com>
> Date: January 7, 2011 12:03:08 PM CST
> To: Pythonmac-sig <pythonmac-sig at python.org>
> Subject: Re: [Pythonmac-SIG] Py2app/Python 3.1 error
> 
> 
> On Fri, Jan 07, 2011, Dan Ross wrote:
>> 
>> Has anyone seen this before?
> 
> No, but I can provide a clue...
> 
>>   File
>> "/Users/danr/.local/lib/python3.1/site-packages/modulegraph/compat.py",
>> line 12, in B
>>     return value.decode('latin1')
>> AttributeError: 'str' object has no attribute 'decode'
>> 
>> It's a simple little app using tkinter.
> 
> Python 3.1 strings don't have a decode method, so this is almost
> certainly legacy code from Python 2.x that's trying to get from string to
> unicode instead of going from bytes to string.
> 
> Python 3.1.2 (r312:79147, Mar 29 2010, 18:34:41) 
>>>> ''.decode
> Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
> AttributeError: 'str' object has no attribute 'decode'
>>>> b''.decode
> <built-in method decode of bytes object at 0xbb5399f8>
> 
> Any particular reason you're using 3.1 instead of 2.7?
> -- 
> Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/
> 
> "Think of it as evolution in action."  --Tony Rand
> 
> 
> 
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