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Thu Jun 19 21:39:20 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-June/135126.html

Le 15/06/2014 05:15, Steve Dower a écrit :
> So is exec(tokenize.open(file).read()) the actual replacement for
> execfile()? Not too bad, but still not obvious (or widely promoted - I'd
> never heard of it).
>
Another way is to open the file in binary, then exec() checks itself if 
an encoding is defined in the file. This is what is used in spyder:

exec(open(file, 'rb').read())

Here is the discussion for reference: 
https://bitbucket.org/spyder-ide/spyderlib/pull-request/3/execution-on-current-spyder-interpreter/diff

This behavior is not indicated in the documentation but is somehow 
confirmed on stackoverflow: 
http://stackoverflow.com/questions/6357361/alternative-to-execfile-in-python-3-2/6357418?noredirect=1#comment30467918_6357418

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Showing content from https://mail.python.org/pipermail/python-dev/2014-June/135126.html below:

[Python-Dev] Criticism of execfile() removal in Python3