[Python-Dev] Python 3 as a Default in Linux Distros

Maciej Fijalkowski fijall at gmail.com
Thu Jul 25 11:45:10 CEST 2013


On Wed, Jul 24, 2013 at 7:22 PM, Laurent Gautier <lgautier at gmail.com> wrote:
> On 07/24/2013 06:30 PM, Chris Angelico wrote:
>>
>> On Thu, Jul 25, 2013 at 2:21 AM, Laurent Gautier <lgautier at gmail.com>
>> wrote:
>>>
>>> - errors that are typical of "Python 2 script running with Python
>>> 3"-specific are probably limited (e.g., use of unicode, use of xrange,
>>> etc...)
>>>
>> The most common, in interactive scripts at least, is likely to be:
>>
>>>>> print "Hello, world!"
>>
>> SyntaxError: invalid syntax
>>
>> How helpful it's possible to make that one, I don't know. Is it safe
>> to presume that it's more likely a syntax error will come from an
>> interpreter version mismatch than a code bug?
>
>
> The wrapper in /usr/bin/python:
> - could use what is in 2to3. I think that most of the cases are solved
> there.
> - whenever interactive, could have an intermediate layer between the input
> in the console and execution.

So you suggest that instead of a clear SyntaxError you should end up
with a confusing error (something has no attribute xyz or so) after a
while (if say somone tries to load twisted via 2to3).


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