$ python --version
Python 2.6.6
On Fri, Sep 30, 2011 at 12:18 PM, Chris Angelico <ros...@gmail.com> wrote:
> On Fri, Sep 30, 2011 at 7:10 PM, Ovidiu Deac <ovidiud...@gmail.com> wrote:
>> I have the following regexp which fails to compile. Can somebody explain why?
>>
>>>>> re.compile(r"""^(?: [^y]* )*""", re.X)
>> Traceback (most recent call last):
>> File "<stdin>", line 1, in <module>
>> File "/usr/lib/python2.6/re.py", line 190, in compile
>> return _compile(pattern, flags)
>> File "/usr/lib/python2.6/re.py", line 245, in _compile
>> raise error, v # invalid expression
>> sre_constants.error: nothing to repeat
>>
>> Is this a bug or a feature?
>
> What version of Python are you using? It looks like you're running in
> a Python 3 interpreter, and loading a Python 2 module (as shown by the
> python2.6 in the path and the Python 2 error-raise syntax). You may
> have a problem with your module path.
>
> Running that line of code in Python 3.2 for Windows produces this error:
>
>>>> re.compile(r"""^(?: [^y]* )*""", re.X)
> Traceback (most recent call last):
> File "<pyshell#465>", line 1, in <module>
> re.compile(r"""^(?: [^y]* )*""", re.X)
> File "C:\Python32\lib\re.py", line 206, in compile
> return _compile(pattern, flags)
> File "C:\Python32\lib\re.py", line 256, in _compile
> return _compile_typed(type(pattern), pattern, flags)
> File "C:\Python32\lib\functools.py", line 180, in wrapper
> result = user_function(*args, **kwds)
> File "C:\Python32\lib\re.py", line 268, in _compile_typed
> return sre_compile.compile(pattern, flags)
> File "C:\Python32\lib\sre_compile.py", line 495, in compile
> code = _code(p, flags)
> File "C:\Python32\lib\sre_compile.py", line 480, in _code
> _compile(code, p.data, flags)
> File "C:\Python32\lib\sre_compile.py", line 74, in _compile
> elif _simple(av) and op is not REPEAT:
> File "C:\Python32\lib\sre_compile.py", line 359, in _simple
> raise error("nothing to repeat")
> sre_constants.error: nothing to repeat
>
> Does that help at all?
>
> ChrisA
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