os.path.isfile

[Steve D'Aprano]

On Sat, 11 Feb 2017 06:50 am, Vincent Vande Vyvre wrote:

> Le 10/02/17 à 19:11, eproser at gmail.com a écrit :
>> Hello NG
>>
>> Python 3.5.2
>>
>> Windows 10
>>
>> os.path.isfile() no recognise file with double dot?
>>
>> eg. match.cpython-35.pyc
>>
>> Please somebody know something about that?
>>
>> Thank You in advance
>>
> Interesting, you're right.
> 
> Python 3.4.3 (default, Nov 17 2016, 01:08:31)
> [GCC 4.8.4] on linux
> Type "help", "copyright", "credits" or "license" for more information.
>  >>> import os
>  >>> 
>
os.path.isfile('/home/vincent/oqapy-3/trunk/__pycache__/grid.cpython-34.pyc
> ')
> False
> 
> 
> Why ?


How do you know that file exists?

Why choose such a long file name where you risk introducing spaces or
newlines due to word-wrapping?


I cannot replicate your result using Python 3.5 on Linux:


py> path = '/tmp/spam.eggs.cheese.txt'
py> with open(path, 'w') as f:
...     f.write('something')
...
9
py> import os
py> print(os.path.isfile(path))
True


I expect that you have a space at the end of the file name:

'/home/vincent/oqapy-3/trunk/__pycache__/grid.cpython-34.pyc '

instead of 

'/home/vincent/oqapy-3/trunk/__pycache__/grid.cpython-34.pyc'


-- 
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.