[Tutor] odd behavior when renaming a file

[Joel Goldstick]

On Wed, May 9, 2012 at 5:21 PM, Peter Otten <__peter__ at web.de> wrote:
> Joel Goldstick wrote:
>
>> import os
>> def pre_process():
>>     if os.path.isfile('revelex.csv'):
>>         os.rename('revelex.csv', 'revelex.tmp')
>>         print "Renamed ok"
>>     else:
>>         print "Exiting, no revelex.csv file available"
>>         exit()
>>     out_file = open('revelex.csv', 'w')
>>     # etc.
>>
>> if __name__ == '__main__':
>>     pre_process()
>>
>>
>> When I run the code above it works file if run from the file.  But
>> when I import it and run it from another file it renames the file but
>> then prints "Exiting, no revelex.csv file available"
>
> Add
>
> print os.getcwd()
>
> to your code, you are probably in the wrong directory.
>
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Thanks for the hint.  I am in the right directory, but I failed to
notice that I renamed the file before I entered my function.
Funny how a night of sleep can make dumb mistakes pop out.

-- 
Joel Goldstick