PyCharm file path separator

Question

I was evaluating PyCharm with one of my script and went into a problem directly at first line. In my script I do this:

filename =  './trial/{0}'.format(sys.argv[0].split('\\')[-1].replace(".py",""))

Splitting with "\\" worked everytime on the command prompt (I'm working on Windows)

If I run/debug in PyCharm the "\\" split doesn't work, I've seen the file is launched by the interpreter as:

"C:\Python26\python.exe C:/Users/nboldri/Desktop/..." 

so it gets as separator "/" and split function doesn't work with "\\"

Is there a way in PyCharm to pass the filepath to the interpreter in the windows format with backslash? I've searched but couldn't find anything in settings or internet.

Answer 1

You're getting the file name and removing the extension.

Use os.path.splitext, which returns the file path and its extension, and os.path.basename to get the filename:

import os
import sys

filename, extension = os.path.splitext(os.path.basename(sys.argv[0]))
trialname = './trial/{0}'.format(filename)

If this is used in lots of places in your code, replace it with a function:

def filename_with_no_extension(filepath):
    from os.path import splitext, basename        
    return splitext(basename(filepath))

Then:

import sys
trialname = './trial/{0}'.format(filename_with_no_extension(sys.argv[0])