You can easily check that yourself using os.getcwd
:
>>> import os
>>> os.getcwd()
'C:\\Program Files\\Python33'
That’s on my Windows machine, so it’s probably the installation directory of Python itself.
You can change that directory at runtime using os.chdir
:
>>> os.chdir('C:\\Users\\poke\\Desktop\\')
>>> os.getcwd()
'C:\\Users\\poke\\Desktop'
>>> with open('someFile.txt', 'w+') as f:
f.write('This should be at C:\\Users\\poke\\Desktop\\someFile.txt now.')
This will—not surprisingly—create the file on my desktop.