Python 101: Interactively learn how to program with Python 3/

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os.path and related functions

os.path and related functions

Python provides several methods to work with filesystem and directory paths

We'll cover the following...

os.path

The os.path sub-module of the os module has lots of great functionality built into it. We’ll be looking at the following functions:

  • basename
  • dirname
  • exists
  • isdir and isfile
  • join
  • split

There are lots of other functions in this sub-module. You are welcome to go read about them in the Python documentation, section 10.1.

os.path.basename

The basename function will return just the filename of a path. Here is an example:

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import os
print(os.path.basename(r'/usercode/test.txt'))
# 'test.txt'

I have found this useful whenever I need to use a filename for naming some related file, such as a log file. This happens a lot when I’m processing a data file.

os.path.dirname

The dirname ...