If you are searching how to safely create a nested directory in Python, use the following example code:
1 2 | from pathlib import Path Path("/my/directory").mkdir(parents=True, exist_ok=True) |
For older versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it:
Try os.path.exists, and consider os.makedirs for the creation.
1 2 3 | import os if not os.path.exists(directory): os.makedirs(directory) |
As noted in comments and elsewhere, there’s a race condition – if the directory is created between the os.path.exists and the os.makedirs calls, the os.makedirs will fail with an OSError. Unfortunately, blanket-catching OSError and continuing is not foolproof, as it will ignore a failure to create the directory due to other factors, such as insufficient permissions, full disk, etc.
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