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Creating Directories Safely in Python: Handling Missing Parent Paths with OSError
Question:
How can I create a directory at a provided location and ensure any missing parent directories are also created using OSError? For instance, I want it to work as this Bash command:
mkdir -p /custom/path/to/folder
Answer:
One approach would involve handling OSError and examining the associated error code :
import os
import errno
def create_directory(path):
try:
os.makedirs(path)
except OSError as error:
if error.errno != errno.EEXIST:
raise
Overall, this code snippet is a simple function that creates a directory at the specified path while handling the case where the directory already exists. It ensures that no error is raised when the directory already exists, but it will raise other errors for any unexpected issues during the directory creation process.
Alternatively, modern Python versions offer improvements to this code, introducing FileExistsError (available in Python 3.3+):
try:Additionally, starting from Python 3.2, you can use the exist_ok keyword argument with os.makedirs:
os.makedirs("custom/path/to/folder")
except FileExistsError:
# The directory already exists; no need to take further action
pass
os.makedirs("custom/path/to/folder", exist_ok=True)
# This will succeed even if the directory already exists.
When exist_ok is set to True, the function will not raise an exception if the specified directory already exists. Instead, it will silently complete without doing anything.
I hope it helps you!