Python pathlib make directories if they don’t exist
PythonPathlibPython Problem Overview
If I wanted to specify a path to save files to and make directories that don’t exist in that path, is it possible to do this using the pathlib library in one line of code?
Python Solutions
Solution 1 - Python
Yes, that is Path.mkdir:
pathlib.Path('/tmp/sub1/sub2').mkdir(parents=True, exist_ok=True)
From the docs:
> If parents is true, any missing parents of this path are created as
> needed; they are created with the default permissions without taking
> mode into account (mimicking the POSIX mkdir -p command).
>
> If parents is false (the default), a missing parent raises
> FileNotFoundError.
>
> If exist_ok is false (the default), FileExistsError is raised if the
> target directory already exists.
>
> If exist_ok is true, FileExistsError exceptions will be ignored (same
> behavior as the POSIX mkdir -p command), but only if the last path
> component is not an existing non-directory file.
Solution 2 - Python
This gives additional control for the case that the path is already there:
path = Path.cwd() / 'new' / 'hi' / 'there'
try:
path.mkdir(parents=True, exist_ok=False)
except FileExistsError:
print("Folder is already there")
else:
print("Folder was created")
Solution 3 - Python
Adding to Wim's answer. If your path has a file on the end that you do not want made as a directory.
ie. '/existing_dir/not_existing_dir/another_dir/a_file'
Then you use PurePath.parents. But the nice thing is that because Paths inherit the attributes of Pure Paths, then you can simply do
filepath = '/existing_dir/not_existing_dir/another_dir/a_file'
pathlib.Path(filepath).parents[0].mkdir(parents=True, exist_ok=True)