File system

File system operations

Test

Action	Code	Details
File/dir exists	os.path.exists(path)
Is file	os.path.isfile(path)
Is empty file	os.path.getsize(path) == 0	Throws error if the file does not exist
Is directory	os.path.isdir(path)
Is empty directory	not os.listdir(path)

File handling

Action	Code	Details
Open temporary file with clean-up	with tempfile.NamedTemporaryFile() as file: path = file.name

File info

Action	Code	Details
Filename	os.path.basename(r'C:\Files\derp.csv')	Returns 'derp.csv'
Filename without extension	os.path.splitext(os.path.basename(r'C:\Files\derp.csv'))[0]	Returns 'derp'
File extension	os.path.splitext(r'C:\Files\derp.csv')[1]	Returns '.csv'
Parent directory name	os.path.basename(os.path.dirname((r'C:\Files\derp.csv'))	Returns 'Files'
File size	os.path.getsize(path)

Directory handling

Action	Code	Details
Create directory	os.mkdir(path)	Error when directory already exists
Create directory if missing	Path(path).mkdir(exist_ok=True)
Create directories, recursively	os.makedirs(dest_dir)
Create directories recursively if missing	os.makedirs(dest_dir, exist_ok=True)
Rename a directory	?
Delete directory and underlying files	shutil.rmtree(path)	Error if the path does not exist
Delete directory and underlying files, if needed	shutil.rmtree(path, ignore_error = True)

Info

Action	Code	Details
Number of children	?
Number of files	?
Number of child directories	?