Python 3 cheatsheet
First written on July 14, 2020
Last updated on October 8, 2022
Table of contents #
Introduction #
This is a list of instructions I use frequently in:
pathlib #
Files #
| Description | Code | Imports |
|---|
| new file | pathlib.Path(shlex.quote(path: str)).touch(0o700, exist_ok=True) | import pathlib, shlex |
| remove file | pathlib.Path(shlex.quote(path: str)).unlink(missing_ok=True) | import pathlib, shlex |
| new directory | pathlib.Path(shlex.quote(path: str)).mkdir(mode=0o700, parents=True, exist_ok=True) | import pathlib, shlex |
Paths #
| Description | Code | Imports |
|---|
| get last path component from url | pathlib.Path(urllib.parse.urlsplit(url: str).path).name | import pathlib, urllib |
| get relative path | pathlib.Path(shlex.quote(path: str)).name | import pathlib, shlex |
| get full path | str(pathlib.Path(shlex.quote(directory: str), shlex.quote(file: str))) | import pathlib, shlex |
| remove file extension | pathlib.Path(shlex.quote(path: str)).stem | import pathlib, shlex |
| get file extension | pathlib.Path(shlex.quote(path: str)).suffix | import pathlib, shlex |
| get the path of a configuration file | configuration_file = shlex.quote(sys.argv[1]) | import shlex, sys |
PyYAML #
| Description | Code | Imports |
|---|
| load a YAML file | config = yaml.load(open(file: str, 'r'), Loader=yaml.SafeLoader) | import yaml |