https://github.com/dluman/arglite
A light-weight Python CLI flag parser for the impatient.
https://github.com/dluman/arglite
argparse-alternative argument-parser argument-parsing cli-argument-parser cli-arguments
Last synced: about 1 month ago
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A light-weight Python CLI flag parser for the impatient.
- Host: GitHub
- URL: https://github.com/dluman/arglite
- Owner: dluman
- License: unlicense
- Created: 2022-08-02T16:58:52.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2025-04-01T00:55:05.000Z (about 2 months ago)
- Last Synced: 2025-04-01T01:49:03.850Z (about 2 months ago)
- Topics: argparse-alternative, argument-parser, argument-parsing, cli-argument-parser, cli-arguments
- Language: Python
- Homepage: https://pypi.org/project/arglite/
- Size: 29.3 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# arglite
[](https://pypi.org/project/arglite/)
A lightweight, dynamic argument parsing library for Python programs with klugy support for typing variables.
I made this for a teaching machine project I'm working on (I needed a custom argument parser for _reasons_),
and I'm always too impatient to use `argparse`.
## Installation
Find this tool on `PyPI`: `pip install arglite`
## Usage
Check this out:
```python
import arglite
def main():
# Can include explicit requirement
print(arglite.parser.required.a)
# Can be an implicit requirement
print(arglite.parser.b)
# Can also be purely optional
print(arglite.parser.optional.c)
print(arglite.parser.optional.d)
if __name__ == "__main__":
main()
```
Run using `python main.py -a Yo --b that is -c`.
For the more intrepid among us, this also works:
```python
from arglite import parser as cliarg
def main():
# Can include explicit requirement
print(cliarg.required.a)
# Can be an implicit requirement
print(cliarg.b)
# Can also be purely optional
print(cliarg.optional.c)
print(cliarg.optional.d)
if __name__ == "__main__":
main()
```
### HELP!
Help now appears when no variables are provided or when requested by use of `-h` (`--h`) or `-help` (`--help`).
### Errors
When errors are present (i.e. flags are provided which aren't used in the code _or_ flags used aren't provided),
you'll see errors:
```
✗ ERROR: A value was provided for A, but the program doesn't call for it
✗ ERROR: A value was expected for a, but not was provided as a flag
✗ ERROR: A value was expected for b, but not was provided as a flag
```
## Notes
* Flags with no value are automatically converted to `True` boolean
* The module uses `ast.literal_eval`, so `"{'a':'b'}"` will convert to a `dict` (all quotes required)