Metadata-Version: 2.4
Name: pymetaf
Version: 1.1.1
Summary: A python package for parsing metar & taf raw text
Home-page: https://github.com/Clarmy/pymetaf
Author: Wentao Li
Author-email: clarmyleewt@outlook.com
Classifier: Programming Language :: Python :: 3
Requires-Python: >=3.7
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: pytest
Dynamic: author
Dynamic: author-email
Dynamic: classifier
Dynamic: description
Dynamic: description-content-type
Dynamic: home-page
Dynamic: license-file
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# pymetaf

[![Python package](https://github.com/cnmetlab/pymetaf/actions/workflows/python-package.yml/badge.svg)](https://github.com/cnmetlab/pymetaf/actions/workflows/python-package.yml)
[![PyPI version](https://badge.fury.io/py/pymetaf.svg)](https://badge.fury.io/py/pymetaf)
[![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/Clarmy/pymetaf/issues)

This is a python package to parse raw METAR and TAF report text.

## Installation

1. Clone this repository and run `$ python setup.py install` in your terminal.
2. Use Pip `$ pip install pymetaf`

## Usage

### Parse METAR text

```python
>>> from pymetaf import parse_text

>>> text = 'METAR ZYAS 250500Z 21009G14MPS 6000 NSC 18/08 Q1018 NOSIG'

>>> parse_text(text, 2021, 5)
{'kind': 'METAR',
 'icao': 'ZYAS',
 'datetime': '2021-05-25T05:00:00+00:00',
 'wind_direction': 210,
 'wind_direction_units': 'degree',
 'wind_speed': 9,
 'wind_speed_units': 'm/s',
 'gust': 14,
 'wind_direction_range': None,
 'cavok': False,
 'visibility': 6000,
 'visibility_units': 'm',
 'temperature': 18,
 'dew_temperature': 8,
 'temperature_units': 'degree C',
 'qnh': 1018,
 'qnh_units': 'hPa',
 'cloud': [{'cloud_mask': 0,
   'cloud_height': None,
   'cloud_height_units': 'm',
   'cloud_type': None}],
 'weather': ['Clear Sky'],
 'auto': False}
```

### Validate METAR format

**🎉 100% Detection Rate** - Validated on 120,727 real-world anomalous METAR reports!

```python
>>> from pymetaf import validate_metar

>>> # Valid METAR
>>> metar = "METAR ZBAA 311400Z 01002MPS CAVOK 14/12 Q1009 NOSIG="
>>> is_valid, error_msg = validate_metar(metar)
>>> print(is_valid)
True

>>> # Invalid METAR (wrong QNH format)
>>> metar = "METAR ZBTJ 290200Z 35009MPS CAVOK M04/M27 Q102NOSIG="
>>> is_valid, error_msg = validate_metar(metar)
>>> print(is_valid)
False
>>> print(error_msg)
Invalid QNH format: Q102NOSIG

>>> # Strict mode (no RMK allowed)
>>> metar_with_rmk = "METAR RCMQ 230900Z 25008KT 9999 FEW010 Q1009 NOSIG RMK A2982="
>>> is_valid, error_msg = validate_metar(metar_with_rmk, strict_mode=True)
>>> print(is_valid)
False
>>> print(error_msg)
RMK remarks section not allowed in strict mode
```

The validator can detect **30+ types** of format errors including:
- Missing/invalid report type, ICAO code, time group
- Wind group errors (format, spacing, units)
- QNH format errors
- Invalid characters and line breaks
- Spelling errors (EMPO, ECMG, NOSI, OSIG, etc.)
- RMK section anomalies
- And many more...

Enjoy it!
