---
id: lat-lon-parser
version: "1.3.1"
license: CC0 1.0 Universal
license_treatment: permissive
maintenance: dormant
---

# lat-lon-parser — Simple parser for latitude-longitude strings

License: permissive · Maintenance: dormant · Downloads: 138.6K/mo

## What it is and what it does

lat-lon-parser is a lightweight coordinate parsing library that converts latitude-longitude strings from various textual formats into decimal degrees. It handles formats ranging from simple decimal notation (23.43) to complex degree-minute-second strings with cardinal directions (23° 25' 48.0" North), using a straightforward pattern-matching algorithm that assumes degrees, minutes, and seconds appear in sequence with optional quadrant indicators.

The package also provides conversion functions to transform between coordinate representations—converting decimal degrees to degree-minute or degree-minute-second tuples, and formatting coordinates as strings in different notations. It requires Python 3.9 or later and has no external dependencies, making it a self-contained utility suitable for GIS applications, data processing pipelines, or any tool that needs to normalize coordinate input from multiple sources.

Use it for:

- Parse user-supplied coordinate strings in web forms or APIs that accept multiple coordinate formats
- Normalize latitude-longitude data from diverse sources (GPS devices, maps, user input) into a standard decimal format
- Convert between coordinate representations for display or storage (e.g., show degrees-minutes-seconds to users, store as decimal)
- Process geographic datasets in pandas DataFrames where coordinate columns contain mixed or non-standard formats
- Build GIS tools or mapping applications that accept coordinates in human-readable degree-minute-second notation

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Parses latitude-longitude coordinate strings in multiple formats (decimal degrees, degrees-minutes, degrees-minutes-seconds) and converts between them.

Yes, if you need lightweight coordinate parsing without external dependencies. The package is stable, permissively licensed, and solves a specific problem well. However, dormant maintenance (no active development) means you should verify it handles your specific coordinate formats before relying on it in production; consider it a utility library rather than an actively supported tool.

## Install

pip install lat-lon-parser
uv add lat-lon-parser
poetry add lat-lon-parser

## Installing lat-lon-parser

Before you install: No runtime dependencies and low install friction. Dormant maintenance status (643 days since last release) means no active development, but the package is marked Production/Stable and has received recent version updates.

License in practice: CC0 1.0 Universal places the code in the public domain with no restrictions on use, modification, or redistribution.

Quickstart:

pip install lat-lon-parser

from lat_lon_parser import parse

result = parse("45° 12.6' W")
print(result)  # -45.21

Requires Python 3.9 or later.

Verify before relying:

- Whether the package handles edge cases like coordinates spanning the International Date Line or poles
- Performance characteristics when parsing very large coordinate datasets
- Whether format detection is truly robust across all claimed format combinations

## Package facts

- License: CC0 1.0 Universal (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: dormant
- Downloads: 138.6K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

parse latitude longitude strings, coordinate format conversion, degrees minutes seconds parser, lat lon string parsing, geographic coordinate parsing, decimal degrees conversion, coordinate format converter, gis, coordinates, parsing

[View on SkillFed](https://skillfed.io/packages/lat-lon-parser) · [View on PyPI](https://pypi.org/project/lat-lon-parser/)