# tinyhgvs
[](https://pypi.org/project/tinyhgvs/)
[](https://pypi.org/project/tinyhgvs/)
[](https://github.com/svm-zhang/tinyhgvs/actions/workflows/ci.yml)
[](https://github.com/svm-zhang/tinyhgvs/blob/main/LICENSE)
[](https://crates.io/crates/tinyhgvs)
[](https://docs.rs/tinyhgvs)
`tinyhgvs` is a lightweight HGVS parsing Python library backed by a core parser and
structured data and error model implemented in Rust.
## Installation
`tinyhgvs` can be installed directly from PyPI:
```bash
pip install tinyhgvs
```
## Quick start
- A splicing-site substitution crossing an exon/intron boundary:
```python
from tinyhgvs import parse_hgvs
variant = parse_hgvs("NM_004006.2:c.357+1G>A")
print(variant.reference.primary.id)
print(variant.coordinate_system.value)
print(variant.description.location.start.coordinate)
print(variant.description.location.start.offset)
```
- An exact repeat is parsed into a structured repeat edit:
```python
from tinyhgvs import parse_hgvs
variant = parse_hgvs("NC_000014.8:g.123CAG[23]")
print(variant.description.location.start.coordinate)
print(variant.description.edit.blocks[0].unit)
print(variant.description.edit.blocks[0].count)
```
- Known but unsupported HGVS syntax raises `TinyHGVSError` with a diagnostic code:
```python
from tinyhgvs import TinyHGVSError, parse_hgvs
try:
parse_hgvs("NC_000001.11:g.[123G>A;345del]")
except TinyHGVSError as error:
print(error.code)
```
## Documentation
Please refer to official documents for details about both Python and Rust APIs:
- [Python API and project docs](https://svm-zhang.github.io/tinyhgvs)
- [Rust API docs](https://docs.rs/tinyhgvs)
## Citation
If you use `tinyhgvs` in your project, please kindly cite the github repository.
## License
`tinyhgvs` is licensed under the MIT license.