| """ | |
| Utilities for version comparison | |
| It is a bit ridiculous that we need these. | |
| """ | |
| # Copyright (c) Jupyter Development Team. | |
| # Distributed under the terms of the Modified BSD License. | |
| from packaging.version import Version | |
| def check_version(v, min_v, max_v=None): | |
| """check version string v >= min_v and v < max_v | |
| Parameters | |
| ---------- | |
| v : str | |
| version of the package | |
| min_v : str | |
| minimal version supported | |
| max_v : str | |
| earliest version not supported | |
| Note: If dev/prerelease tags result in TypeError for string-number | |
| comparison, it is assumed that the check passes and the version dependency | |
| is satisfied. Users on dev branches are responsible for keeping their own | |
| packages up to date. | |
| """ | |
| try: | |
| below_max = Version(v) < Version(max_v) if max_v is not None else True | |
| return Version(v) >= Version(min_v) and below_max | |
| except TypeError: | |
| return True | |