Dependency checks¶

has_dep checks whether an optional dependency is importable, with an optional version constraint. It's what progbar and setup_logging use internally to pick a backend, and it's available for your own code too.

from pedros import has_dep

if has_dep("rich"):
    ...

if has_dep("rich", ">=13.0"):
    ...

if has_dep("tqdm", ">=4.60,<5"):
    ...

Supported operators: ==, !=, >=, >, <=, <. Multiple comma-separated clauses are combined with AND, e.g. ">=4.60,<5".

Returns False if the module can't be imported or, when a version constraint is given, if the installed version doesn't satisfy it.