context¶

Functions¶

jnrbase.context.chdir(__path)[source]¶

Context handler to temporarily switch directories.

Parameters: __path (Path) – Directory to change to
Yields: Execution context in path
Return type: AbstractContextManager[+T_co]

jnrbase.context.env(**kwargs)[source]¶

Context handler to temporarily alter environment.

If you supply a value of None, then the associated key will be deleted from the environment.

Parameters: kwargs (str) – Environment variables to override
Yields: Execution context with modified environment
Return type: AbstractContextManager[+T_co]

Examples¶

>>> sorted(listdir('.')[:2])
['.travis.yml', 'README.rst']
>>> with chdir('doc'):
...     sorted(listdir('.'))[:3]
['NEWS.rst', 'alternatives.rst', 'api']
>>> sorted(listdir('.')[:2])
['.travis.yml', 'README.rst']

>>> with env(SHELL='oi'):
...     getenv('SHELL')
'oi'