pydu/docs/environ.md

Environ

Utils for handling environment.

environ.environ

environ(**kwargs)

Context manager for updating one or more environment variables.

Preserves the previous environment variable (if available) and recovers when exiting the context manager.

If given variable_name=None, it means removing the variable from environment temporarily.

>>> from pydu.environ import environ
>>> with environ(a='a'):
...     print(os.environ['a'])
...
a

environ.path

path(append=None, prepend=None, replace=None)

Context manager for updating the PATH environment variable which appends, prepends or replaces the PATH with given string or a list of strings.

>>> import os
>>> from pydu.environ import path
>>> with path(append='/foo'):
...     print(os.environ['PATH'])
...
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/foo