Python - temporarily modify the current process's environment

Question

I use the following code to temporarily modify environment variables.

@contextmanager
def _setenv(**mapping):
    \"\"\"``with`` context to temporarily modi         


        

Answer 1

_environ = dict(os.environ)  # or os.environ.copy()
try:

    ...

finally:
    os.environ.clear()
    os.environ.update(_environ)