What is the correct way to unset a linux environment variable in python?

Question

From the documentation:

If the platform supports the unsetenv() function, you can delete items in this mapping to unset environment varia

Answer 1

You can still delete items from the mapping, but it will not really delete the variable from the environment if unsetenv() is not available.

del os.environ['MYVAR']

Answer 2

Just

del os.environ['MYVAR']

should work.