Question

How can I change the Environmental PATH variable through code in python ? I am trying to return the path of an executable file. The code does not work because the shell is pointing to another directory. Any help is appreciated.

Answer 1

You can use os.environ.

Example:

path = os.environ["PATH"] # a ':'-separated string
path += ":/var/custom/bin"
os.environ["PATH"] = path

Or in a single line:

os.environ["PATH"] = ':'.join(os.environ["PATH"].split(":") + ["/var/bin"])