CODEWITHSUNDEEP
pythonpathenvironment-variables
Lenn
Lenn

Reputation: 1469

Modify beginning of PATH-variable with os.environ in python

I know that I can get and modify the PATH variable by doing something like os.environ["PATH"] += "path/to/dir".

But is there any way to ensure that the new path gets written to the beginning of PATH?

Upvotes: 2

Views: 1785

Answers (1)

oittaa
oittaa

Reputation: 595

os.environ["PATH"] = "path/to/dir" + os.pathsep + os.getenv("PATH")

https://docs.python.org/3/library/os.html

os.pathsep

The character conventionally used by the operating system to separate search path components (as in PATH), such as ':' for POSIX or ';' for Windows. Also available via os.path.

os.getenv(key, default=None)

Return the value of the environment variable key if it exists, or default if it doesn’t. key, default and the result are str.

Upvotes: 3

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