Setting environment variable python

Question

I am trying to set up the environment variable to point to following however it gives me error

 os.environ["PATH"]= "C:\APPS\ORACLE\product\12.1.0\Client_64\Instantclient" I get the error "Invalid character or identifier"

I am able to navigate the above path so not sure what is failing.

Nordle · Accepted Answer · 2019-05-09 10:23:12Z

8

Try passing it as a raw string (no need to escape backslashes or anything else then):

 os.environ["PATH"]= r"C:\APPS\ORACLE\product\12.1.0\Client_64\Instantclient"

Note the prefixed r before the string.

answered May 9, 2019 at 10:23

Nordle

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3 Comments

Devesh Kumar Singh Over a year ago

Nice! Better than my approach @Nordle :)

Nordle Over a year ago

Thanks! But good eye for spotting where the escaping was needed :)

Ouss Over a year ago

Please explain why escape or raw is required here!

Devesh Kumar Singh · Accepted Answer · 2019-05-09 10:24:38Z

You need to escape the 1 in 12

import os os.environ["PATH"] = "C:\APPS\ORACLE\product\\12.1.0\Client_64\Instantclient" print(os.environ['PATH']) #C:\APPS\ORACLE\product\12.1.0\Client_64\Instantclient

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