How to add Python and the Python Scripts directory to a PATH variable?

Question

I'm trying to add Python and the Python scripts directory to the PATH variable. Here is the command I'm writing into CMD (I'm using Windows 8.1):

[Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27\;C:\Python27\Scripts\", "User")

But CMD returns this:

The filename, directory name, or volume label syntax is incorrect.

Anyway, may please someone give me an example? How should I write command above into windows's CMD?

None of these work:

[Environment]::SetEnvironmentVariable("C:/", "$env:Path;C:\Python27\;C:\Python27\Scripts\", "User")
[Environment]::SetEnvironmentVariable("Path", "C:/;C:\Python27\;C:\Python27\Scripts\", "User")

have u added python path in windows for executing. If not try this stackoverflow.com/questions/3701646/… — shiva
– shiva, Commented Apr 10, 2017 at 9:01
Possible duplicate of How to add to the pythonpath in windows 7? — Ansgar Wiechers
– Ansgar Wiechers, Commented Apr 10, 2017 at 9:15

Raffe81 · Accepted Answer · 2017-04-10 09:01:42Z

3

In windows command prompt:

set PATH=%PATH%;C:\Python27\;C:\Python27\Scripts\

Explanation:

set PATH=%PATH%;  -- takes the current path and sets PATH to it.
C:\Python27\;C:\Python27\Scripts\      -- Adds your directories to the path

Is this what you were after?

answered Apr 10, 2017 at 9:01

Raffe81

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6 Comments

stack Over a year ago

Thank you, upvote. I entered your command and I think it worked, because there wasn't any error. But you know, I'm trying to use implement this. Please scroll down to see "Installation On Windows" paragraph. Now when I write this command pip install mitmproxy, it says "'pip' is not recognized as an internal or external command, operable program or batch file.". Any idea?

user7711283 Over a year ago

In order to use pip you have to install pip - and you can't use pip to install pip because pip is not installed :D ... So install pip first ...

user7711283 Over a year ago

@Raffe81 : could you provide also an example of doing the same from within a Python script?

stack Over a year ago

@Claudio pip is included in Python 2.7.9+ by default

Raffe81 Over a year ago

import sys sys.path.append("C:\Python27") And then the same for your scripts path.

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