Not sure how to fix this Cmd command error?

问题

Im on windows 8 and i have installed the latest python,and im going to use sublime text 3 as my ide to create a website using flask.But firstly i needed to install a virtual enviroment using this command pip install virtualenv,and this is the response i recived by cmd.

C:\Users\osman_000>pip install virtualenv
'pip' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\osman_000>

Please can someone help if you know how to fix this,as im not excatly sure what do from here thanks.

回答1:

Under Windows, pip is stored in the Python scripts folder, e.g. "C:\Python27\Scripts".

How to run pip?

Open a Command line by pressing [WIN]+R and typing cmd.exe.
Then navigate tho the Scrips folder of your Python installation by typing cd "C:\Python27\Scripts" (Or where else you've installed Python) into the command line.
To run pip now type pip.exe into the command line. This should print a help message.
If so, you can use pip install package_name to install a Python package.

What I recommend:

Navigating to the Scripts folder every time is very annoying, so you can tell Windows where your pip.exe is stored.

Open the control panel, search for "environment variables" and choose edit environment variables.
When a little window is opened, press the button "Environment variables" on the bottom.
Now, double-click the entry "Path", click "New" and enter "C:\Python27\Scripts" (If this is your intallation path, see above). Close all windows with clicking "OK", you're done!
Now opening a commandline and installing through pip should work.

Hope this helps!

来源：https://stackoverflow.com/questions/35919876/not-sure-how-to-fix-this-cmd-command-error

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python

windows

cmd

command

pip