python - How to install packages with pip in Windows PowerShell

Question

I am using Python 2.7.9 on a Windows 8 computer.

I tried to install lxml by typing pip install lxmlin Windows PowerShell after typing python, but I get the following error: SyntaxError: invalid syntax

I tried installing pip by using the following tutorial http://www.tylerbutler.com/2012/05/how-to-install-python-pip-and-virtualenv-on-windows-with-powershell/ only to later realize that I already had pip.exe, pip2.7.exe and pip2.exe installed when I first installed Python. They are located in the C:Python27Scripts directory.

Yet, if I try something like pip help I will get an invalid syntax error.

Do I have to reinstall pip or how do I get it to work in order to install the lxml library.

Thank you for any help you can provide.

Answer 1

I had the same problem. You need to set the PATH environment variable, so that the system recognizes the command "pip".

If typing easy_install or pip [in PowerShell] doesn’t work, it means the Scripts folder is not in your path. Run the next command in that case (Note that this command must be run only once or your PATH will get longer and longer). Make sure to replace c:Python33Scripts with the correct location of your Python installation:

setx PATH "%PATH%;C:Python33Scripts"

Close and reopen PowerShell after running this command.

Source: http://arunrocks.com/guide-to-install-python-or-pip-on-windows/