在Ubuntu中安装Python Pip

Question

I am new to Ubuntu and was trying to install pip using get-pip.py , when I received this message.

Requirement already up-to-date: pip in /usr/local/lib/python2.7/dist-    packages/pip-8.1.2-py2.7.egg

But when I enter pip -V , I receive an error saying :

The 'pip==7.1.0' distribution was not found and is required by the application

Complete error

I was trying to install new packages using pip install <packagename> but this command gives the same error as previous .

Answer 1

I suggest installing pip using the package manager. Open up a terminal and enter

sudo apt-get install python-pip

That should install the pip ubunutu package.

Answer 2

You should not be installing pip for the default python installation, neither from the package manager nor using get-pip.py . So you can never use it to break the system python.

Instead always use virtualenv (created from the default/system python or from a newer version), activate and use pip in that environment.