Pip install Matplotlib error with virtualenv

Question

I am trying to install matplotlib in a new virtualenv.

When I do:

pip install matplotlib

or

pip install http://so         


        

Answer 1

To generate graph in png format you need to Install following dependent packages

sudo apt-get install libpng-dev
sudo apt-get install libfreetype6-dev

Ubuntu https://apps.ubuntu.com/cat/applications/libpng12-0/ or using following command

sudo apt-get install libpng12-0