how to install numpy for python3

Question

I need help with installing numpy to Ubuntu 16.04. after:

$ pip3 install numpy
come up always:
PermissionError: [Errno 13] Permission denied: '/usr/local/lib/python3.5/dist-packages/numpy'

What to do? How can i install numpy?

Answer 1

From the terminal run:

sudo apt-get install python3-numpy

This package contains Numpy for Python 3.

For scipy:

sudo apt-get install python3-scipy

For for plotting graphs use pylab:

sudo apt-get install python3-matplotlib

Answer 2

See, when you install any software using pip, it defaults to the path: "/usr/local/lib/python3.5/dist-packages/numpy" for installing that software.

Only the root user has access to this area of control (better security) and so, you'll need to the keyword sudo before such commands to enable that software (in this case, pip) to perform it's operations with a root user access level.

So, your command will now become:

sudo pip3 install numpy

Answer 3

I have also installed numpy library easily using install pip on ubuntu. you should enter the following command:

sudo pip3 install numpy