Where is python-dev installed and what impact does this have on anaconda 2?

I am currently using Ubuntu 16.04 LTS. I have installed Anaconda2 and set it as the main path for python. So if I type $ python

or $ pip

, it's Anaconda2.

And for using Tensorflow I need to install python-dev and python-numpy with

$ sudo apt-get install python-pip python-dev

      

        
        
        
      

    

Where are they installed and do they have anything to do with my Anaconda2? Or do they only affect the pre-installed pythons in Ubuntu 16.04?