No module named 'ConfigParser'

[Bani]

Hi,

When I want to install some pachakes, I have "ImportError: No module named 'ConfigParser'" error.
I use Python3.5 and used the below command to set it as a default python

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 10

e.g. to install setuptools I have the bellow error:
[Image: ppk_s1.jpg][Image: u909_s2.jpg]
I have also get the same error when I am going to install build-essential and python-dev for python-igraph as I discussed in this link.

I installed ConfigParser but I have yet the same errors:
[Image: e7df_c1.jpg]