$ sudo apt-get update && apt-get install clang
Remove python 2.7.3
$ sudo apt-get purge python2.x-minimal
or
$ sudo apt-get remove python2.7-minimal
- Download https://www.python.org/downloads/release/python-2715/
- Compile:
$ ./configure$ make && sudo make install
$ sudo apt-get install python2.7-dev
$ sudo apt-get install python3 python3-dev
$ sudo apt-get install python-pip
Provide package index URL using HTTPS protocol to upgrade pip (e.g 8.1.2)
$ sudo pip install --upgrade --index-url=https://pypi.python.org/simple/ pip==8.1.2
$ sudo pip install --upgrade pip
$ sudo pip install virtualenv
$ echo "alias pip='pip2'" >> ~/.bash_profile
$source ~/.bash_profile
$ python --version
python 2.7.15
$ pip --version
pip 18.1
$ virtualenv --version
virtualenv 16.0.0