Ubuntu – How to install a different version of python-dev

aptdevelopmentpython

The default python version on my ubuntu system is 2.7, but 2.6 is still present.

I've installed headers (apt-get install python-dev), since it's needed to compile and install python packages, for current version.

However, some of my projects still run on a 2.6 virtual python environment. For them, I cannot install eggs and packages since, among others, Python.h is missing. Do I need to install an older version of python-dev? How to do so?

Best Answer

Try installing python2.6 and python2.6-dev.

Related Solutions

Ubuntu – What are the packages/libraries I should install before compiling Python from source

There are a few more. Normally, configure should remind you if anything is missing, and a few of them are optional. Here's my list:

build-essential
libncursesw5-dev
libreadline-gplv2-dev
libssl-dev
libgdbm-dev
libc6-dev
libsqlite3-dev
libbz2-dev
libffi-dev

Ubuntu – pyvenv vs venv vs python-virtualenv vs virtualenv and python 3

The way to install Python 3.x packages in a Python virtual environment is to create the Python virtual environment using Python 3 virtual environment creator (python3-virtualenv). python3-virtualenv is in the default Ubuntu repositories in Ubuntu 14.10 and later.

Install Python 3.x packages in a Python virtual environment in 16.04 and later

Install Python 3 virtual environment creator

sudo apt install virtualenv python3-virtualenv

Create a Python virtual environment for python3. You can only install python3 packages inside this Python virtual environment. If you also want to install Python 2.x packages, then you need to make another Python virtual environment.
```
virtualenv -p python3 env  
source ./env/bin/activate
```
The new Python virtual environment for python3 will be created in the env directory which is located in the current directory.

Install Python packages.

cd /path/to/env/ # env is the python3 virtual environment's directory
source bin/activate
python3 -m pip install first-package-name next-package-name last-package-name

This is a new python3 virtual environment with the latest version of pip3, so installing Python packages in it will work great.

Install Python 3.x packages in a Python virtual environment in Ubuntu 14.04

sudo apt-get install virtualenvwrapper  
gedit .bashrc

Add the following line to the end of .bashrc.

source /usr/share/virtualenvwrapper/virtualenvwrapper.sh

Save the changes to .bashrc and close gedit. Source your .bashrc for the changes to take effect.

cd 
source .bashrc

Create a Python virtual environment for python3. You can only install python3 packages inside this Python virtual environment. If you also want to install Python 2.x packages, then you need to make another Python virtual environment.

mkvirtualenv py3 -p /usr/bin/python3

The new Python virtual environment for python3 will be created in the ~/.virtualenvs/py3 directory. .virtualenvs is a hidden folder.

Install a package.

cd ~/.virtualenvs/py3
source bin/activate
python2 -m pip install package-name