My system has 2.7.6 as a default python version and most of my applications runs on it, but one project that I'm working with AWS IoT requires version 2.7.9.
I will show how to run multiple versions of python using pyenv.
Prerequisite
$ sudo apt-get update
$ sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \
libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
xz-utils tk-dev libffi-dev liblzma-dev
Install pyenv
Install pyenv with one-liner provided by the automatic installer.
$ curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash
Add following lines at the end of .bashrc file and restart the terminal.
export PATH="/root/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
Note : For zsh use .zshrc file.
Usage
Install python version 2.7.9.
$ pyenv install 2.7.9
List all installed python versions.
$ pyenv versions
* system (set by /home/ubuntu/.pyenv/version)
2.7.9
Use 2.7.9 version for your project.
$ mkdir aws-iot-mqtt
$ cd aws-iot-mqtt
$ pyenv local 2.7.9
Now, verify which python version is enabled for current directory.
// Inside `aws-iot-mqtt` directory
$ python -V
Python 2.7.9
// Check version in parent directory
$ cd ..
$ python -V
Python 2.7.6
Note: Tested on Ubuntu 16.04 server edition
Latest comments (7)
pipenv is a cross-platform solution to the same thing. You should check it out
If you are on Windows, you can get
pyenvoverpip(as long as you don't plan to use Python 3 with it).It's probably safer to use Windows Subsystem for Linux for that although it's not a real solution
Windows + Linux Bash = Perfect Combination
Except that it breaks your workflow because C:\ is suddenly /mnt/c/.
Why?
Because Windows is not supported by pyenv but you can use it inside the sub system being a Linux compatible environment