Pyenv build Python Multiple versions coexist environment

1. Preface

Sometimes multiple versions of Python want to use pyenv isolation to avoid interference between different versions of the repository. Using pyenv can solve the problem of the development and use of python2 and Python3 very well.

2.pynev Dependent library files

Yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel Libpcap-devel Xz-devel

3. Installing pyenv

mkdir ~/. pyenv    git clone git://github.com/yyuu/pyenv.git ~/. pyenv      'Export pyenv_root= "$HOME/.pyenv" >> ~/bashrc      'export path= ' $PYENV _root/ Bin: $PATH "' >> ~/. BASHRC      'eval" $ (pyenv init-) "' >> ~/. BASHRC      exec

4. View the installable version

Pyenv Install--list

5. Start the installation of python3.6.3

Start installing python3.6.3    pyenv Install-v 3.6.3 to view the versions that are included in the current system. * Indicates the version currently in use    [[email protected] bin]#  pyenv versions    * System (set by/root/. pyenv/version)    3.6.3

6. Switch versions

Remember to change the version after: pyenv    rehash Global 3.6.3    [[email protected] bin]$ pyenv versions    system* 3.6.3 (set by/root/.pyenv /version)    [[email protected] bin]$ pyenv rehash

7. Install Python package management tool PIP 1. First install Setuptools

wget--no-check-certificate  https://pypi.python.org/packages/source/s/setuptools/setuptools-19.6.tar.gz  #md5=c607dd118eae682c44ed146367a17e26-zxvf setuptools-19.6. TAR.GZCD setuptools- 19.6. Tar.gzpython3 setup.py buildpython3 setup.py Install

2. Install Pip

wget--no-check-certificate  https://pypi.python.org/packages/source/p/pip/pip-8.0.2.tar.gz#MD5 =3a73c4188f8dbad6a1e6f6d44d117eeb-zxvf pip-8.0.2. TAR.GZCD pip-8.0.2python3 setup.py Buildpython3 setup.py Install

Pyenv build Python Multiple versions coexist environment