zulooinnovative.blogg.se - Venv multiple python versions

#Venv multiple python versions install#
#Venv multiple python versions update#
#Venv multiple python versions download#

#Venv multiple python versions install#

The trick is that when you want to install modules, you either need to modify the sudo $PATH variable to include /usr/local/bin or you need to execute sudo /usr/local/bin/pip2.7 install This should get pip2.7 installed in your /usr/local/bin folder along with your version of python. To install pip for your new python distribution, you need to specifically tell sudo to go to /usr/local/bin sudo /usr/local/bin/python2.7 -m ensurepip It turns out in CentOS 7 that there is already a python2.7 and a pip2.7 in the /usr/bin folder. However, what I couldn't figure out was why my newly installed version of python wasn't seeing what I was installing. When I installed there, it appeared like pip was working since I could use pip2.7 install and it would install modules. Most of the answers here address the issue but I want to add something what was continually confusing me with regard to creating an alternate installation of python in the /usr/local on CentOS 7. Now try "sudo python3 -version" and magic should happenĮnable virtualenv inside your docker (of course, you have built it in your docker image): ENV VIRTUAL_ENV=/home/USER/Python-3.x.y/env Wan't to force sudo to use your virtualenv? Defaults secure_path="/home/USENAME/Python-3.x.y/env/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin" Now you should have custom-isolated virtualenv.

Do export PYTHONPATH=, export HOME=/some/other/dir.

Ln -s $HOME/.local/lib/python3.6/site-packages/numpy $PWD/venv/lib/python3.6/site-packages/

If you want to "recycle" existing libraries to your virtualenv, softlink them from your existing install, i.e.

There's an easy fix for this: Once you have activated the virtualenv, just point the HOME env variable to somewhere else than your actual home directory, i.e.: export HOME=some/where/else It seems that -no-site-packages is deprecated. To exit the virtualenv and python version just type "deactivate" While in the virtualenv, install your favorite python packages with pip install -upgrade package_name Now, anytime you wish to opt for python3.x, do source $HOME/python_versions/env_python3x.bash

Source $HOME/python_versions/Python-3.x.y/env/bin/activate Virtualenv -no-site-packages -p root/bin/python3.x envĪt "python_versions/" create files like this: env_python3x.bash: You'll get directories like this:Īt each "Python-3.x.y/" directory, do the following (do NOT use "sudo" in any of the steps!): mkdir root

#Venv multiple python versions download#

Python_versions/ : download Python-*.tgz packages here and "tar xvf" them. Don't touch your system's default python3 version though.ĭownload source for different python versions under the following directory structure: $HOME/ If you have several extra python versions installed in some other way, get rid of them, e.g., remove $HOME/.local/lib/python3.x, etc. Openssl libssl-dev libffi-dev unzip pciutils net-tools \ Sudo apt-get install -y zlib1g zlib1g-dev libsqlite3-dev \ Sudo apt-get install -y build-essential cmake Sudo apt-get install software-properties-common

#Venv multiple python versions update#

Prerequisites: If you are using some bare-bones thin client with no extra turf installed, you should run this first (in ubuntu 18.04 at least, extra packages added for convenience): sudo apt-get update

Each Python version is isolated with virtualenv.

Does not mangle your system's default Python installation in any way.

Each Python version is compiled from source.

Type "help", "copyright", "credits" or "license" for more information. Warning: no previously-included files matching '*.py' found under directory '*'Ĭhanging mode of build/scripts-2.7/django-admin.py from 644 to 755Ĭhanging mode of /usr/local/bin/django-admin.py to 755 Warning: no previously-included files matching '_pycache_' found under directory '*' Running setup.py egg_info for package django Installing pip-2.7 script to /usr/local/binĭownloading Django-1.5.1.tar.gz (8.0Mb): 8.0Mb downloaded Anyway, this is what I did to install Django for Python 2.7 on Ubuntu 12.10: $ sudo easy_install-2.7 pip

So apparently there are multiple versions of easy_install and pip. You should use the following if you have pip >= 1.5: $ pip2.6 install otherpackage Since version 0.8, Pip supports pip-: $ pip-2.5 install myfoopackageĮDIT: pip changed its schema to use pipVERSION instead of pip-VERSION in version 1.5. For example: # The system default python: This is the recommendation because it works across all versions of Python, and in all forms of virtualenv. The current recommendation is to use python -m pip, where python is the version of Python you would like to use.