See the Python Developer's Guide to learn about how Python development is managed. Skip to content. Participate in the official Python Developers Survey Take the survey! Python version Maintenance status First released End of support Release schedule. Looking for a specific release? Python releases by version number: Release version Release date Click for more.
Sponsors Visionary sponsors help to host Python downloads. Licenses All Python releases are Open Source. Sources For most Unix systems, you must download and compile the source code. Alternative Implementations This site hosts the "traditional" implementation of Python nicknamed CPython. I want to run 2. Running a different copy of Python is as easy as starting the correct executable.
You mention that you've started a python instance, from the command line, by simply typing python. When it finds the correct file to run the file is being run. Now, if you've installed two python versions 2. The other alternative is to create a shortcut to the respective python. From Python 3. Now, you can use the! See more details in my another comment or read the PEP Summary: The py script. The py -3 script. As per alexander you can make a set of symbolic links like below.
Put them somewhere which is included in your path so they can be easily invoked. For example for 3. If you have also 32bit and 64bit versions, you can just type py I strongly recommend the pyenv-win project.
Thanks to kirankotari 's work, now we have a Windows version of pyenv. When you install Python, it will not overwrite other installs of other major versions. So installing Python 2. When you install on Unix including Linux and OS X you will get a generic python command installed, which will be the last one you installed. But if you don't want to do that, and you probably don't you can install it like this:. Note the "altinstall" that means it will install it, but it will not replace the python command.
On Windows you don't get a global python command as far as I know so that's not an issue. After installing the virtualenv, you can create the virtual environment of your application using. This would activate the python version you like. Just change the version number to use a different python version.
For python 2 open up your python 2 installer, select whatever preferences you want but just remember to set Add python. Now click on OK and you should be done. Once you are in there type python or py , It should open up python3. Now type py -2 it should open python 2. If none of this works then restart the computer and if the problem still persists then uninstall everything and repeat the steps.
I will use python37 hello. This is a simple and elegant solution to easily run 2 or more different versions of python without using scripts in Windows. Whatever the version of python, it will start from the Command prompt.
I have python versions 3. The Environment Variable paths are normal and were automatically added when each version of python was installed. It's best to install python using the "all users" option. This way the python will simply install to:. Open each of these python folders and find the python. Copy and paste the python.
Then carefully rename the copies to:. More versions of python can easily be added by repeating the same as shown above. Elegant and simple. Do the same thing with other python versions. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Installing multiple python versions on windows Ask Question. Asked 5 years, 10 months ago.
Active 4 years, 11 months ago. Viewed 3k times. Improve this question. Ahmad Abdelghany Ahmad Abdelghany 8, 4 4 gold badges 37 37 silver badges 32 32 bronze badges. Hakala would that be a permanent change or for a single session only? Forum Donate. Dalya Gartzman. Install virtualenv If you already have some virtual environments, or are using Anaconda, make sure the next steps are performed from outside all these environments.
Install Python You can download python from the official site , for example for python3. Once downloading is finished, open the executable file and an installation prompt will appear.
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