Today when I tried to run a simple code on Sublime Text 3, the following message appeared:
Python was not found but can be installed from the Microsoft Store: https://go.microsoft.com/fwlink?linkID=2082640
And when I type Python in CMD, it opens the Windows Store for me to download Python 3.7. This problem started today for no good reason, I didn't change or downloaded anything about Python and already tried reinstalling Python, and the Path is correct.
Use the Windows search bar to find "Manage app execution aliases". There should be two aliases for python, unselect them, this will allow the usual python aliases "python" and "python3". See image below.
I think we have this problem when installing python because in a new Windows installation the aliases are in the ON position as in image below. When turned on, Windows puts a empty or fake file named python.exe and python3.exe in the directory named %USERPROFILE%\AppData\Local\Microsoft\WindowsApps. This is the alias.
Then Microsoft put that directory at the top of the list in the "Path" environment variables.
When you enter "python" in cmd, it searches the directories listed in your "Path" environment variables page from top to bottom. So if you installed Python after a new Windows 10 install then get redirected to the Windows Store it's because there are two python.exe's, the alias in the App Execution Alias page, and the real one wherever you installed Python but cmd finds the App execution alias python.exe first because that directory is at the top of the Path.
I think the easiest solution is to just check the python.exe and python3.exe to OFF as I suggested before, which deletes the fake exe's. Based on this Microsoft Devblog https://devblogs.microsoft.com/python/python-in-the-windows-10-may-2019-update/ they stated they created this system partially for new python users specifically kids learning python in school that had trouble installing it. Creating this alias was to helps kids just starting python install it and focus on learning to code. I think Windows probably deletes those aliases if you install Python from the Windows App Store. What we are noticing is that they do not get deleted if you manually install from another source.
(Also the empty/fake python.exe is not really empty it says 0 KB in the screenshot but entering "start ms-windows-store:" in cmd opens the Windows App Store so it probably just has a line with that and a way to direct it to Python page.)
Finally, as Chipjust suggested you can create a new alias for python using something like DOSKEY as explained in this article for example: https://winaero.com/how-to-set-aliases-for-the-command-prompt-in-windows/
The main problem here is that the order in the path calls the windows from top to bottom, and that there is python.exe in %USERPROFILE%\AppData\Local\Microsoft\WindowsApps which is called first if there are no other python.exes in the PATH above that line.
To ensure that the correct python.exe is called, add the python installation folder (containing python.exe) to the PATH, above %USERPROFILE%\AppData\Local\Microsoft\WindowsApps
If python is already installed, then go to Apps & features from settings, select Python, then select modify. Again select modify and select Next:
Then this window will appear:
Select "add Python to environment variable" and click on the install button. Then again go to apps & features, click modify and then click repair. Now go to CMD and type python. Problem solved.
This is a powershell script that does the magic.
Remove-Item $env:USERPROFILE\AppData\Local\Microsoft\WindowsApps\python*.exe
I had problems with this as well, where Windows didn't recognize Python or Anaconda in a double click or cmd (command) prompt.
Solution: I tried deleting the python*.exe files in the WindowsApp directory, but windows wouldn't allow it, so I opened a command prompt in the "%USERPROFILE%\AppData\Local\Microsoft\WindowsApps" directory, typed:
del python.exe
del python3.exe
Then I created a environment variables linking to the installed python link, in my case was C:\Anaconda3; C:\Anaconda3\Scripts and some others for good measure
As a person who does Python development in Sublime Text, I know you said the python path was correct but when you install python make sure to tick the option to add Python to PATH.
I had the same issue back in the day til I did this.
You can manually add Python to windows path by doing this
Here is how a Python application path looks like:
And this is how a Python Scripts path looks like:
4a. If it doesn't show, press new instead of edit and fill the New User Variable box
This is how my Variable value looks like:
C:\Users\Ron\AppData\Local\Programs\Python\Python37-32;C:\Users\Ron\AppData\Local\Programs\Python\Python37-32\Scripts
That’s it! You just added Python to the Windows Path.
Source: Data To Fish
This is an additional note for anyone using pyenv-win: after turning off the app execution aliases, run pyenv rehash. You may also need to close/reopen your CMD or Powershell window.
So, I had the same problem. My answer was to add python to PATH not only for User variables, it was there, but also for System variables. And now everything works.
So, I've got the same problem in VENV. I solved it by typing >> python**.exe** But to add every time .exe a little bit nervous.
Also try to type python.exe in cmd.
Because this is a common issue and this appears to be the canonical question, I want to try to give a complete overview of The Python 3.7 Windows Store Fiasco (TM).
A convergence of two things: the previous introduction of the Python Launcher for Windows in 2011 (hereafter py), and a Windows 10 update in May 2019 that was apparently intended to make installing Python easier for Windows users.
Oops. Turns out that installation path isn't great; it bypasses the "lengthy" setup wizard... which contains some options that some users find very useful. It caused other issues, too. Not to mention that it just works in slightly non-standard ways, has limitations on file system access because it's a Store app, initially couldn't itself be launched by py....
Since the introduction of the py, by default, Windows Python installers do not add the new Python install to the PATH. Why? Because the entire point of the py is that it uses its own logic to find a Python installation, based on some combination of command-line switches and possibly the source file's own shebang line. Now your source files can be associated with py instead of any particular python.exe, and you can get Linux-like behaviour when double-clicking a file. Meanwhile, by running py at the command line, you have easy access to whatever you need, and you don't have to think about which version of Python was installed most recently. So there's seemingly no good reason to put any of those Python installations on the PATH. It only risks confusing you when, for example, the most recently installed version isn't the most up-to-date one. Right?
In the update, Windows 10 put a "python.exe" into a Windows Apps-related folder, which is a wrapper app to open a Microsoft Store link. The idea is that it's on the PATH, but way near the end; so if you have an installed Python, it gets used, and otherwise the wrapper is invoked and helpfully prompts you to install Python - so that you can actually run that random, totally trusted .py file your friend sent you on Discord.
And it would work perfectly, if your installed Python were on the PATH.
Oops.
(But, you know, py had been introduced around 8 years prior. You'd think someone at Microsoft would have been aware of the potential issue. Maybe instead of a special shortcut link, they could have made an actual script that checks for the presence of C:\Windows\py.exe or something.)
You can check the option to add new Python versions to the PATH when you install them, and deal with the fact that python at the command line means a specific one of them. If you need to change that, you can manually tweak your PATH variable.
You can just manually tweak the PATH variable after the fact. (or "Modify" a Python installation to fix it.) This is covered in several other answers.
Independently of that, you can disable the wrappers, as shown in the top answer. You should probably do this anyway; seeing python fail at the command line is less aggravating than dealing with a random GUI window popping up and offering to install something for you, especially when you know you have it already.
If you want to keep the PATH empty, consider using virtual environments for your projects. Whenever a virtual environment is active, the PATH is temporarily modified such that python means the Python installation of that environment. It's quite convenient, really.
You might be able to tell your IDEs to use py instead of a specific Python installation, and it might even be helpful to do so. I don't know. I don't use one.
