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I started to learn Python and got stuck on my own language (I'm not English Native Speaker), main user folder name was by kirilitsa.

It cause trouble with installing new elements to Python. I changed name and now console don't see Python, I tried to reinstall manual and from Control panel but still it somehow exist in my pc and I can't repair, modify or uninstall it.

I think there is a path which lead to old version of folder name but I can't even imagine where it can be.

Is there any solution or to reinstall windows will be faster?

  • It shows right way but...:

enter image description here

  • Changed path:

enter image description here

enter image description here

Federico Baù
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Dodik
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  • check environment variable PATH from control panel>system – frab Jan 18 '21 at 15:58
  • @frab already was changed to new one and stil... – Dodik Jan 18 '21 at 16:04
  • You could simply install Anaconda and let it overwrite the windows python path. For me that works. Anyway, could you show your PATH variable? – Dschoni Jan 18 '21 at 16:17
  • @Dodik Have a look [here](https://stackoverflow.com/questions/3701646/how-to-add-to-the-pythonpath-in-windows-so-it-finds-my-modules-packages) – Federico Baù Jan 18 '21 at 16:24
  • Does this answer your question? [How to add to the PYTHONPATH in Windows, so it finds my modules/packages?](https://stackoverflow.com/questions/3701646/how-to-add-to-the-pythonpath-in-windows-so-it-finds-my-modules-packages) – Federico Baù Jan 18 '21 at 16:24
  • Just press right buttton in My Computer > 'Properties > Advanced System Settings > Environment Variables > Then search of 'Path' and double click it,. if you see a PATH of Python already installed deleted it. Then go and install again Python and flag the 'Add Python to envirorment variables' is even in the screenshot u add – Federico Baù Jan 18 '21 at 16:26
  • @Dschoni https://imgur.com/a/UeLeufy PATH – Dodik Jan 18 '21 at 16:40
  • @Federico Baù https://imgur.com/a/UeLeufy – Dodik Jan 18 '21 at 16:41
  • @Dodik ok that's good. man when you installed Python did you flagged 'Add Python to envirorment variables' ? you can see it in the Screenshot – Federico Baù Jan 18 '21 at 16:47
  • @Federico Baù I can't, it thinks there is Python already installed and doesnt send me to install screen, it sends me to Modify, Repair and Uninstall https://imgur.com/e2omjfJ – Dodik Jan 18 '21 at 16:51
  • " install screen, it sends me to Modify" if so,add a screenshot !! [check this](https://meta.stackoverflow.com/questions/344851/how-do-you-add-a-screenshot-image-to-your-stack-overflow-post#:~:text=1%20Answer&text=In%20your%20toolbar%20when%20typing,you're%20hosting%20it%20elsewhere.) Also, you can have different Python installed, actually everytime you create an envirorment you install a new Python everytime! is not that the issue – Federico Baù Jan 18 '21 at 16:53

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5 months later I'm found how to fix the problem. After several wrong deletion of Python 3.9.1 which screwd up things there still was some in system installer, like this but 3.9.1 version: enter image description here

You need to kill them all before u could install new version or update. Good proggram which I used: Reg Organizer. Install it, open important sections registry, find all python 3.9.1 or version you have problem with and delete: enter image description here Done! Worked with me.

Dodik
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From the Official Docs.

Do this

Modifying an Existing Installation:

Re-run your installer (e.g. in Downloads, python-3.8.4.exe) and Select "Modify". Check all the optional features you want (likely no changes), then click [Next]. Check [x] "Add Python to environment variables", and [Install]. enter image description here

UPDATE

NOTE:

I see that from screenshot you are installing the 64-bit Python, what version is your Window?

if is 32-bit then just go here and get the 32 bit (32 bit here)

enter image description here

Run Installer as Amministrator

If you still get an error, go manually to your folder, as per screenshot the path should be:

C:\Users\Timur\AppData\Local\Programs\Python\

Follow this instruction

How to add to the PYTHONPATH in Windows, so it finds my modules/packages?

Add

C:\Users\Timur\AppData\Local\Programs\Python\Python39\

And

C:\Users\Timur\AppData\Local\Programs\Python\Python39\Scripts\
Federico Baù
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  • Even with all of features: https://imgur.com/17ZH53t – Dodik Jan 18 '21 at 16:56
  • @Dodik you need to run it as Administrator, check my answer – Federico Baù Jan 18 '21 at 17:00
  • Trying to install old version but it sees "new version" and sends me off https://imgur.com/hUCo9s2 https://imgur.com/GPkrXL6 try 3.8 version? – Dodik Jan 18 '21 at 17:00
  • Done by admin: https://imgur.com/7r8jPtG dif error and it created folder with old name: https://imgur.com/m4GHd4i but install didnt run full only docs installed before error – Dodik Jan 18 '21 at 17:07
  • @Dodik yes but I see again that from the installer you didn't select 'Add Python 3,9 to PATH' – Federico Baù Jan 18 '21 at 17:13
  • I told already, it's old version and even if I check path it tells me there is a new version installed, tryed PYTHONPATH - didn't worked. I'll try now to install 3.8 – Dodik Jan 18 '21 at 17:27
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    3.8.6 easy installed, until next update of 3.9 I think will be unable to do smt with it. I'm afraid there is nothing to do with PATH, it's somewhere else in registry editor maybe – Dodik Jan 18 '21 at 17:34
  • @Dodik I'm happy you installed the 3.8 but honestly this is weird. I tell you what. the best thing now is think about this another day u see it will work eventually. – Federico Baù Jan 18 '21 at 17:56
  • yeah, I think so too. Thanks for help. – Dodik Jan 18 '21 at 18:08
  • I would still be very curious on this. I had issues before with the python installer when running on non-ASCII folders. You definitely want to have a clean install at some point, which is why I recommended Anaconda above. – Dschoni Jan 19 '21 at 09:03
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I too deleted python by mistake and found that I was unable to uninstall or reinstall. When I launched the python installer, the only options I could choose from were - Modify, Repair, Uninstall. Neither modify nor uninstall worked since I got the same message 'No Python 3.9 installation was detected'. It was perfectly solved using Repair option. I then chose to uninstall completely and reinstall. It would probably also be a good idea to check the environment variable 'Path' and also Registry Editor to make sure there is nothing left over from the previous installation.

spacestar
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