Posted on January 31, 2023 (Updated on July 10, 2025)

How to change Python version for GRASS in Windows

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How do I change my python version on Windows?

To update Python in Windows using the Python installer, follow the below-mentioned steps carefully.

  1. Step 1: Check Python Version. Firstly, check the current Python version using Command Prompt:
  2. Step 2: Download Python Installer.
  3. Step 3: Execute Python Installer.
  4. Step 4: Install Python.
  5. Step 5: Check Python Version.


How do I switch to a different version of python?

Quote from video: The other option how we can change it let's go to system. System in form we need update variables and let's go to environment variables. And in case for my user i see paths. Let's open it.

How do I make python 3 my default in Windows?

Always type py instead of python when running a script from the command line. Set your preferred default version by setting the PY_PYTHON environment variable (e.g. PY_PYTHON=3.11) . You can see what version of python is your default by typing py .
 

How do I change the default python path in Windows?

How to set python path in windows

  1. Right-click ‘My Computer’.
  2. Select ‘Properties’ at the bottom of the Context Menu.
  3. Select ‘Advanced system settings’
  4. Click ‘Environment Variables…’ in the Advanced Tab.
  5. Under ‘System Variables’: Click Edit.


How do I make Python 3.10 my default Windows?

Just change the first two lines in the PATH variable to your Python directory and the Python Scripts directory. The CMD which will open using this bat will be ready to run the newer version of python executable. Save this answer.
 

How to install Python 3.10 5 on Windows 10?

Quote from video: 10 at first go to the web browser i am using chrome you can use any browser on google type python. Press enter on pressing enter the official website is visible python.org click on it.

How do I use Python 2.7 instead of 3?

Switching between Python 2 and Python 3 environments

  1. Create a Python 2 environment named py2, install Python 2.7:
  2. Create a new environment named py3, install Python 3.5:
  3. Activate and use the Python 2 environment.
  4. Deactivate the Python 2 environment.
  5. Activate and use the Python 3 environment.

Does Python 3.9 have switch?

Unlike every other programming language we have used before, Python does not have a switch or case statement.
 

Can I have 2 versions of Python installed?

Quote from video:

How do I run Python 3.9 on Windows?

Installing

  1. Double-click the icon labeling the file python-3.9. 6-amd64.exe. A Python 3.9.
  2. Highlight the Install Now (or Upgrade Now) message, and then click it. When run, a User Account Control pop-up window may appear on your screen.
  3. Click the Yes button. A new Python 3.9.
  4. Click the Close button.


How do I update Python 3.6 to 3.7 in Windows?

So lets start:

  1. Step 0: Check the current python version. Run below command to test the current version installed of python.
  2. Step 1: Install python3.7. Install python by typing:
  3. Step 2: Add python 3.6 & python 3.7 to update-alternatives.
  4. Step 3: Update python 3 to point to python 3.7.
  5. Step 4: Test the new version of python3.

 

How do I run Python 3.8 on Windows?

Step 2 – Download Python Executable Installer

  1. On your web browser, navigate to the Windows downloads section.
  2. Locate Python 3.8. Click on the link to download either the Windows installer(64-bit). In this case, we will choose the one available for Python 3.8.