Python for Windows on Arm

Python has native support for Windows on Arm.

Starting with version 3.11, an official installer is available.

Download and install

Download the installer to get started.

Once downloaded, run the installer exe file on a Windows on Arm machine.

The installer will start.

Check “Add python.exe to PATH” if you want to easily invoke python from any directory.

Wait for the installer to complete and show the message, “Setup was successful”.

Invoke python

At a Windows Command prompt or a PowerShell prompt use python or py to start the interpreter.

    

        
        
            C:\>py
Python 3.11.0 (main, Oct 24 2022, 18:15:22) [MSC v.1933 64 bit (ARM64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
        
    

Test an example

To confirm python is working, save the code below into a file uname.py.

    

        
        
            import platform
print("Python version", platform.python_version())
print("Machine is", platform.uname().system, platform.uname().release, platform.uname().machine)
        
    

Run the code.

    

        
        
            py uname.py
        
    

Running on a Windows on Arm machine produces the output:

    

        
        Python version 3.11.0
Machine is Windows 10 ARM64

        
    

Installing packages

Python pip can be used to install packages.

For example, to install Flask:

    

        
        
            pip install Flask
        
    

Save the code below as hello.py:

    

        
        
            import platform
from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "<h1><b>Hello from %s %s %s %s</b></h1>" % (platform.system(), platform.release(), platform.version(), platform.machine())

if __name__ == "__main__":
    app.run(host="0.0.0.0")
        
    

Run the application:

    

        
        
            python hello.py
        
    

The output will be similar to:

    

        
        C:\>python hello.py
 * Serving Flask app 'hello'
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:5000
 * Running on http://192.168.68.95:5000
Press CTRL+C to quit

        
    

Open a browser to the URL printed by the application.

The output is in the browser.

Using IDLE

Python IDLE is included in the installation. IDLE is a simple IDE for python development.

You are now ready to use Python on your Windows on Arm device.