how to create python function app in azure free tier account

Hi @sanjay baskaran ,

Thanks for reaching out to Microsoft Q&A.

You are running into a known Azure Functions limitation: Python isn’t supported on Windows-based function apps (even in Consumption), so you won’t see “Python” in the runtime drop-down when you pick the Consumption (Windows) plan. To host Python you need a Linux-based Function App.

You have two easy ways to get there on your free subscription:

1. Portal approach
   • Go to Create > Function App
   • On the Basics tab change Operating system from Windows to Linux
   • You’ll now see Python in the Runtime stack picklist
   • Finish the wizard with Consumption plan selected (you still get the 1 M free executions/month)
2. CLI approach If you prefer a one-liner, just run in Cloud Shell or your local Azure CLI:

      
      az functionapp create \
      
      --resource-group   myResourceGroup \
      
      --consumption-plan-location <your-region> \
      
      --name              myPythonFuncApp \
      
      --storage-account   myStorageAccount \
      
      --runtime           python \
      
      --runtime-version   3.9 \
      
      --os-type           Linux
      
   

   That spins up a Linux Consumption plan Function App with Python support.

References:

• Creating functions from scratch
• Create a function app in the portal
• Create your first Python function
• CLI quickstart for serverless Python
• VS Code quickstart (Linux + Python)

Hope this helps!

If the resolution was helpful, kindly take a moment to click on and click on Yes for was this answer helpful. And, if you have any further query do let us know.

Python is supported for Azure Functions on the standard Consumption plan, but only on Linux. In the portal flow being used, the only Consumption option shown is Consumption (Windows), which is why Python does not appear in the runtime list.

To create a Python Function App on a free-tier subscription, use a Linux-based Consumption plan instead of Consumption (Windows). The easiest supported path in the provided context is to create the app from tooling (VS Code or Azure CLI), which automatically selects a compatible Linux Consumption plan and Python runtime.

Using Visual Studio Code (free account works the same as paid):

1. Install Visual Studio Code and the Azure Functions extension.
2. Create a local Python Functions project (HTTP trigger) following the Python quickstart.
3. In VS Code, press F1 and run Azure Functions: Create function app in Azure...(Advanced).
4. When prompted:
   • Enter a globally unique function app name (only a-z, 0-9, and -).
   • For Select a hosting plan, choose Consumption (or Flex Consumption if/when it becomes available to the subscription; both are supported for Python per language-specific guidance).
   • For Select a runtime stack, choose the Python stack/version.
   • Create or select a Resource group.
   • Choose a supported Region.
   • Create or select a Storage account.
   • Create an Application Insights resource.
5. Complete the prompts; VS Code creates the Function App on a compatible Linux Consumption plan and can then deploy the Python code.

If the portal still only offers Consumption (Windows) and no Python runtime, use VS Code or Azure CLI to create the app so that a Linux Consumption plan is selected automatically.

References:

• Create and manage function apps in the Flex Consumption plan (programming-language-python)
• Create and manage function apps in the Flex Consumption plan (programming-language-javascript)
• Create and manage function apps in the Flex Consumption plan (programming-language-typescript)
• Create and manage function apps in the Flex Consumption plan (programming-language-powershell)
• Create a function app in the Azure portal (consumption-plan)
• Create a serverless Python function app using Azure CLI