Azure function deployment of single Python script and process of installation of requirements.txt in Azure Functions.

Question

Hey There,
I am completely new to Azure. I recently deployed my Python Script on Azure Functions (HTTP). It worked completely fine for me. The problem I faced is when my Python script needed some packages to be installed like (pandas, psycopy2). Although I put them in requirements.txt file. And after deployment requirements.txt is stored in root directory (same as of host.json) but I am getting import error.
I don't really know how to install these packages in azure function.
Any help would be really really appreciated.

Answer 1

Hi

Below article:
https://learn.microsoft.com/en-us/answers/questions/992047/azure-function-error-2.html

Contains few hints on how to troubleshoot the issue:

• General guidelines for python on azure:
  https://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python?tabs=asgi%2Capplication-level&pivots=python-mode-configuration#package-management
• Troubleshoot module not found:
  https://learn.microsoft.com/en-us/azure/azure-functions/recover-python-functions?tabs=vscode%2Cbash&pivots=python-mode-configuration#troubleshoot-modulenotfounderror

Hope this helps!

Answer 2

@Yasir Khan Thanks for reaching out. If the modules can be installed using pip, then you can mention the same in your requirements.txt
But in case if those module or dependencies cannot be installed using pip then you need to use build native dependencies or enable remote build.
You can refer to python troubleshooting document for more details.