Unable to import pyodbc - even with --build-native-deps

For the sake of simplicity, i’ve shortnened function to as follows

import logging

import azure.functions as func

import pyodbc

def main(req: func.HttpRequest) -> func.HttpResponse:
    logging.info('Python HTTP trigger function processed a request.')

    name = req.params.get('name')
    if not name:
        try:
            req_body = req.get_json()
        except ValueError:
            pass
        else:
            name = req_body.get('name')

    if name:
        return func.HttpResponse(f"Hello {name}!")
    else:
        return func.HttpResponse(
             "Please pass a name on the query string or in the request body",
             status_code=400
        )

I deploy to Azure with func azure functionapp publish myfunctionapp --build-native-deps --additional-packages "python3-dev libevent-dev unixodbc-dev "

And I still get issues when trying to execute the function. HTTP responds with 500 and the portal tells me

Function (HttpTrigger) Error: Failed to start language worker process for: python. bash exited with code 255 [78] Failed to execute script worker,ImportError: cannot import name ‘main’. Session Id: 3f21797ce66145edb348ae0836ba794d

In our actual project where this import statement lives in shared code outside of the entry init.py file I get the plain “ModuleNotFoundError: No module named ‘pyodbc’”

Using function core tools 2.2.70

[konradsitarz]

@abkeble I would try with replacing ‘ODBC Driver 13 for SQL Server’ with ‘ODBC Driver 17 for SQL Server’ in the connection string. I think it’s the version of db provided on azure.

[konradsitarz]

I encounter the same issue with pyodbc module loading. I’m able to run it locally but while deployed it shows the error

Version of pyodbc==4.0.26

Deployment command, which shows no error: func azure functionapp publish <app> --build-native-deps

EDIT: I replaced pyodbc with full python implementation pypyodbc and it didn’t show any error with importing.