Azure functions: Python Httptrigger with multiple script files

Question

Azure functions: Python Httptrigger with multiple script files

SRAVANTHI GAALI 1

Created Azure function using template HTTPTrigger using python as programming language.
added multiple python files, unable to import a method/class in init.py.

Error:
[6/25/2020 9:56:17 AM] Worker failed to function id 73a7ea01-48eb-49ca-9bb1-99a5cc6aad52.
[6/25/2020 9:56:17 AM] Result: Failure
Exception: ModuleNotFoundError: No module named 'azure_pipelinev1'
Stack: File "C:\Users\Sravanthig\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\python\3.6/WINDOWS/X64\azure_functions_worker\dispatcher.py", line 243, in _handle__function_load_request
func_request.metadata.entry_point)
File "C:\Users\Sravanthig\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\python\3.6/WINDOWS/X64\azure_functions_worker\loader.py", line 66, in load_function
mod = importlib.import_module(fullmodname)
File "C:\Users\Sravanthig\AppData\Local\Programs\Python\Python36\lib\importlib__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "C:\Users\Sravanthig\Documents\AzurePipelineTest\AzurePipeline__init__.py", line 4, in \

Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-07-01T06:36:29.293+00:00

Based on the error, the required module is not present. Could you share more details on where that module (azure_pipelinev1) is present and if its available locally?
SRAVANTHI GAALI 1 Reputation point

2020-07-01T07:34:26.683+00:00

azure_pipelinev1 is a python script file in the same local path.
Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-07-01T15:37:11.237+00:00

Could you share a snippet of your imports? Also, do look at the import behavior in python function apps.
SRAVANTHI GAALI 1 Reputation point

2020-07-02T08:31:03.587+00:00

Thank you Pramod.
imports in my file - function/init.py file.
import logging
import azure.functions as func
from ..azure_pipeline import azure_pipelinev1

I tried to use import as given in the document. https://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python#import-behavior
it is working, but now I am facing issue with standard python module imports.

i am getting error Exception has occurred: ModuleNotFoundError
No module named 'pytz'
File "c:\Users\Sravanthig\Documents\AzurePipelineTest\azure_pipeline\azure_pipelinev1.py", line 3, in <module>
import pytz
File "c:\Users\Sravanthig\Documents\AzurePipelineTest\AzurePipeline__init__.py", line 3, in <module>
from ..azure_pipeline import azure_pipelinev1
SRAVANTHI GAALI 1 Reputation point

2020-07-02T08:31:31.837+00:00

azure_pipelinev1 has following import statements:
import os
import json
import pytz
import argparse
from datetime import datetime, timedelta
from time import time, sleep

I have installed pytz using pip and also included in requirements.txt file but still getting same error.

requirements.txt file has following content.
azure-functions
azure-identity
pytz
azure-keyvault-secrets
azure-common
azure-mgmt-datafactory
azure-storage-blob
Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-07-03T12:59:24.433+00:00

If you are using a virtualenv, could you double check if you installed the module in the same? Probably running the azure_pipelinev1.py file directly would help check if the module is installed correctly or not.
SRAVANTHI GAALI 1 Reputation point

2020-07-07T13:39:47.64+00:00

Tried to run azure_pipelinev1.py directly, didn't see any import errors with standard python packages like pytz. only if we import azure_pipelinev1, we are seeing import errors.
Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-08-06T15:38:00.377+00:00

Apologies for not getting back on this. Were you able to resolve this? If not, please feel free to send an email to azcommunity[at]microsoft[dot]com with a link to this thread.

1 answer

Your answer

Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-07-01T06:36:29.293+00:00

Based on the error, the required module is not present. Could you share more details on where that module (azure_pipelinev1) is present and if its available locally?
SRAVANTHI GAALI 1 Reputation point

2020-07-01T07:34:26.683+00:00

azure_pipelinev1 is a python script file in the same local path.
Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-07-01T15:37:11.237+00:00

Could you share a snippet of your imports? Also, do look at the import behavior in python function apps.
SRAVANTHI GAALI 1 Reputation point

2020-07-02T08:31:03.587+00:00

Thank you Pramod.
imports in my file - function/init.py file.
import logging
import azure.functions as func
from ..azure_pipeline import azure_pipelinev1

I tried to use import as given in the document. https://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python#import-behavior
it is working, but now I am facing issue with standard python module imports.

i am getting error Exception has occurred: ModuleNotFoundError
No module named 'pytz'
File "c:\Users\Sravanthig\Documents\AzurePipelineTest\azure_pipeline\azure_pipelinev1.py", line 3, in <module>
import pytz
File "c:\Users\Sravanthig\Documents\AzurePipelineTest\AzurePipeline__init__.py", line 3, in <module>
from ..azure_pipeline import azure_pipelinev1
SRAVANTHI GAALI 1 Reputation point

2020-07-02T08:31:31.837+00:00

azure_pipelinev1 has following import statements:
import os
import json
import pytz
import argparse
from datetime import datetime, timedelta
from time import time, sleep

I have installed pytz using pip and also included in requirements.txt file but still getting same error.

requirements.txt file has following content.
azure-functions
azure-identity
pytz
azure-keyvault-secrets
azure-common
azure-mgmt-datafactory
azure-storage-blob
Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-07-03T12:59:24.433+00:00

If you are using a virtualenv, could you double check if you installed the module in the same? Probably running the azure_pipelinev1.py file directly would help check if the module is installed correctly or not.
SRAVANTHI GAALI 1 Reputation point

2020-07-07T13:39:47.64+00:00

Tried to run azure_pipelinev1.py directly, didn't see any import errors with standard python packages like pytz. only if we import azure_pipelinev1, we are seeing import errors.
Pramod Valavala 20,656 Reputation points Microsoft Employee Moderator

2020-08-06T15:38:00.377+00:00

Apologies for not getting back on this. Were you able to resolve this? If not, please feel free to send an email to azcommunity[at]microsoft[dot]com with a link to this thread.

Answer 1

Amir Katz 80

I think the problem is the syntax of your import statement.

I have a similar situation - I have a main file (function_app.py) and 3 additional Python files. For example, one of them is called azure_blob_client.py. In it there is a class named AzureBlobCSV.

So in the main file I have the import statement shown below. As you can see, I just specify the file name, without any relative dot or dot-dot.

This works fine.

"""azure_blob_client.py - Azure Storage Blob interface."""
import logging
from azure.storage.blob import BlobServiceClient, ContentSettings

class AzureBlobCSV(object):
  yada-yada-yada

"""function_app.py - This is the main Azure Function file."""
import logging
from azure_blob_client import AzureBlobCSV

Amir Katz 80 Reputation points

2023-01-31T11:36:00.96+00:00
And of course, in the requirements.txt file I have this:

azure-functions azure-storage-queue azure-storage-blob

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Azure functions: Python Httptrigger with multiple script files

1 answer

Your answer