Get all functions inside a Python Package for getattr

Question

I have two python files and both at same directory level like this

project
      |> tasks.py
      |> queue.py

I have a function like this in tasks.py file

def foo(message):
    # perform some functions on message data
    # blah blah

and another function in queue.py file like this

import project.tasks
def run_task(function_name, data):
    # function name is a string which tells which function to call in tasks.py file
    return getattr(project.tasks, function_name)(data)

I do not want to hard code my function name. I want to access them dynamically on the basis of function_name parameter. My tasks.py has become very large therefore I want to divide it in parts. The thing which I did is I moved tasks.py file in a python package like this.

project
      |> tasks
              |> __init__.py
              |> tasks.py
      |> queue.py

The question which I want to ask is that how I can modify my run_task function in order to work for this struction. As getattr function task first argument an object. Is there any other option avilable which I can used to access function inside task package.?

You shouldn't need to modify `run_tasks`, just `from .tasks import *` in the `__init__.py` to expose all names in `tasks.py` from the `tasks`module. — jonrsharpe, Jun 29 '16 at 09:28
If I do `from .tasks import *` I get error `import * only allowed at module level`. In my case, i want to change tasks module to tasks package. — Muhammad Hassan, Jun 29 '16 at 09:32
Error from what? Is that a linter of some kind? Which, and which version of Python are you using? Could you give a [mcve] will the full output? — jonrsharpe, Jun 29 '16 at 09:33
Yes, of course it can have multiple files, so you have an `import `line *for each file* in the `__init__.py`. — jonrsharpe, Jun 29 '16 at 09:34
Oh.... I got it. I was not correctly following your answer. Let me try it. — Muhammad Hassan, Jun 29 '16 at 09:36
@jonrsharpe Thanx it works. Kindly post your comment as answer and I will accept it. Thanx again. — Muhammad Hassan, Jun 29 '16 at 09:41

score 0 · Accepted Answer · answered Jun 29 '16 at 10:59

0

Answer from @jonrsharpe comment. Put following in in the __init__.py

from .tasks import *

to expose all names in tasks.py from the tasks module. Do it for all files you have in tasks package.

answered Jun 29 '16 at 10:59

Muhammad Hassan

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Get all functions inside a Python Package for getattr

1 Answers1