I have a file with functions:

modules.py:

```
def a(str):
    return str + ' A'

def b(str):
    return str + ' B'

```

I want to perform these functions in cycle. Something like:

main.py:

```
import modules

modules_list = [modules.a, modules.b]
hello = 'Hello'

for m in modules_list:
    print m(hello)

```

The result should be:

```
>>> Hello A
>>> Hello B

```

This code is work. I do not want to use decorators, because too much functions in `modules.py`.
What is the best way? Thanks.