def start_parce(z):
    print("что-нибудь специфическое, например Z = ", z)

 # это главная программа
list_files = ["file_01","file_02",... "file_10"]
for i in list_files:
    [x, y] = file_XXX.start_parce(z)

   
_register = []
  
  
def service(func):
    _register.append(func)
    return func
  
  
def get_all():
    return _register
  
@service
def func1():
    print("func1")
  
@service
def func2():
    print("func2")
  
  
for func in get_all():
    func()

 def f1(x):
    print("квадрат х = ", x**2)
def f2(x):
    print("печатаем х+100 = ", x + 100)
def f3(x):
    print("печатаем х+999 = ", x + 999)
list_functions = {"f1":f1, "f2":f2, "f3":f3}
list_keys = list(list_functions.keys())
list_keys.sort()
for i in list_keys:
    x = list_functions[i](5)
    print(x)
    input()

 list_functions = [("f1",f1), ("f2",f2), ("f3",f3)]
print([ x(5) for x in list_functions ])

 def f1(x):
    print("квадрат х = ", x**2)
def f2(x):
    print("печатаем х+100 = ", x + 100)
def f3(x):
    print("печатаем х+999 = ", x + 999)
list_functions = [("f1",f1), ("f2",f2), ("f3",f3)]
for x in list_functions:
    print([x(5)])

 Traceback (most recent call last):
  File "E:\Python\Learning\test1.py", line 10, in <module>
    print([x(5)])
TypeError: 'tuple' object is not callable

 ...
list_functions = (f1, f2, f3)
for x in list_functions:
    print(x(5))

 from importlib import import_module
li=["a","b","c"]
module_list=[import_module(i) for i in li]
for i in module_list:
    i.f()

 >>> def f1(a): return a+1
...
>>> def f2(a): return a+2
...
>>> def f3(a): return a+3
...
>>> lst = [f1, f2, f3]
>>> [ x(5) for x in lst ]
[6, 7, 8]