I have some code that prints data from a global dictionary named
def show_todo(): for key, value in cal.items(): print(value, key)
However, I want to use this code as part of a Discord bot. In order for the bot to work properly, I need to
return the data to another function that will actually send the message to the Discord chat. Using
I tried to fix it by using
def show_todo(): for key, value in cal.items(): return(value, key)
but this way, the for loop does not work properly. I only get at most one key-value pair from the dictionary.
How can I fix this so that all of the data is returned?
return inside of a loop will break it and exit the function even if the iteration is still not finished.
def num(): # Here there will be only one iteration # For number == 1 => 1 % 2 = 1 # So, break the loop and return the number for number in range(1, 10): if number % 2: return number >>> num() 1
In some cases we need to break the loop if some conditions are met. However, in your current code, breaking the loop before finishing it is unintentional.
Instead of that, you can use a different approach:
def show_todo(): # Create a generator for key, value in cal.items(): yield value, key
You can call it like:
a = list(show_todo()) # or tuple(show_todo())
or you can iterate through it:
for v, k in show_todo(): ...
Append your data to a list, then return it after the end of your loop:
def show_todo(): my_list =  for key, value in cal.items(): my_list.append((value, key)) return my_list
Or use a list comprehension:
def show_todo(): return [(value, key) for key, value in cal.items()]