python - apply Operation on multiple variables

Question

I know that this is a rather silly question and there are similar ones already answered, but they don\'t quite fit, so... How can I perform the same operation on multiple variab

Answer 1

You can store them in a container, and then use map to apply one function on every element of the container
For example with a list:

def function_to_apply(element):
    return element*2

# Define variables and store them in a container
a,b,c = 1,2,3
container = (a,b,c)

# Apply the function on every element with map
container = tuple(map(function_to_apply, container))
a,b,c = container

This can also be done with lambda functions to avoid defining a new function every time

# Define variables and store them in a container
a,b,c = 1,2,3
container = (a,b,c)

# Apply the function on every element with map
container = tuple(map(lambda x: x*2, container))
a,b,c = container

If you have a really large set of variables and you want to retrieve them automatically without having to type each one of them like in a,b,c = container, you can use dict to store them with names or exec function to assign them dynamically.

map documentation: https://docs.python.org/3/library/functions.html#map
lambda documentation: https://docs.python.org/3/reference/expressions.html#grammar-token-lambda-expr