How to append list item to the return function-CodePudding

     def tab():
        .......
     return[a,b,c,d]
     [a,b,c,d] = tab()

How can I append a list to the defined function. I want to attach Z to the a, b, c and d.
This is the function that I've defined but not sure how to append to the returned list.

    reg = ['Z'] 
    df_dict = {} 
    for item in reg:
         df_dict[item].append(a)

CodePudding user response：

If you want to change the value in the function, and not just get the value returned by the function and add to it, your approach should be this:

val = [a,b,c,d]

def tab():
    global val 
    return val

reg = ['Z'] 
    for item in reg:
        val.append(item)

CodePudding user response：

Your tab() function return a list and you want to append something to it.

Therefore:

def tab():
    return [1,2,3,4]

(list_ := tab()).append('Z')

print(list_)

Output:

[1, 2, 3, 4, 'Z']