python nested for loop iteration

Question

I would like the inner for loop to give me one value and goes on to the next iteration for each outer loop. Appreciate your responds.

Currently the result:

• Personal NameJohn
• Personal NamePeter
• Personal Name123456
• ID #John
• ID #Peter
• ID #123456
• Emergency contactJohn
• Emergency contactPeter
• Emergency contact123456

Result should just be:

• ID #123456
• Personal NameJohn

• Emergency contactPeter

  employees={'ID #','Personal Name','Emergency contact'}
  excel={'123456',
   'John',
   'Peter'}
  for key in employees:
   for value in excel:
   print(key + value) 
  

Answer 1

Use zip to iterate over two objects at the same time.

note: you are using sets (created using {"set", "values"}) here. Sets have no order, so you should use lists (created using ["list", "values"]) instead.

for key, value in zip(employees, excel):
 print(key, value)

• Chrispresso: >>> type({'a','b'}) <class 'set'>
• Azsgy: what I meant is that using {} creates a set instead of a list
• Ajax1234: val = {} creates and empty dictionary, not set. For an empty set, use val = set()

Answer 2

You can use zip after changing the type of your input data. Sets order their original content, thus producing incorrect pairings:

employees=['ID #','Personal Name','Emergency contact']
excel=['123456', 'John','Peter']
new_data = [a+b for a, b in zip(employees, excel)]

Output:

['ID #123456', 'Personal NameJohn', 'Emergency contactPeter']

Answer 3

First of all, use square brackets [] instead of curly brackets {}. Then you could use zip() (see other answers) or use something very basic like this:

for i in range(len(employees)):
 print(employees[i], excel[i])

• wohe1: Indeed, I've changed it (I'm not native english)