Track 4 · Lesson 9 of 11

enumerate() and zip(): positions and parallel data

Get each item together with its position using enumerate(), and walk through two sequences side by side with zip().

You will be able to

• Number items with enumerate(), starting from 0 or from 1
• Unpack two loop variables in a for statement
• Loop over two related sequences together with zip()
• Explain what zip() does when the sequences have different lengths