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Python

Posted by Mercedes Aker
Mercedes Aker
6,544 Points

What happened to, the sequence of "0,1,2,3..." ?

when you write the unpacking sequence, I noticed it doesn't follow the tradition computer lanugage of 0 being the first value, if this is the case, how does python know that when you write:

'var1, var2, var3' = unpacker()

equals: unpacker() return 'hey' h >>>> wouldn't this technically be 'var0' ?? e y

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,468 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points

Python uses 0-based indexing so zero is the first index.

The names of objects have no numbering restrictions.

var1 within the tuple var1, var2, var3 would be referenced by index 0:

>>> string = 'hey'
>>> string
‘hey’
>>> string[0]
‘h’
>>> v1, v2, v3 = string
>>> v1
‘h’
>>> (v1, v2, v3)
(‘h’, ‘e’, ‘y’)
>>> (v1, v2, v3)[0]
‘h’

Post back if you need more help. Good luck!!!

Mercedes Aker
Mercedes Aker
6,544 Points

That's helpful to know, thank you for sharing that, makes sense now