Python map object is not subscriptable

Question

Why does the following script give the error   payIntList i    payIntList i    1000 TypeError   map  object is not subscriptable    payList      numElements   0  while True          payValue   raw input  Enter the pay amount             numElements   numElements   1         payList append payValue          choice   raw input  Do you wish to continue y n             if choice     n  or choice     N                            break  payIntList   map int payList   for i in range numElements            payIntList i    payIntList i    1000          print payIntList i

User · Accepted Answer

In Python 3  map returns an iterable object of type map  and not a subscriptible list  which would allow you to write map i   To force a list result  write   payIntList   list map int payList     However  in many cases  you can write out your code way nicer by not using indices  For example  with list comprehensions   payIntList    pi   1000 for pi in payList  for pi in payIntList      print pi

User · Answer

map   doesn t return a list  it returns a map object    You need to call list map  if you want it to be a list again   Even better   from itertools import imap payIntList   list imap int  payList     Won t take up a bunch of memory creating an intermediate object  it will just pass the ints out as it creates them   Also  you can do if choice lower       n   so you don t have to do it twice   Python supports     you can do payIntList i     1000 and numElements    1 if you want   If you really want to be tricky   from itertools import count for numElements in count 1       payList append raw input  Enter the pay amount          if raw input  Do you wish to continue y n     lower       n            break   and   or  for payInt in payIntList      payInt    1000     print payInt   Also  four spaces is the standard indent amount in Python

[python] Python map object is not subscriptable

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