TypeError dict object is not callable

Question

I m trying to loop over elements of an input string  and get them from a dictionary  What am I doing wrong   number map     1  -3  2  -2  3  -1  4  1  5  2  6  3   input str   raw input  Enter something     strikes    number map int x   for x in input str split        strikes     number map int x   for x in input str split    TypeError   dict  object is not callable

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The syntax for accessing a dict given a key is number map int x    number map int x   would actually be a function call but since number map is not a callable  an exception is raised

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Access the dictionary with square brackets   strikes    number map int x   for x in input str split

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You need to use    to access elements of a dictionary  Not         number map     1  -3  2  -2  3  -1  4  1  5  2  6  3   input str   raw input  Enter something     strikes    number map int x   for x in input str

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strikes     number map int x   for x in input str split     You get an element from a dict using these    brackets  not these

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strikes     number map int x   for x in input str split      Use square brackets to explore dictionaries

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it s number map int x    you tried to actually call the map with one argument

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A more functional approach would be by using dict get  input nums    int in str  for in str in input str split    strikes   list map number map get  input nums split       One can observe that the conversion is a little clumsy  better would be to use the abstraction of function composition   def compose2 f  g       return lambda x  f g x    strikes   list map compose2 number map get  int   input str split      Example   list map compose2 number map get  int     1    2    7     Out 29    -3  -2  None    Obviously in Python 3 you would avoid the explicit conversion to a list  A more general approach for function composition in Python can be found here    Remark  I came here from the Design of Computer Programs Udacity class  to write    def word score word        The sum of the individual letter point scores for this word       return sum map POINTS get  word

User · Answer

You need to use   number map int x     Note the square brackets

[python] TypeError: 'dict' object is not callable

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