Python Array with String Indices

Question

Is it possible to use strings as indices in an array in python   For example   myArray      myArray  john      johns value  myArray  jeff      jeffs value  print myArray  john

User · Answer

Even better  try an OrderedDict  assuming you want something like a list    Closer to a list than a regular dict since the keys have an order just like list elements have an order   With a regular dict  the keys have an arbitrary order   Note that this is available in Python 3 and 2 7   If you want to use with an earlier version of Python you can find installable modules to do that

User · Answer

What you want is called an associative array  In python these are called dictionaries      Dictionaries are sometimes found in other languages as    associative memories    or    associative arrays     Unlike sequences  which are indexed by a range of numbers  dictionaries are indexed by keys  which can be any immutable type  strings and numbers can always be keys     myDict      myDict  john      johns value  myDict  jeff      jeffs value    Alternative way to create the above dict   myDict     john    johns value    jeff    jeffs value     Accessing values   print myDict  jeff        gt   jeffs value    Getting the keys  in Python v2    print myDict keys        gt    john    jeff     In Python 3  you ll get a dict keys  which is a view and a bit more efficient  see views docs and PEP 3106 for details    print myDict keys        gt  dict keys   john    jeff         If you want to learn about python dictionary internals  I recommend this  25 min video presentation  https   www youtube com watch v C4Kc8xzcA68  It s called the  The Mighty Dictionary

[python] Python Array with String Indices

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