Python - Count elements in list

Question

I am trying to find a simple way of getting a count of the number of elements in a list   MyList     a    b    c     I want to know there are 3 elements in this list

User · Answer

len myList  should do it   len works with all the collections  and strings too

User · Answer

len     gt  gt  gt  someList     gt  gt  gt  print len someList  0

User · Answer

To find count of unique elements of list use the combination of len   and set      gt  gt  gt  ls    1  2  3  4  1  1  2   gt  gt  gt  len ls  7  gt  gt  gt  len set ls   4

User · Answer

Len won t yield the total number of objects in a nested list  including multidimensional lists   If you have numpy  use size     Otherwise use list comprehensions within recursion

User · Answer

just do len MyList   This also works for strings  tuples  dict objects

User · Answer

len      it will count the element in the list  tuple and string and dictionary  eg    gt  gt  gt  mylist    1 2 3   list  gt  gt  gt  len mylist  3  gt  gt  gt  word    hello    string   gt  gt  gt  len word  5  gt  gt  gt  vals     a  1  b  2   dictionary  gt  gt  gt  len vals  2  gt  gt  gt  tup    4 5 6    tuple   gt  gt  gt  len tup  3   To learn Python you can use byte of python   it is best ebook for python beginners

User · Answer

You can get element count of list by following two ways    gt  gt  gt  l     a   b   c    gt  gt  gt  len l  3      gt  gt  gt  l   len      3

[python] Python - Count elements in list

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