How can I get list of values from dict

Question

How can I get a list of the values in a dict in Python   In Java  getting the values of a Map as a List is as easy as doing list   map values      I m wondering if there is a similarly simple way in Python to get a list of values from a dict

User · Accepted Answer

Yes it s the exact same thing in Python 2   d values     In Python 3  where dict values returns a view of the dictionary   s values instead    list d values

User · Answer

Follow the below example --  songs       title    happy birthday    playcount   4     title    AC DC    playcount   2     title    Billie Jean    playcount   6     title    Human Touch    playcount   3     print                         print f Songs -- gt   songs   n   title   list map lambda x   x  title    songs   print f Print Title -- gt   title     playcount   list map lambda x   x  playcount    songs   print f Print Playcount -- gt   playcount    print  f Print Sorted playcount -- gt   sorted playcount        Aliter - print sorted list map lambda x  x  playcount   songs

User · Answer

You can use   operator to unpack dict values    gt  gt  gt  d    1   a   2   b    gt  gt  gt    d values      a    b     or list object   gt  gt  gt  d    1   a   2   b    gt  gt  gt  list d values      a    b

User · Answer

out  dict values   1 a  2 b     in   str dict values    14 -3      out  1 a  2 b   Purely for visual purposes  Does not produce a useful product    Only useful if you want a long dictionary to print in a paragraph type form

User · Answer

There should be one - and preferably only one - obvious way to do it    Therefore list dictionary values    is the one way   Yet  considering Python3  what is quicker     L  vs     extend L  vs  list L   small ds    x  str x 42  for x in range 10   small df    x  float x 42  for x in range 10    print  Small Dict str     timeit   small ds values     timeit    extend small ds values     timeit list small ds values     print  Small Dict float     timeit   small df values     timeit    extend small df values     timeit list small df values     big ds    x  str x 42  for x in range 1000000   big df    x  float x 42  for x in range 1000000    print  Big Dict str     timeit   big ds values     timeit    extend big ds values     timeit list big ds values     print  Big Dict float     timeit   big df values     timeit    extend big df values     timeit list big df values      Small Dict str  256 ns    3 37 ns per loop  mean    std  dev  of 7 runs  1000000 loops each  338 ns    0 807 ns per loop  mean    std  dev  of 7 runs  1000000 loops each  336 ns    1 9 ns per loop  mean    std  dev  of 7 runs  1000000 loops each   Small Dict float  268 ns    0 297 ns per loop  mean    std  dev  of 7 runs  1000000 loops each  343 ns    15 2 ns per loop  mean    std  dev  of 7 runs  1000000 loops each  336 ns    0 68 ns per loop  mean    std  dev  of 7 runs  1000000 loops each   Big Dict str  17 5 ms    142   s per loop  mean    std  dev  of 7 runs  100 loops each  16 5 ms    338   s per loop  mean    std  dev  of 7 runs  100 loops each  16 2 ms    19 7   s per loop  mean    std  dev  of 7 runs  100 loops each   Big Dict float  13 2 ms    41   s per loop  mean    std  dev  of 7 runs  100 loops each  13 1 ms    919   s per loop  mean    std  dev  of 7 runs  100 loops each  12 8 ms    578   s per loop  mean    std  dev  of 7 runs  100 loops each    Done on Intel R  Core TM  i7-8650U CPU   1 90GHz     Name                    Version                   Build ipython                   7 5 0            py37h24bf2e0 0   The result   For small dictionaries   operator is quicker For big dictionaries where it matters list   is maybe slightly quicker

[python] How can I get list of values from dict?

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