How to print a dictionary line by line in Python

Question

This is the dictionary  cars     A    speed  70           color  2            B    speed  60           color  3     Using this for loop  for keys values in cars items        print keys      print values    It prints the following   B   color   3   speed   60  A   color   2   speed   70    But I want the program to print it like this   B color   3 speed   60 A color   2 speed   70   I just started learning dictionaries so I m not sure how to do this

User · Answer

You have a nested structure  so you need to format the nested dictionary too   for key  car in cars items        print key      for attribute  value in car items            print           format attribute  value     This prints   A color   2 speed   70 B color   3 speed   60

User · Answer

Check the following one-liner   print   n  join   s n s     key1    n  join   s    r     key2 val2  for  key2 val2  in val1 items      for  key1 val1  in cars items       Output   A speed   70 color   2 B speed   60 color   3

User · Answer

for car info in cars items        print car      for key value in info items            print key       value

User · Answer

I prefer the clean formatting of yaml  import yaml print yaml dump cars    output  A    color  2   speed  70 B    color  3   speed  60

User · Answer

You could use the json module for this  The dumps function in this module converts a JSON object into a properly formatted string which you can then print   import json  cars     A    speed  70   color  2            B    speed  60   color  3    print json dumps cars  indent   4     The output looks like         A              color   2           speed   70             B              color   3           speed   60           The documentation also specifies a bunch of useful options for this method

User · Answer

Here is my solution to the problem  I think it s similar in approach  but a little simpler than some of the other answers  It also allows for an arbitrary  number of sub-dictionaries and seems to work for any datatype  I even tested it on a dictionary which had functions as values    def pprint web  level       for k v in web items            if isinstance v  dict               print   t  level  f  k                  level    1             pprint v  level              level -  1         else              print   t  level  k        v

User · Answer

This will work if you know the tree only has two levels   for k1 in cars      print k1      d   cars k1      for k2 in d         print k2       d k2

User · Answer

newbie exact answer desired  Python v3                                            cars     A    speed  70           color  2            B    speed  60           color  3        for keys  values in  reversed sorted cars items          print keys      for keys values in sorted values items             print keys        values       Output  B color     3 speed     60 A color     2 speed     70     Finished in 0 073s

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Declare and Initialize Map map       map   New     1 map   to     1 map   Python     5 map   or     2    Print Statement for i in map    print      i       map i       New   1    to   1    Python   5    or   2

User · Answer

Modifying MrWonderful code  import sys  def print dictionary obj  ident       if type obj     dict          for k  v in obj items                sys stdout write ident              if hasattr v     iter                      print k                 print dictionary v  ident                     else                  print   s    s     k  v      elif type obj     list          for v in obj              sys stdout write ident              if hasattr v     iter                      print dictionary v  ident                     else                  print v     else          print obj

User · Answer

pprint pprint   is a good tool for this job    gt  gt  gt  import pprint  gt  gt  gt  cars     A    speed  70               color  2                B    speed  60               color  3    gt  gt  gt  pprint pprint cars  width 1    A     color   2          speed   70     B     color   3          speed   60

User · Answer

for x in cars      print  x      for y in cars x           print  y     cars x  y     output   A color   2 speed   70 B color   3 speed   60

User · Answer

A more generalized solution that handles arbitrarily-deeply nested dicts and lists would be   def dumpclean obj       if isinstance obj  dict           for k  v in obj items                if hasattr v     iter                      print k                 dumpclean v              else                  print   s    s     k  v      elif isinstance obj  list           for v in obj              if hasattr v     iter                      dumpclean v              else                  print v     else          print obj   This produces the output   A color   2 speed   70 B color   3 speed   60   I ran into a similar need and developed a more robust function as an exercise for myself   I m including it here in case it can be of value to another   In running nosetest  I also found it helpful to be able to specify the output stream in the call so that sys stderr could be used instead   import sys  def dump obj  nested level 0  output sys stdout       spacing             if isinstance obj  dict           print  gt  gt  output    s       nested level    spacing          for k  v in obj items                if hasattr v     iter                      print  gt  gt  output    s s       nested level   1    spacing  k                  dump v  nested level   1  output              else                  print  gt  gt  output    s s   s      nested level   1    spacing  k  v          print  gt  gt  output    s      nested level   spacing      elif isinstance obj  list           print  gt  gt  output    s       nested level    spacing          for v in obj              if hasattr v     iter                      dump v  nested level   1  output              else                  print  gt  gt  output    s s      nested level   1    spacing  v          print  gt  gt  output    s       nested level    spacing      else          print  gt  gt  output    s s     nested level   spacing  obj    Using this function  the OP s output looks like this        A             color  2       speed  70         B             color  3       speed  60          which I personally found to be more useful and descriptive     Given the slightly less-trivial example of     test     1 3     test2    1 2   3 4    test3     1 2    abc    def    ghi    4 5   def      The OP s requested solution yields this   test 1   3 test3  1  2  abc def ghi  4  5    def test2  1  2   3  4    whereas the  enhanced  version yields this        test                        1  3                 test3              1  2                    abc          def          ghi                4  5   def         test2              1  2         3  4           I hope this provides some value to the next person looking for this type of functionality

[python] How to print a dictionary line by line in Python?

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