How to add multiple values to a dictionary key in python

Question

I want to add multiple values to a specific key in a python dictionary  How can I do that  a      a  quot abc quot     1 a  quot abc quot     2  This will replace the value of a  quot abc quot   from 1 to 2  What I want instead is for a  quot abc quot   to have multiple values both 1 and 2

User · Answer

How about  a  abc      1  2    This will result in    gt  gt  gt  a   abc    1  2     Is that what you were looking for

User · Answer

Make the value a list  e g   a  abc      1  2   bob     UPDATE   There are a couple of ways to add values to key  and to create a list if one isn t already there  I ll show one such method in little steps   key    somekey  a setdefault key      a key  append 1    Results    gt  gt  gt  a   somekey    1     Next  try   key    somekey  a setdefault key      a key  append 2    Results    gt  gt  gt  a   somekey    1  2     The magic of setdefault is that it initializes the value for that key if that key is not defined  otherwise it does nothing  Now  noting that setdefault returns the key you can combine these into a single line   a setdefault  somekey      append  bob     Results    gt  gt  gt  a   somekey    1  2   bob      You should look at the dict methods  in particular the get   method  and do some experiments to get comfortable with this

[python] How to add multiple values to a dictionary key in python?

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