CODEWITHSUNDEEP
pythonpython-3.xloopsdictionary
Buffylvr
Buffylvr

Reputation: 49

How to loop over a list of dicts and print values of a specific key?

I'm new to Python and have (what I know to be a very simple) question.

Running Python 3.4.

I have a list that I need to iterate over and pull specific information out. Here is a sample (truncated, many thousands of items) of the list (called parts):

[{'state': 'DEAD',
  'id': 'phwl',
  'type_name': 'GAME',
  'unit_structure': 'lattice',
  'vendor': 'Downward',
  'type_id': 'shiftable'
  'weight': 'heavy'},
 {'state': 'ALIVE',
  'id': 'a06c5',
  'type_name': 'BOARD',
  'unit_structure': 'frame',
  'vendor': 'Sniggles',
  'weight': 'light'}]

I want to do this using a for loop where I pull just the value after the 'id' key and print it to my console. A simple for loop looks like this:

for i in parts:
    print(i)

This, of course, prints all the information in the parts list again, which isn't what I want.

So I need to do something like:

for i in parts:
    i = 'id'
    print(i)

This isn't correct because it just prints:

id
id
id
id
....etc

So I need to do something where I tell it "every time you see 'id', print the value after it, but I'm unsure how to structure that loop.

Can anyone give me some guidance?

Upvotes: 0

Views: 2458

Answers (1)

Rakesh
Rakesh

Reputation: 82765

If I understood you correctly. You are looking for fetching a value using key from a dict.

Ex:

for i in parts:
    print(i["id"])   #or print(i.get("id"))

Output:

phwl
a06c5

MoreInfo in Python Dictionaries

Upvotes: 2

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