python iterate dictionary key value code example

Example 1: python iterate dictionary key value

a_dict = {'color': 'blue', 'fruit': 'apple', 'pet': 'dog'}
for key, value in a_dict.items():
  print(key, '->', value)

Example 2: python iterate through dictionary

a_dict = {'apple':'red', 'grass':'green', 'sky':'blue'}
for key in a_dict:
  print key # for the keys
  print a_dict[key] # for the values

Example 3: loop through the dictionary python

>>> objects = ['blue', 'apple', 'dog']
>>> categories = ['color', 'fruit', 'pet']
>>> a_dict = {key: value for key, value in zip(categories, objects)}
>>> a_dict
{'color': 'blue', 'fruit': 'apple', 'pet': 'dog'}

Example 4: enumerate dictionary python

# Iterate over dictionary using enumerate()

mydict = {
	"one": 1,
  	"two": 2,
  	"three": 3
}

# You can replace `index` with an underscore to ignore the index 
# value if you don't plan to use it.
for index, item in enumerate(mydict):
	print(f"{item}: {mydict.get(item)}")

# OUTPUT:
# one: 1
# two: 2
# three: 3

Example 5: iterate through keys in dictionary

for key in dictionary_name: