loop for dictionary in python 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 loop through dictionary

dictionary = {52:"E",126:"A",134:"B",188:"C",189:"D"}
for key, value in dictionary.items():
	print(key)
	print(value)

Example 3: 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 4: python loop through dictionary

new_list = [something(key, value) for key, value in a_dict.items()]

Example 5: python generate dictionary in loop

n = int(input())
ans = {i : i*i for i in range(1,n+1)}
print(ans)

Example 6: python generate dictionary in loop

n = int(input())
ans = {}
for i in range (1,n+1):
  ans[i] = i * i
print(ans)