get key in dictionary python code example

Example 1: python get dictionary keys

# To get all the keys of a dictionary use 'keys()'
newdict = {1:0, 2:0, 3:0}
newdict.keys()
# Output:
# dict_keys([1, 2, 3])

Example 2: get function in dictionary

#The get() method in  dictionary returns:
#the value for the specified key if key is in dictionary.
#None if the key is not found and value is not specified.
#value if the key is not found and value is specified.
# value is provided
print('Salary: ', person.get('salary', 0.0))

Example 3: how to get key of a particular value in dictionary python using index

mydict = {'george': 16, 'amber': 19}
print(list(mydict.keys())[list(mydict.values()).index(16)])  # Prints george

Example 4: find a key in a dictionary python

# How to find a key / check if a key is in a dict

# Easiest way
fruits = {'apple': 2, 'pear': 5, 'strawberry': 3}

if 'apple' in fruits:
	print("Key found!")
else:
  	print("Key not found!")

Example 5: find key by value python

print(list(d.keys())[list(d.values()).index(990)])