python append to list with key code example

Example 1: python dictionary of lists append

# Creating an empty dictionary 
myDict = {} 
  
# Adding list as value 
myDict["key1"] = [1, 2] 
  
# creating a list 
lst = ['Geeks', 'For', 'Geeks'] 
  
# Adding this list as sublist in myDict 
myDict["key1"].append(lst) 

# Print Dictionary
print(myDict)

Example 2: how to append to a dictionary in python

d = {'a': 1, 'b': 2}
print(d)
d['a'] = 100  # existing key, so overwrite
d['c'] = 3  # new key, so add
d['d'] = 4
print(d)

Example 3: Python dictionary append

# to add key-value pairs to a dictionary:

d1 = {
	"1" : 1,
	"2" : 2,
  	"3" : 3
} # Define the dictionary

d1["4"] = 4 # Add key-value pair "4" is key and 4 is value

print(d1) # will return updated dictionary