How to change values of a Python dictionary?

Today, We want to share with you python change dictionary value.In this post we will show you Python Dictionary update(), hear for python dictionary update if key exists we will give you demo and example for implement.In this post, we will learn about How To Add / Append Key:value Pair To Dictionary In Python? with an example.

Python Change Values in a Dictionary

The syntax of update() is:

dict.update([other])


Change the “year” to 2022:

Read Also:  Python : How to Check if an item exists in list ? | python list contains

Example 1:

thisdict =	{
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}

thisdict["year"] = 2022

print(thisdict)

Example : Working of update()

d = {1: "one", 2: "three"}
d1 = {2: "two"}

# updates the value of key 2
d.update(d1)
print(d)

d1 = {3: "three"}

# adds data value with key 3
d.update(d1)
print(d)

Example : update() When Tuple is Passed

d = {'x': 2}

d.update(y = 3, z = 0)
print(d)

Example

players_id = {
   'virat': 42,
   'rohit': 12.5
}
new_var = players_id['virat']
print(new_var)

Example

players_id  =  {
   'virat': 42,
   'rohit': 12.5
}
players_id['virat']  =  "Welcome"
print(players_id['virat'])

I hope you get an idea about python update dictionary value list.
I would like to have feedback on my infinityknow.com blog.
Your valuable feedback, question, or comments about this article are always welcome.
If you enjoyed and liked this post, don’t forget to share.