by BehindJava
Write a program to Remove the Given Key from a Dictionary in Python
In this tutorial we are going to learn about removing the Given Key from a Dictionary in Python.
Python Program to Remove the Given Key from a Dictionary
d = {'a':1,'b':2,'c':3,'d':4}
print("Initial dictionary")
print(d)
key=raw_input("Enter the key to delete(a-d):")
if key in d:
del d[key]
else:
print("Key not found!")
exit(0)
print("Updated dictionary")
print(d)
Explanation
- User must enter the key to be checked and store it in a variable.
- An if statement and the in operator is used check if the key is present in the dictionary.
- If it is present, the key-value pair is deleted.
- If it isn’t present, “Key not found!” is printed and the program is exited.