# 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)