Question

• I have a dictionary with key-value pairs like {a : (b,c,d,e)}.
• If i encounter a tuple (b,c,d,e), i want to lookup in dictionary, the key having the same tuple as a value and delete that key from the dictionary. Can it be done like this in python?

Answer 1

use list(),set(), or tuple() because list(dict)or tuple(dict) or set(dict) returns the keys of a dictionary and you can iterate over these returned keys and pop items from the dictionary,
And as Lattyware suggested ,to stop the iteration after removal of one value use break statement after pop().

div={'a':(1,2,3,4),'b':[1,2],'c':(1,2,3,4)}
tup=(1,2,3,4)
for x in set(div):
    if div[x]==tup:
        div.pop(x)

print(div)        

{'b': [1,2]}