Question

how to check if there are keys with the same values in a dictionary. python 3.0

for example:

data = {'size': 4, 'entrance':(0, 0), 'exit':(0,0)}

since the entrance and exit keys have the same value, i want the function to return None.

Answer 1

SOURCE CODE:

*Please follow the comments to better understand the code.

**Please look at the Screenshot below and use this code to copy-paste.

***The code in the below screenshot is neatly indented for better understanding.


def is_having_same_values(data):
    # Get all the values as follows
    values = data.values()
    print('All values are:', values)
    unique_values = set(values)
    print('Unique values are:', unique_values)
    if len(values) != len(unique_values):
        # Same values are exist
        print("ALL keys are having same values")
        return None
    else:
        # all are different
        return "ALL keys are having different values"


# test1
print('============== TEST 1 ===========')
data = {'size': 4, 'entrance': (0, 0), 'exit': (0, 0)}
print(is_having_same_values(data))

# test2
print('============== TEST 2 ===========')
data = {'size': 4, 'entrance': (0, 1), 'exit': (0, 0)}
print(is_having_same_values(data))

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