Can anyone explain the output of the below mentioned code??

Question

my_dict = {True:'yes',1:'no',1.0:'maybe'}
print(my_dict)

Output: { True : 'maybe'}

I'm not able to understand why the entire dictionary is not printed as the output

Answer 1

It is actually pretty confusing due to the fact that you are using keywords and mixing integers with decimals.

Python does a lot of stuff the way it wants it to. I would prefer a more explicit definition.

Try using keys and values that you can easily follow, like names and ages.

Answer 2

I think dictionaries filter their key duplicates by their equality.

Answer 3

Thank you for your explanation... But i'm still confused😅
Why the keyword True is printed with output 'maybe' and not with its original value 'yes' ?!

Answer 4

Actually this question was asked in a challenge... But I agree that booleans should not be used as keys in a dictionary.

Answer 5

SC Sharma it could be because you 1.0:'maybe' was put there later and program treated it as reassigning to True:'yes', because 1.0 == True.

Answer 6

It's a terrible question hahah. You can use online python compilers to try the challenges later

Answer 7

Try this format (released is the dict).
released = {

    "iphone 3G" : 2008,

    "iphone 3GS" : 2009,

    "iphone 4" : 2010,

    "iphone 4S" : 2011,

    "iphone 5" : 2012

  }

print(released) # Outputs all keys and values

print(len(released)) # Outputs 5

print("iphone" in released) # Prints False

print("iphone 5" in released) # Prints True