printing a single value of a list with enumerate function

I have the following statement:

for i, char in enumerate(list(range(100))):

now i just want to print the value, where char is equal to 50.

I have tried the following idea, but did not understand why it is incorrect:

for i, char in enumerate(list(range(100))):

  char == 50

  print(i)

The solution is that I have to put an "if" statement, i already understood the logic behind it but also want to ask, why my approach is not valid.

Thanks for helping in advance.