My code works perfectly in terminal and jupyter notebook.

This isn't a pangram! ---> In codewars, it produced True, in terminal, it produced False
abcdefghijklmopqrstuvwxyz ---> In codewars, it produced True, in terminal, it produced False

My code passed 18 and failed 198,

Grfg should equal Grfg -----> Passed...All passed cases falls under this category...Return lowercase for lowercasse and uppercase for uppercase
'16rxbnQ435IE4okh' should equal '16RXBNQ435IE4OKH' ----> Failed....All failed cases falls under this category...return all in uppercase only

now for which logic should i write a code? Should I change all alphabets to uppercase?

edit: Code in python 3.6

there is no value for '' in your dict1