Kindly could you explain this part**while len(bad_guesses) < 7 and len(good_guesses) != len(secret_letter):**please.

There's two things being tested there at the same time. The first is "len(bad_guesses) < 7" which is checking that the number of misses is less than 7 (otherwise the player loses). The other test is "len(good_guesses) != len(secret_letter)" and "!=" is the inequality comparison (it means "is not equal to"). So this test is checking that the number of good guesses is not the same as the number of letters in "secret_letter" (otherwise the player has won). Either way, it would mean the game is over which is what the entire expression is testing.

Note that comparing good guesses with the word size only works if every letter in the word is different. You would need different logic to correctly determine a win of the word had multiples of any letter (like "color").

I can't seem to wrap my head around this concept. Wouldn't you want to make good_guesses = secret_word to show that they player won?