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Question

words = ["hello", "world", "spam", "eggs"]
for word in words:
print ("word"+ "!")
here can i write. for numbers in words.
if not why...

Answer 1

Of course you can.
word is just an iterating variable, you can name it anything you like. Good practice to name it by singular form of the iterable's name, just for better readability. But can as well be i, a or sjfj_rjrj45.