A question from duels. Why the second cycle "for" is not working? I don't know what to search for.

Question

def Count_to_5():
for i in range(1,6):
yield(i)
a = Count_to_5()
n = 0
for i in a:
n += 1
print(n)
for i in a: {why this is not working?}
n -= 1
print(n)
>>5
>>5

Answer 1

Generators are iterators, a kind of iterable you can only iterate over once.
Generators do not store all the values in memory, they generate the values on the fly... 🕊️🦋🦅

so after using a in 1st for loop...
it's value becomes [] empty...
so 2nd for loop is not executed...
so value of n remains the same 5

Answer 2

thank you for answering. So much to learn here.