OK sorry for the late reply. What you want is a range: https://docs.python.org/3.3/library/stdtypes.html?highlight=range#range
for i in range(1, 11): print(i)
This will give the output you are looking for. The range() function is an iterable, more about that can be read here: https://python.land/deep-dives/python-iterator
Alternatively, you can use a list of numbers. Something like
for i in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]:.
But the example I gave you used a string, and with the for loop you iterate over the letters. Python sees those as strings, not as numbers.