why (round (2.675,2))=2.67?

Question

print (round(1.5))
#2
print (round (2.665))
#3
print (round (2.665,2))
#2.67
print (round (2.675,2))
#2.67(why not 2.68?)

Answer 1

It's not an error. Check the python docs:
https://docs.python.org/3/library/functions.html#round
Also compare to numpy.round():
https://code.sololearn.com/cEzK1wGDSAXW/?ref=app