Fractions are accurate

fractions.py

def segments_float(size, parts):
    end = 0.0
    part = size / parts
    for n in range(parts):
        start = int(end)
        end += part
        print(str(n) * int(end - start), end="")
    print()


from fractions import Fraction


def segments_fraction(size, parts):
    end = Fraction(0)
    part = Fraction(size, parts)
    for n in range(parts):
        start = int(end)
        end += part
        print(str(n) * int(end - start), end="")
    print()


SIZE = 24
PARTS = 7
print("-" * SIZE)
segments_float(SIZE, PARTS)
segments_fraction(SIZE, PARTS)