Python CLI progressbar

progress.py

class ProgressBar():
    def __init__(self, size, finishedChar='#', unfinishedChar='-'):
        self.size = size
        self.finishedChar = finishedChar
        self.unfinishedChar = unfinishedChar

    def update(self, percent):
        ratio_0 = math.floor(percent / (100 / self.size))
        ratio_1 = self.size - ratio_0
        sys.stdout.write("\r|" + self.finishedChar*ratio_0 + self.unfinishedChar*ratio_1 + "| " + str(math.floor(percent)) + "%")

    def remove(self):
        sys.stdout.write("\r")