uox3/spidermonkey/tests/progressbar.py

35 lines
1.1 KiB
Python

# Text progress bar library, like curl or scp.
import sys, datetime
class ProgressBar:
def __init__(self, label, limit, label_width=12):
self.label = label
self.limit = limit
self.label_width = label_width
self.cur = 0
self.t0 = datetime.datetime.now()
self.barlen = 64 - self.label_width
self.fmt = '\r%-' + str(label_width) + 's %3d%% %-' + str(self.barlen) + 's| %6.1fs'
def update(self, value):
self.cur = value
pct = int(100.0 * self.cur / self.limit)
barlen = int(1.0 * self.barlen * self.cur / self.limit) - 1
bar = '='*barlen + '>'
dt = datetime.datetime.now() - self.t0
dt = dt.seconds + dt.microseconds * 1e-6
sys.stdout.write(self.fmt % (self.label[:self.label_width], pct, bar, dt))
sys.stdout.flush()
def finish(self):
self.update(self.limit)
sys.stdout.write('\n')
if __name__ == '__main__':
pb = ProgressBar('test', 12)
for i in range(12):
pb.update(i)
time.sleep(0.5)
pb.finish()