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github.com_openSUSE_osc/osc/meter.py
Marco Strigl 8a6abe3a6c warn user if python-progressbar is not installed
On ImportError have_pb_module is false and the class NoPBTextMeter gets
returned which prints "Please install progressbar module..." on TextMeter.start()
2019-01-08 17:39:13 +01:00

46 lines
1.2 KiB
Python

# Copyright (C) 2018 SUSE Linux. All rights reserved.
# This program is free software; it may be used, copied, modified
# and distributed under the terms of the GNU General Public Licence,
# either version 2, or (at your option) any later version.
try:
import progressbar as pb
have_pb_module = True
except ImportError:
have_pb_module = False
class PBTextMeter(object):
def start(self, basename, size=None):
if size is None:
widgets = [basename + ': ', pb.AnimatedMarker(), ' ', pb.Timer()]
self.bar = pb.ProgressBar(widgets=widgets, maxval=pb.UnknownLength)
else:
widgets = [basename + ': ', pb.Percentage(), pb.Bar(), ' ',
pb.ETA()]
self.bar = pb.ProgressBar(widgets=widgets, maxval=size)
self.bar.start()
def update(self, amount_read):
self.bar.update(amount_read)
def end(self):
self.bar.finish()
class NoPBTextMeter(object):
def start(self, *args, **kwargs):
print('Please install the progressbar module...')
def update(self, *args, **kwargs):
pass
def end(self, *args, **kwargs):
pass
if have_pb_module:
TextMeter = PBTextMeter
else:
TextMeter = NoPBTextMeter
# vim: sw=4 et