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