graphstats: Fix matplotlib import error
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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@ -51,6 +51,7 @@ def parse_log(logname, mcu):
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return out
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def setup_matplotlib(output_to_file):
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global matplotlib
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if output_to_file:
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matplotlib.use('Agg')
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import matplotlib.pyplot, matplotlib.dates, matplotlib.font_manager
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