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use open() as context manager (#9579)
* use open() as context manager * add changelog frag
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13 changed files with 72 additions and 102 deletions
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@ -146,9 +146,8 @@ class CronVar(object):
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if self.cron_file:
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# read the cronfile
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try:
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f = open(self.cron_file, 'r')
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self.lines = f.read().splitlines()
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f.close()
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with open(self.cron_file, 'r') as f:
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self.lines = f.read().splitlines()
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except IOError:
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# cron file does not exist
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return
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