setop/python-escpos
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fix AttributeError when executing close

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When self.device is already None an AttributeError will occur.
This is relevant to #189.
This commit is contained in:
Patrick Kanzler
2017-01-30 16:12:37 +01:00
parent 1038844567
commit e92f00cdf3
1 changed files with 6 additions and 4 deletions
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2
src/escpos/printer.py
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@@ -211,6 +211,7 @@ class Network(Escpos):
def close(self): def close(self):
""" Close TCP connection """ """ Close TCP connection """
if self.device is not None:
self.device.shutdown(socket.SHUT_RDWR) self.device.shutdown(socket.SHUT_RDWR)
self.device.close() self.device.close()
@@ -263,6 +264,7 @@ class File(Escpos):
def close(self): def close(self):
""" Close system file """ """ Close system file """
if self.device is not None:
self.device.flush() self.device.flush()
self.device.close() self.device.close()