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-rw-r--r--serial/serialutil.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/serial/serialutil.py b/serial/serialutil.py
index 1ccfabb..5fb5588 100644
--- a/serial/serialutil.py
+++ b/serial/serialutil.py
@@ -564,7 +564,7 @@ class SerialBase(io.RawIOBase):
self.apply_settings(d)
def isOpen(self):
- return self._is_open
+ return self.is_open
# - - - - - - - - - - - - - - - - - - - - - - - -
# additional functionality