posix: ignore more blocking errors and EINTR in write just as in read
- catch all the errno's that BlockingIOError would cover
- catch EINTR
fixes #227
diff --git a/serial/serialposix.py b/serial/serialposix.py
index a465e3e..278ce47 100644
--- a/serial/serialposix.py
+++ b/serial/serialposix.py
@@ -561,12 +561,20 @@
tx_len -= n
except SerialException:
raise
- except OSError as v:
- if v.errno != errno.EAGAIN:
- raise SerialException('write failed: {}'.format(v))
- # still calculate and check timeout
- if timeout.expired():
- raise writeTimeoutError
+ except OSError as e:
+ # this is for Python 3.x where select.error is a subclass of
+ # OSError ignore BlockingIOErrors and EINTR. other errors are shown
+ # https://www.python.org/dev/peps/pep-0475.
+ if e.errno not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR):
+ raise SerialException('write failed: {}'.format(e))
+ except select.error as e:
+ # this is for Python 2.x
+ # ignore BlockingIOErrors and EINTR. all errors are shown
+ # see also http://www.python.org/dev/peps/pep-3151/#select
+ if e[0] not in (errno.EAGAIN, errno.EALREADY, errno.EWOULDBLOCK, errno.EINPROGRESS, errno.EINTR)):
+ raise SerialException('write failed: {}'.format(e))
+ if timeout.expired():
+ raise writeTimeoutError
return length - len(d)
def flush(self):