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asyncio: Improve default writelines().

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This commit is contained in:
Guido van Rossum 2013-12-02 18:36:30 -08:00
parent afbf827875
commit f10345e102
2 changed files with 20 additions and 6 deletions
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16
Lib/asyncio/transports.py
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@ -1,5 +1,9 @@
"""Abstract Transport class."""
import sys
PY34 = sys.version_info >= (3, 4)
__all__ = ['ReadTransport', 'WriteTransport', 'Transport']
@ -85,11 +89,15 @@ class WriteTransport(BaseTransport):
def writelines(self, list_of_data):
"""Write a list (or any iterable) of data bytes to the transport.
The default implementation just calls write() for each item in
the list/iterable.
The default implementation concatenates the arguments and
calls write() on the result.
"""
for data in list_of_data:
self.write(data)
if not PY34:
# In Python 3.3, bytes.join() doesn't handle memoryview.
list_of_data = (
bytes(data) if isinstance(data, memoryview) else data
for data in list_of_data)
self.write(b''.join(list_of_data))
def write_eof(self):
"""Close the write end after flushing buffered data.