diff options
Diffstat (limited to 'Lib/subprocess.py')
| -rw-r--r-- | Lib/subprocess.py | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Lib/subprocess.py b/Lib/subprocess.py index c827113a93..5db6f0cc24 100644 --- a/Lib/subprocess.py +++ b/Lib/subprocess.py @@ -743,12 +743,21 @@ class Popen(object): self._closed_child_pipe_fds = False + if self.text_mode: + if bufsize == 1: + line_buffering = True + # Use the default buffer size for the underlying binary streams + # since they don't support line buffering. + bufsize = -1 + else: + line_buffering = False + try: if p2cwrite != -1: self.stdin = io.open(p2cwrite, 'wb', bufsize) if self.text_mode: self.stdin = io.TextIOWrapper(self.stdin, write_through=True, - line_buffering=(bufsize == 1), + line_buffering=line_buffering, encoding=encoding, errors=errors) if c2pread != -1: self.stdout = io.open(c2pread, 'rb', bufsize) |