Calling detach() on the standard streams is a bad idea - the interpreter uses the originals internally, and calling detach() breaks them. -- Sent from my phone, thus the relative brevity :) On Jun 10, 2012 6:03 AM, "Serhiy Storchaka" <storchaka@gmail.com> wrote:
On 09.06.12 12:55, Nick Coghlan wrote:
So, after much digging, it appears the *right* way to replace a standard stream in Python 3 after application start is to do the following:
sys.stdin = open(sys.stdin.fileno(), 'r',<new settings>) sys.stdout = open(sys.stdout.fileno(), 'w',<new settings>) sys.stderr = open(sys.stderr.fileno(), 'w',<new settings>)
sys.stdin = io.TextIOWrapper(sys.stdin.**detach(), <new settings>) sys.stdout = io.TextIOWrapper(sys.stdout.**detach(), <new settings>) ...
None of these methods are not guaranteed to work if the input or output have occurred before.
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