[issue11633] regression: print buffers output when end=''

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc <amauryfa at gmail.com> added the comment:

We are talking about different things here:

- When python is run from a console, sys.stdout is line buffered. sys.stdout.write() flushes if there is a carriage return. No need to change anything here.

- print() could call file.flush() if file.isatty(), *after* the multiple calls to file.write().

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nosy: +amaury.forgeotdarc

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<http://bugs.python.org/issue11633>
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