bpython-curtsies is very slow at printing lots of output quickly.

#!python

import time
def foo():
    t0 = time.time()
    for i in range(1000):
        print i
    return time.time() - t0

foo()

foo() runs very slowly in bpython-curtsies:
python: 0.0041s
bpython: 0.3166s
bpython-curtsies:18.7237s

bpython-curtsies currently does no output buffering, forcing a greenlet context switch for every write operation. There should be buffering so this doesn't take so long.

• Bitbucket: https://bitbucket.org/bobf/bpython/issue/262
• Originally Reported By:
• Originally Created At: 2014-03-01T02:08:23.072