Terry J. Reedy added the comment:
Yes, the first part of my post was about how it worked in regular interactive
window: prints text, then prompt, then blinking underline cursor.
Python 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit (AMD64)] on
win32 -- Win7 Professional, with all MS patches.
Are you running the apr 10 release or something compiled later, with the
readline stub replaced?
Problem manifests in raw_input(): get same behavior of print prompt then crash
when should display input cursor.
>>> raw_input('xyz') # IDLE still
xyz
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
raw_input('xyz')
UnsupportedOperation: readline
Problem really is sys.stdin.readline(), which is the dummy stub I quoted in
first message.
>>> sys.stdin.readline()
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
sys.stdin.readline()
UnsupportedOperation: readline
----------
title: Help() fails at raw_input readline (IDLE 2.7.3, Win7, pythonw) ->
sys.stdin.readline 'unsupported' (IDLE 2.7.3, Win7, pythonw)
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<http://bugs.python.org/issue16103>
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