[New-bugs-announce] [issue25660] tabs don't work correctly in python repl

[Yury Selivanov]

New submission from Yury Selivanov:

When Python is compiled with readline, repeatedly pressing <TAB> key in repl breaks the repl prompt.

Below is what I see when I hit <TAB> 4 times.

    yury at ysmac ~/dev/py/cpython $ ./python.exe
    Python 3.5.0+ (3.5:4ae62ddf7bc7+, Nov 18 2015, 14:52:57)
    [GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.1.76)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    >>>

    >>>

    >>>

    >>>


Reproducible when Python is built from source on latest OS X.  Works OK when installed from MacPorts.

Further, if I add

   PyOS_ReadlineFunctionPointer = PyOS_StdioReadline;

in PyOS_Readline in myreadline.c, everything works as expected, so I think this is a readline bug.

----------
components: Interpreter Core
messages: 254855
nosy: r.david.murray, serhiy.storchaka, yselivanov
priority: high
severity: normal
status: open
title: tabs don't work correctly in python repl
versions: Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25660>
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