[Bug 7694] Pushing python to the background causes shell to become unusable

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7694

--- Comment #3 from chen_chun_guang at 163.com 2014-12-15 11:17:29 UTC ---
I merged Busybox upstream patch and found it has not fixed ^Z issue completely
.
It's OK When just pushing one python instance into the background, 
But it still has display problem when launched send one,  the line feed does
not work and there is no character display even you had input some python
command.

root at edison:~# jobs
[1]+  Stopped                    python
root at edison:~# python
Python 2.7.3 (default, Dec  3 2014, 17:17:19) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> Type help() for interactive help, or help(object) for help about object.
>>> >>> >>> >>>   File "<stdin>", line 1
    echo help
            ^
SyntaxError: invalid syntax
>>>

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