use vi style in all line-edit environment

[Zhang Weiwu]

I have been using vi all the time, even in csh I set bindkey -v to use vi 
style command-line edit.

But when the context is switched to python, mysql, or scilab I have to warn 
myself not to type in vi style. Very often in mysql I mistyped something 
and try to type a "x" to correct it, or I press "A" and thought I would go 
to the end of the line.

Is it possible to make a global configuration to let all command-line 
processor accept vi style key?

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