G'day everyone.
I'm experimenting with a custom console application, and trying to add
command history functionality to it. It seems to basically work ok
except for the fact that when I press the Up arrow key to run previous
commands, the right commands are not displayed. It displays a wierd
"^[[A" for each Up arrow key that I press. Inspite of this, when I hit
enter, it DOES seem to run the right command.
Heres a bit of code (stripped down to the bare essentials to demonstrate
just this problem) that shows this behaviour:
------X Code starts here
import readline
import select
import sys
import os
historyPath = ".pyhistory.test"
if os.path.exists(historyPath):
readline.read_history_file(historyPath)
inputs = [sys.stdin] #More on this later.
while 1:
in_ready, out_ready, ex_ready = select.select(inputs, [], [], 10)
#More on this later.
x= raw_input()
print "You entered: ", x
----X End of code
Heres what an example run of the program looks like, with my comments:
[EMAIL PROTECTED]:~/tools$ python test_history1.py
ls <--------------------------------------Me: I entered "ls" here. So,
this is the 1st command.
ls
You entered: ls
1 <---------------------------------------Me: 2nd command "1"
1
You entered: 1
2 <---------------------------------------Me: 3rd command "2"
2
You entered: 2
^[[A^[[A <--------------------------Me: This is the strange characters.
I pressed the Up key twice here.
1
You entered: 1 <----------------Me: So it looks like it received the
right command from history :"1".
So, my question is, why does it not display the right command from
history instead of those "^[[A" characters?
It works fine if I comment out the line "in_ready, out_ready, ex_ready =
select.select(inputs, [], [], 10)". But there is a reason why I need
this to be there..I'm expecting input from more sources than just the
keyboard.
Thanks,
Hans
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
