Created attachment 6478 [details]
Patch to test for KeyboardInterrupt

GDB does not pass the KeyboardInterrupt exception to Python when the user terminates paged terminal output generated by Python.  This causes Python scripts to terminate when the user interrupts output.  

(gdb) set height 5
(gdb) python
>try:
>    for i in range(400):
>        print i
>except KeyboardInterrupt:
>    print "caught interrupt"
>end
0
1
2
3
---Type <return> to continue, or q <return> to quit---q
Quit


When the output is generated by a GDB command, the exception is caught and passed to Python.

(gdb) python
>try:
>    gdb.execute("help all")
>except KeyboardInterrupt:
>    print "caught interrupt"
>end

Command class: aliases

ni -- Step one instruction
---Type <return> to continue, or q <return> to quit---q
caught interrupt