win32: Leaving Dos Box open

[Duncan Booth]

Thomas Guettler <zopestoller at thomas-guettler.de> wrote in 
news:3D2AE438.9030205 at thomas-guettler.de:

> Hi!
> 
> How can the dos box be left open when I run foo.py from
> the windows explorer and there is a syntax error?
> 
> thomas
> 
> 

Try something like this:
---- error.py ---
import sys
def excepthook(t,v,tr, old=sys.excepthook):
    old(t,v,tr)
    raw_input("Press return to exit")
sys.excepthook = excepthook

x = 3/0
print "Done"
---- end of error.py ---

Copy the top 5 lines somewhere near the top of your own script.

Alternatively wrap a try:except: handler around the main loop of your 
script. I sometimes use code like this:

if __name__ == '__main__':
    try:
        # main program code goes here...
        main()
    except:
        # In case of emergency, lets debug!
        import pdb, sys, traceback
        sys.last_type, sys.last_value, sys.last_traceback = sys.exc_info()
        traceback.print_last()
        pdb.pm()

Which not only keeps the window open, but throws you into a debugger for 
good measure.

-- 
Duncan Booth                                             duncan at rcp.co.uk
int month(char *p){return(124864/((p[0]+p[1]-p[2]&0x1f)+1)%12)["\5\x8\3"
"\6\7\xb\1\x9\xa\2\0\4"];} // Who said my code was obscure?