Python re “bogus escape error”

Question

I\'ve been messing around with the python re modules .search method. cur is the input from a Tkinter entry widget. Whenever I enter a \"\\\

Answer 1

If you are trying to search for "cur" in "tup[0]" you should do this through "try:... except:..." block to catch invalid pattern:

try :
    se = re.search(cur, tup[0], flags=re.IGNORECASE)
except re.error, e:
    # print to stdout or any status widget in your gui
    print "Your search pattern is not valid."
    # Some details for error:
    print e
    # Or some other code for default action.