How can I get the last raw_input? My py asks questions(raw_input) and if user types wrong asks the same again and user needs to type all over again, so how can I get last input to make de user just edit it??(like a shell pressing key-up)
You are looking for the readline
module. Here's an example from effbot.org:
# File: readline-example-2.py
class Completer:
def __init__(self, words):
self.words = words
self.prefix = None
def complete(self, prefix, index):
if prefix != self.prefix:
# we have a new prefix!
# find all words that start with this prefix
self.matching_words = [
w for w in self.words if w.startswith(prefix)
]
self.prefix = prefix
try:
return self.matching_words[index]
except IndexError:
return None
import readline
# a set of more or less interesting words
words = "perl", "pyjamas", "python", "pythagoras"
completer = Completer(words)
readline.parse_and_bind("tab: complete")
readline.set_completer(completer.complete)
# try it out!
while 1:
print repr(raw_input(">>> "))