if ‘A’ <= c and c <= 'Z': return chr((ord(c) - ord('A') + 13) % 26 + ord('A')) if 'a' <= c and c <= 'Z': return chr((ord(c) - ord('a') + 13) % 26 + ord('a')) return c
def render_str(template, **params):
t = jinja_env.get_template(template)
return t.render(params)
class BaseHandler(webapp2.RequestHandler):
def render(self, template, **kw):
self.response.out.write(render_str(template, **kw))
def write(self, *a, **kw):
self.response.out.write(*a, **kw)
class Rot13(BaseHandler):
def get(self):
self.render('rot13-form.html')
def post(self)
rot13 = ''
text = self.request.get('text')
if text:
rot13 = text.encode('rot13')
self.render('rot13-form.html', text = rot13)
USER_RE = re.compile(r"^[a-zA-Z0-9_-]{3,20}$")
def valid_username(username):
return username and USER_RE.match(username)
PASS_RE = re.compile(r"^.{3,20}$")
def valid_password(password):
