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please, can someone help me with the code bellow? When I run it the logs said:
return method(*args, **kwargs) File "C:\Users\CG\Documents\udacity\rot13serendipo\main.py", line 51, in post text = rot13(text) File "C:\Users\CG\Documents\udacity\rot13serendipo\main.py", line 43, in rot13 return st.translate(tab) TypeError: character mapping must return integer, None or unicode INFO 2012-04-28 20:02:26,862 dev_appserver.py:2891] "POST / HTTP/1.1" 500 - I know the error must be in rot13(). But when I run this procedure in the IDE it works normally.
Here my code:
import webapp2 form= """ <html> <head> <title>Unit 2 Rot 13</title> </head> <body> <h2>Enter some text to ROT13:</h2> <form method="post"> <textarea name="text" style="height: 100px; width: 400px;"></textarea> <br> <input type="submit"> </form> </body> </html> """ def rot13(st): import string tab1 = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' tab2 = 'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM' tab = string.maketrans(tab1, tab2) return st.translate(tab) class MainHandler(webapp2.RequestHandler): def get(self): self.response.out.write(form) def post(self): text = self.request.get("text") text = rot13(text) self.response.out.write(text) app = webapp2.WSGIApplication([('/', MainHandler)], debug=True) Thanks in advance for any help!
478
It's probably because the text is being entered as unicode:
>>> def rot13(st): ... import string ... tab1 = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' ... tab2 = 'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM' ... tab = string.maketrans(tab1, tab2) ... return st.translate(tab) ... >>> rot13('test') 'grfg' >>> rot13(u'test') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 6, in rot13 TypeError: character mapping must return integer, None or unicode >>> This question covers what you need:
If you are sure that unicode strings aren't important I guess you could just:
return str(st).translate(tab) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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