[Tutor] Fwd: converting upper case to lowercase and vice-versa

[Bod Soutar]

Did'nt realise this went offlist, my fault

-- Bodsda


---------- Forwarded message ----------
From: Shall, Sydney <sydney.shall at kcl.ac.uk>
Date: 15 March 2013 14:43
Subject: Re: [Tutor] converting upper case to lowercase and vice-versa
To: Bod Soutar <bodsda at googlemail.com>


On 15/03/2013 14:30, Bod Soutar wrote:

On 15 March 2013 13:52, Shall, Sydney <sydney.shall at kcl.ac.uk> wrote:

I am just learning Python and my book does not solve my problem.
I have not yet been successful in searching the Python 2.7.3 tutorial
I am doing an encryption exercise.

Python 2.7.3
MAC OS X 10.6.8

What is the correct syntax to covert English characters from uppercase to
lowercase and from lowercase to uppercase?

With many thanks,

Sydney

--

mystring = "THIS is A string"
newstring = ""
for item in mystring:
    if item.isupper():
        newstring += item.upper()
    else:
        newstring += item.lower()

print newstring

Thanks Bod,
This is most helpful.
In fact, your syntax allows me to now simplify my code.
Sydney

--
Professor Sydney Shall,
Department of Haematological Medicine,
King's College London,
Medical School,
123 Coldharbour Lane,
LONDON SE5 9NU,
Tel & Fax: +44 (0)207 848 5902,
E-Mail: sydney.shall,
[correspondents outside the College should add; @kcl.ac.uk]
www.kcl.ac.uk