On Wed, Dec 16, 2015 at 02:37:18PM -0500, Ken Hammer wrote:
> Intent is to print "Jack, Kack, ...." with "O" and "Q" delivering a
> longer suffix. Instead, I get the printout shown with duplicates and
> a second deviation with "O" and "Q" as shown. Why?
Are you absolutely sure about that? When I run your code, I don't get
any duplicates:
prefixes = 'JKLMNOPQ' ###FAILS WITH REPEATS
suffix = 'ack'
suffixb= 'uack'
for letter in prefixes:
if letter == "O":
print letter + suffixb
if letter == "Q":
print letter + suffixb
else:
print letter + suffix
Output is:
Jack
Kack
Lack
Mack
Nack
Ouack
Oack
Pack
Quack
If you are getting duplicate lines, you must be running code that is
different from the code you posted to us. We cannot help you with code
we can't see.
As far as the code shown, look carefully at the code inside the
for-loop:
if letter == "O":
print letter + suffixb
if letter == "Q":
print letter + suffixb
else:
print letter + suffix
The first test checks to see if the letter is "O", and if so, it prints
"Ouack". Then, *regardless* of whether it just printed "Ouack" or not,
it then does a second test, for "Q". Since Q is not O, it then prints
"Oack".
No other letter gets treated that way.
Instead, you should change the second "if" to an "elif" (else if). Or
better still:
if letter == "O" or letter == "Q":
print letter + suffixb
else:
print letter + suffix
which can be simplified even more to:
if letter in ("O", "Q"):
print letter + suffixb
else:
print letter + suffix
--
Steve
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