2009/9/24 ALAN GAULD :
>> print message[::-1]
>
> Yes, the for loop doing one character at a time will be much
> slower than using a slice. The slice is more pythonic but less general.
> A reverse loop is something that is often needed in programming
> solutions so it's useful to know how to do it
> Does anyone have an advanced topic on slicing where the :: notation is
> explained?
>
You should find plenty by googling for "python slice step sequence"
Here are a few with links to further resources:
http://www.python.org/doc/2.3/whatsnew/section-slices.html
http://stackoverflow.com/questions
Hi all Pythons!
I'm new to Python and this List!
I'm reading Hetland's "Beginning Python" and I tried to test myself
an example the book provides in 59:
width = input('Please enter width: ')
price_width = 10
item_width = width - price_width
header_format = '%-*s%*s'
format = '%-*s%*.
On Thu, Sep 24, 2009 at 10:15 PM, george fragos wrote:
> print format % (item_width, 'Cantaloupes', price_width, 1.92)
> print format % (item_width, 'Dried Apricots (16 gr)' price_width, 8)
>
Notice the line before (works) and after (doesn't work - as the interpreter
pointed out), how do you sepa
>> File "test.py", line 18
>> print format % (item_width, 'Dried Apricots (16 gr)' price_width, 8)
>> ^
>> SyntaxError: invalid syntax
Oxymoron has pointed you in the right direction. After you fix that
error, however, you'll get
Hi Kurt,
Sorry for the late reply.
My problem is resolved. Instead of "subprocess.Popen", I used
"subprocess.call".
Thanks all for your replies.
AD
On Fri, Sep 18, 2009 at 8:05 PM, Kurt Bendl wrote:
> Hello,
>
> On Sep 18, 2009, at 5:16 AM, Ansuman Dash wrote:
>
> I have written it like th
2009/9/24 Oxymoron :
>> print format % (item_width, 'Cantaloupes', price_width, 1.92)
>> print format % (item_width, 'Dried Apricots (16 gr)' price_width, 8)
>
>
> Notice the line before (works) and after (doesn't work - as the interpreter
> pointed out), how do you separate items in a tuple? :-)
>
Hello,
I have this function in my class:
http://paste.lisp.org/display/87659
Is there a better method to write the last bit of the code.
Thanks
Norman
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Hello, python tutors, its Corey.
Anyway, I'm getting a syntax error for an unknown reason. Here is my code...
name = raw_input("What is your name?")
print "Hello, ", name
wellness = raw_input("How are you?")
if wellness != "Good":
if wellness != "Well":
if wellness != "Fine":
On Thu, Sep 24, 2009 at 2:12 PM, Norman Khine wrote:
> Hello,
> I have this function in my class:
>
> http://paste.lisp.org/display/87659
>
> Is there a better method to write the last bit of the code.
Better in what way? What are these things? What is resource? Some
context would be helpful, I s
Cory,
It would be helpful for us to see the code and the exact error
message(s).
Would you copy your code and the errors directly to either your post or
your code to one of the posting pages such as www.pastebin.org so we
can see your code exactly how you have written it.
Robert
On Thu, 2009
On Thu, Sep 24, 2009 at 2:15 PM, Corey Richardson wrote:
> Hello, python tutors, its Corey.
> Anyway, I'm getting a syntax error for an unknown reason. Here is my
> code...
> name = raw_input("What is your name?")
> print "Hello, ", name
> wellness = raw_input("How are you?")
> if wellness !=
> Hello, python tutors, its Corey.
Hi, Corey.
> candyNumber = raw_input("How many candies do you want? :"
You dropped a closing parenthesis in the line above. Having the syntax
error occur one line up from where it is indicated is not uncommon.
Another thing as long as we are here, in
Robert, that is my code. The error? "Theres an error in your program :
invalid syntax"
Closing the parenthesis helped that one, but my else statement is not
working...heres the code chunk...
if wellness != "Good":
elif wellness != "Well":
elif wellness != "Fine":
print "Oh,
if wellness != "Good":
elif wellness != "Well":
elif wellness != "Fine":
print "Oh, I'm sorry you are not feeling well. I guessed
correct, right?"
I think the problem is the elif's and the indents...
elif is 'else if', and should be at the same indentation level as the
prev
tutor-bounces+christopher.henk=allisontransmission@python.org wrote on
09/24/2009 05:43:24 PM:
> Robert, that is my code. The error? "Theres an error in your program :
> invalid syntax"
> Closing the parenthesis helped that one, but my else statement is not
> working...heres the code chunk.
Thanks a lot Vishwajeet & everyone else who replied. This is great I am glad
now its working & I knew I was missing the module but somehow didn't know
from where I would get that. But glad everything is working fine now. This
is great community :)
--
Regards,
Vineet Kothari
http://www.vineetkotha
On Thu, 2009-09-24 at 08:07 -0400, Serdar Tumgoren wrote:
> You should find plenty by googling for "python slice step sequence"
Now that I know what to look for I went to the online python docs [1]
and tried to find where it has been documented.
Unfortunately all the slicing examples I found do
"Corey Richardson" wrote
Closing the parenthesis helped that one, but my else statement is not
working...heres the code chunk...
if wellness != "Good":
elif wellness != "Well":
elif wellness != "Fine":
print "Oh, I'm sorry you are not feeling well. I guessed
correct, rig
Can you also help me out with the way to delete the mapped drive I know in
command line it is
> net use [DRIVE:] /delete
>
but I am unable to figure out how I can do it from python
Since I am trying to make sure that the drive name I am giving in my code:
> import win32net
> win32net.NetUseAdd(
On Thu, Sep 24, 2009 at 7:02 PM, Sander Sweers wrote:
> Now that I know what to look for I went to the online python docs [1]
> and tried to find where it has been documented.
>
> Unfortunately all the slicing examples I found do not even mention that
> there is optional step value.
See footnote
A friend is looking for some help with how to use Python to access a
WinTV (Go Plus) capture card, and how to display an image from it. Is
there some facility that might help him, or does anyone have experience
with such use that might suggest sources? Win XP OS. Any general methods
for dealing
On Thu, Sep 24, 2009 at 10:25 PM, Kent Johnson wrote:
> On Thu, Sep 24, 2009 at 2:12 PM, Norman Khine wrote:
>> Hello,
>> I have this function in my class:
>>
>> http://paste.lisp.org/display/87659
>>
>> Is there a better method to write the last bit of the code.
>
> Better in what way? What are
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