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Hello,
I am writing a poll application, which has two XML files:
1) survey.xml
Is an augumented assignment such as 'x = x + 1' the same as x
+= 1?
Yes
No
Don't know
The statement 'x *= y + 1' is equivalent to:
'x = (x * y) + 1'
'x = x * (y + 1)
'x = (y + 1) * x'
All of
Morgan Thorpe wrote:
Hey Again.
Okay i don't think my sad explantion did help at all.
Would you be able to explain step by step what i need to do to run the simplest
of simple program's everyone else has asked about where it is and what not.
According to them i have everything where it needs t
Norman Khine wrote:
Hello,
I am writing a poll application, which has two XML files:
Is this entire question consistent? I ask because when you get to
asking your question below, it sounds like you're trying to tie together
two outputs:
> This returns:
> ['1'] ['1', '2', '2', '2'] [1, 1
Hi,
Appologies, there was a typo, in that the first line is:
['1'] ['a1', 'a2', 'a2', 'a2'] [1, 1, 2, 4]
The way the first line relates to the survey is such that, it looks at
the response.xml file and returns what the individual user has
submitted.
So that:
['1'] ['a1', 'a2', 'a2', 'a2'] [1, 1
Norman Khine wrote:
Hi,
Appologies, there was a typo, in that the first line is:
['1'] ['a1', 'a2', 'a2', 'a2'] [1, 1, 2, 4]
Yes -- that helps.
So, working from your xml samples, by doing something like:
responses = [ [a,b,c] for a,b,c in responseAnalysisGenerator ]
you can end up with resp
All,
I'm looking for some thoughts on how two separate threads can
communicate in Python. From what I've read in a few Python books,
sharing data between threads can be done by writing and reading a
global variable in the parent of both threads. Is this the "best" way?
Is it the *only* way?
Also,
Hi tutor list,
Just trying to add some clarity to the built-in function strings using
join. The Python help
screen says it returns a string which is a concatenation of strings in
sequence. I am concatenating
the string I am working on that maybe an issue of its own.
Here's my example:
stri
James wrote:
All,
I'm looking for some thoughts on how two separate threads can
communicate in Python. From what I've read in a few Python books,
sharing data between threads can be done by writing and reading a
global variable in the parent of both threads. Is this the "best" way?
Is it the *on
On 31/07/2008, Steve Poe <[EMAIL PROTECTED]> wrote:
> Hi tutor list,
>
> Just trying to add some clarity to the built-in function strings using
> join. The Python help
> screen says it returns a string which is a concatenation of strings in
> sequence. I am concatenating
> the string I am workin
On 31/07/2008, Steve Poe <[EMAIL PROTECTED]> wrote:
> Good point. I guess I am surprised a little that Python does not error
> on that you cannot assign a variable to a module name. I know I need
> to learn proper coding techniques.
Well, that wouldn't really work because you don't know what o
> On 31/07/2008, Steve Poe <[EMAIL PROTECTED]> wrote:
>> Okay, I can see the order of the join is the same as mine, but
>> the join still seems to be out of sequence. I am thinking it should be
>> 'abcABC' or 'ABCabc' not at the beginning, middle, and end of the
>> original string. At least, I
I am populating a dictionary from an input file, and would like to create an
error code if a string is sent to a variable that expects a float or int.
INPUT = {}
for line in open(infile):
input_line = line.split(' = ')
INPUT[input_line[0].strip()] = input_line[1].strip()
if INPUT.has_key(
Bryan,
How about checking your input to see if they are digits or not?
>>> input_data = '123ABC'
>>> print input_data.isdigit()
False
>>> input_data = '1234567889'
>>> print input_data.isdigit()
True
>>> input_data = '123ABC'
>>> print input_data.isdigit()
False
or something like:
while INPUT.h
def sumEvenFibonacci( limit ):
a, b = 1, 1 # don't waste with a = 0
sum = 0
while b < limit:
if b%2 == 0: sum += b
a, b = b, a + b
return sum
print sumEvenFibonacci( 200 )
- Original Message -
From: Chris Fuller <[EMAI
Does this look useful?
In [3]: people = [ 'Tom', 'Dick', 'Harry' ]
In [4]: ', '.join(people)
Out[4]: 'Tom, Dick, Harry'
Your confusion is in thinking about the string 'ABC' as a single
entity. For the purposes of join(), it is a sequence of three letters.
The argument to join() is a sequence of
Say I have a sequence seq and a string s, and I call s.join(seq).
Here's what it does:
s.join(seq) == seq[0] + s + seq[1] + s + seq[2] + s + ... + seq[-2] +
s + seq[-1]
So if you call 'abc'.join('ABC'), you get:
'ABC'[0] + 'abc' + 'ABC'[1] + 'abc' + 'ABC'[2]
which is:
'A' + 'abc' + 'B'
On 31/07/2008, Steve Poe <[EMAIL PROTECTED]> wrote:
> Your explanation is very help. It does make be wonder the usefulness
> of join with strings. Do you have a practical example/situation?
Kent's example is common: you might have a list of strings that you
want to display to the user, so you ca
On 31/07/2008, Bryan Fodness <[EMAIL PROTECTED]> wrote:
> I am populating a dictionary from an input file, and would like to create an
> error code if a string is sent to a variable that expects a float or int.
>
> INPUT = {}
> for line in open(infile):
> input_line = line.split(' = ')
> IN
"Kepala Pening" <[EMAIL PROTECTED]> wrote
def sumEvenFibonacci( limit ):
a, b = 1, 1 # don't waste with a = 0
sum = 0
while b < limit:
if b%2 == 0: sum += b
a, b = b, a + b
return sum
print sumEvenFibonacci( 200 )
Does it work for limit = 2?
Alan G.
__
"Steve Poe" <[EMAIL PROTECTED]> wrote
In [3]: people = [ 'Tom', 'Dick', 'Harry' ]
Okay, now let's join people to people and what do we get?
An error, join only works on a single string.
It joins the elements of a sequence of strings into a single
string using the 'owning' string. In some w
"Bryan Fodness" <[EMAIL PROTECTED]> wrote
I have many variables of different types, and I want to do a check
in
case something like ReferencePositionX = abc occurs.
In Python its usual to tackle that using try/except.
If you get a TypeError then try type conversion.
The saying goes somethinn
"Steve Poe" <[EMAIL PROTECTED]> wrote
Your explanation is very help. It does make be wonder the usefulness
of join with strings. Do you have a practical example/situation?
Its not really intended for strings but it needs to work that way to
be consistent because strings are just another type
Hi tutor list,
In dictionaries, I know that the keys are immutable, and the values
can change What about the place/order of the key/order? I thought
that they were sequential and they do not change.
>>> D={"AAA":1234,"BBB":3456,"CCC":7890}
>>> print D
{'AAA': 1234, 'BBB': 3456, 'CCC': 7890}
>
Since the question is less than 200, I used
b < limit.
However, to have limit = 2, perhaps I should do
while b <= limit.
Thanks Alan for pointing it out.
- Original Message -
From: "Alan Gauld" <[EMAIL PROTECTED]>
To: tutor@python.org
Date: Thu, 31 Jul 2008 06:39:32 +0
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