Hi,
I'm trying to do something that should be very simple. I want to
generate a list of the words that appear in a document according to
their frequencies. So, the list generated by the script should be
something like this:
the : 3
book: 2
was : 2
read: 1
by: 1
[...]
This would be obtained from
"Josep M. Fontana" wrote
The code I started writing to achieve this result can be seen below.
You will see that first I'm trying to create a dictionary that
contains the word as the key with the frequency as its value. Later
on
I will transform the dictionary into a text file with the desire
wrote
I have done some extensive reading on python.
i want to design a classifieds site for jobs.
Have you done any extensive programming yet?
Reading alone will be of limited benefit and jumping into
a faurly complex web project before you have the basics
mastered will be a painful experien
Alan Gauld wrote:
> The loop is a bit clunky. it would be clearer just to iterate over
> a_list:
>
> for item in a_list:
>words[item] = a_list.count(item)
This is a very inefficient approach because you repeat counting the number
of occurrences of a word that appears N times N times:
>>> w
Josep M. Fontana wrote:
def countWords(a_list):
words = {}
for i in range(len(a_list)):
item = a_list[i]
count = a_list.count(item)
words[item] = count
return sorted(words.items(), key=lambda item: item[1], reverse=True)
with open('output.txt', 'a') as token_f
OK, I need to create or find a function that will return a list of
DIRECTORIES (only) which are under 'the current directory'. Anyone got
some clue on this? Please advise.
--
end
Very Truly yours,
- Kirk Bailey,
Largo Florida
kniht
On 11/20/2010 11:03 AM Kirk Bailey said...
OK, I need to create or find a function that will return a list of
DIRECTORIES (only) which are under 'the current directory'. Anyone got
some clue on this? Please advise.
Use os.walk
Emile
Help on function walk in module os:
walk(top, topdown=T
Thanks Alan, Peter and Steve,
Instead of answering each one of you independently let me try to use
my response to Steve's message as the basis for an answer to all of
you.
It turns out that matters of efficiency appear to be VERY important in
this case. The example in my message was a very short
x=0
y=0
w=raw_input("Input: ")
w=list(w)
for x in range(len(w)):
a=w[x]
t=0
print a
if a==2 or a==4 or a==6 or a==8 or a==10:
t=a/2
print "hi"
When I run this program, it doesn't print "hi". Can you please tell me why?
___
Tutor
"Kirk Bailey" wrote
OK, I need to create or find a function that will return a list of
DIRECTORIES (only) which are under 'the current directory'. Anyone
got some clue on this? Please advise.
You can use os.walk() to get a list of directories and files and
then just throw away the files...
If the file is big use Peter's method, but 45 minutes still seems
very long so it may be theres a hidden bug in there somehwew.
However...
> When I look at the current processes running on my computer, I see the
> Python process taking 100% of the CPU. Since my computer has a
> multi-core pr
Good evening,
: It turns out that matters of efficiency appear to be VERY
: important in this case. The example in my message was a very
: short string but the file that I'm trying to process is pretty
: big (20MB of text).
Efficiency is best addressed first and foremost, not by hardware,
On 11/20/2010 11:06 AM george wu said...
x=0
y=0
w=raw_input("Input: ")
w=list(w)
for x in range(len(w)):
a=w[x]
t=0
print a
if a==2 or a==4 or a==6 or a==8 or a==10:
t=a/2
print "hi"
When I run this program, it doesn't print "hi". Can you please tell me why?
When you're
"Martin A. Brown" wrote
* Somebody will be certain to point out a language or languages
that provide some sort of facility to abstract the use of
multiple processors without the explicit use of threads.
ISTR Occam did that?
Occam being the purpose designed language for the transputer,
--> snip
>However, even with countWords2, which is supposed to overcome this
>problem, it feels as if I've entered an infinite loop.
>Josep M.
Just my twopenneth, I'm a noob and I'm not going to try such a big file on
my old machine, but:
1. Maybe create a *set* from the wordlist, loop through
"col speed" wrote
Just my twopenneth, I'm a noob and I'm not going to try such a big
file on
my old machine, but:
1. Maybe create a *set* from the wordlist, loop through that, so you
call
"count" on wordlist only once. OR
This would be an improvement but still involves traversing the en
Hi People,
I am afraid only Alan has said something to me. Is it that solution would never
come or u guys are waiting to gimme the best?
Please help.
Sent from my BlackBerry wireless device from MTN
-Original Message-
From: "Alan Gauld"
Sender: tutor-bounces+delegbede=dudupay@pytho
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