> I'm running an application that has a polling loop to check a serial
port
> for certain signals, and on my laptop I can get about 6700 samples
per
> second, which (of course) consumes 100% CPU; which may impact
battery life.
Consuming 100% CPU won't make much difference, the CPU is running all
I need to print all the ASCII characters within a string, how would I
delimit for example to print the first 100 only? Many thanks
JC
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
John Carmona wrote:
> I need to print all the ASCII characters within a string, how would I
> delimit for example to print the first 100 only? Many thanks
A string is a sequence and supports sequence operations including slices. So
s[:100]
gives the first 100 chars of a string.
You might be i
On 5/23/05, Tony Meyer <[EMAIL PROTECTED]> wrote:
> I have the local machine's administration privilege.[...]> When I run the command as you point out, I got the following> messages>> (5, 'InitiateSystemShutdown', 'Access is denied.')
The process itself needs to have the privilege. This message ha
Hey everyone
I've been searching (with no luck by the way) for a date picker combo or
something like it
What I need to do is validate a date field (better if it's already done) and
I want to know if anyone knows about a code to do that (a made code, don't
mean you to do my work). I was hoping
> Subject:
> [Tutor] Filtering Spreadsheet Data
> From:
> Luke Jordan <[EMAIL PROTECTED]>
> Date:
> Mon, 23 May 2005 15:30:33 -0500
> To:
> tutor@python.org
>
> To:
> tutor@python.org
>
>
> Hi All,
>
> I have several frighteningly cumbersome reports to review at my new
> job. I would like to wr
On May 24, 2005, at 14:22, Mike Hansen wrote:
> Excel has some nice database-like queries itself. Take a look at
> Advanced Filter
> in Help. You can essentially query a worksheet and even send the
> results to a
> different worksheet. I'd imagine that once you got the query
> working, you
I can't get:
import wave as w
def manipulate():
manipulate = raw_input("Type 'help' for help\nManipulate>> ")
if manipulate == "play":
w.tell()
elif manipulate == "back()":
main_menu()
def open():
while True:
file_name = raw_input("Open: ")
Hi all,
I have to working with the files lines in this directory:
:::
dir_locales = "/usr/share/i18n/locales/"
for line in fileinput.input(glob.glob(os.path.join\
(dir_locales, "*_[A-Z][A-Z]"))):
...
:::
The problem is that the directory otuput is:
aa_DJ
aa_ER
aa_ET
af_ZA
...
and
Jonas Melian wrote:
> Hi all,
>
> I have to working with the files lines in this directory:
>
> :::
> dir_locales = "/usr/share/i18n/locales/"
>
> for line in fileinput.input(glob.glob(os.path.join\
> (dir_locales, "*_[A-Z][A-Z]"))):
> ...
>
> :::
>
> The problem is that the direct
Kent Johnson wrote:
>>and i would sort this files by the 2 last letters, so:
>
> The sort() method of a mutable sequence is very powerful. Docs for it are
> here:
> http://docs.python.org/lib/typesseq-mutable.html
>
> The key= parameter of sort() allows you to provide a function which, given a
Jonas Melian wrote:
> Kent Johnson wrote:
>>files = glob.glob(os.path.join(dir_locales, "*_[A-Z][A-Z]"))
>>files.sort(key=lastTwoChars) # Note: NOT key=lastTwoChars()
>
> I get:
> ::
> files.sort(key=lastTwoChars)
> TypeError: sort() takes no keyword arguments
> ::
>
> Could it be by the Python
ok, thanks. that makes sense; however I do not know how to pass a variable from my parent frame to the dialog. I have tried this before unsuccessfully. could you provide a quick example of how to pass a variable to a dialog from a frame. I am not sure how this works. thanks.
JeffKent Johnson <[E
you can sort listsource based on listkey
For example:
you have listsource = ['c','b','a']
and listkey = [2,3,1] # this will be used to sort listsource.
def sortbasedlist(sources,keys):
#combine (key,sources)
Kombin = [(keys[i],sources[i]) for i in range(len(sources))]
Kombin.sort()
return
As the subject says, I was looking for an analog to chomp, and found
strip() and friends (rstrip() and lstrip()), but they are deprecated.
I'm happy to forgo their use in preparation for 3.0 (I figure we're
going to live the rest of our lives in the future, we might as well be
ready) but I need an
I am writing a small application that takes a user through a set of
steps - like a wizard. What I need is an idea how I can start with a
window, have the use click "Next" and get another window. My
understanding is that it is undesirable to have more than one mainloop
per program. Thanks.
--
y
Thanks Kent for the reply, I am actually having trouble to find the solution
of the following exercise:
## Write a for loop that prints the ASCII code of each character in a string
name S.##
I am ok with the for loop, put I don't know how get to print the ASCII code
of each character with a st
On Tue, May 24, 2005 at 01:16:21PM -0400, Michael P. Reilly wrote:
> On 5/24/05, William O'Higgins <[EMAIL PROTECTED]> wrote:
>
> As the subject says, I was looking for an analog to chomp, and found
> strip() and friends (rstrip() and lstrip()), but they are deprecated.
> I'm happy to
John Carmona wrote:
> Thanks Kent for the reply, I am actually having trouble to find the
> solution of the following exercise:
>
> ## Write a for loop that prints the ASCII code of each character in a
> string name S.##
>
> I am ok with the for loop, put I don't know how get to print the ASCII
I have a question: what is the "opposite" of hex()? (i.e., like ord
and chr). If I have
'0x73', how can I get back to 115 or s?
Thanks!
~Denise
> You need the ord() function and maybe hex() also:
> >>> ord('s')
> 115
> >>> hex(ord('s'))
> '0x73'
>
> Kent
>
>
D. Hartley wrote:
> I have a question: what is the "opposite" of hex()? (i.e., like ord
> and chr). If I have
>
> '0x73', how can I get back to 115 or s?
I don't know a really clean way to do this because '0x73' is not a legal input
value for int().
The simplest way is to use eval():
>>> eva
On Tue, 24 May 2005, Kent Johnson wrote:
> D. Hartley wrote:
> > I have a question: what is the "opposite" of hex()? (i.e., like ord
> > and chr). If I have
> >
> > '0x73', how can I get back to 115 or s?
>
> I don't know a really clean way to do this because '0x73' is not a legal
> input value
>I can't get:
>
>import wave as w
>
>... to play a .wav music file. I tried w.play() but got an error that
>module has no attribute 'play'.
>What do I use to get it to play?
Strangely... I do not believe the wave module is meant to actually
_play_ a wav file. It looks to me like it is only inte
Lee Harr wrote:
>>I can't get:
>>
>>import wave as w
>>
>
>
>
>>... to play a .wav music file. I tried w.play() but got an error that
>>module has no attribute 'play'.
>>What do I use to get it to play?
>
>
>
> Strangely... I do not believe the wave module is meant to actually
> _play_ a wav
On May 24, 2005, at 02:49, Joseph Quigley wrote:
> ... to play a .wav music file. I tried w.play() but got an error that
> module has no attribute 'play'.
> What do I use to get it to play?
> Thanks,
The wave module is meant to read, write and manipulate
(transform, filter, whatever) WAV
Hello all!
I was just thinking: if there are people on here who are still doing
the python riddles (or are interested in talking about them), I could
start an off-tutor thread so that we could chat about them without
clogging up the tutor mailing list for others?
If you are interested, drop me an
>What I need to do is validate a date field (better if it's already done)
>and
>I want to know if anyone knows about a code to do that (a made code, don't
>mean you to do my work). I was hoping to find a calendar combo box as in
>Visual Basic DropDown Calendar
For which GUI system?
py-qt has Da
Completeley forgot, :D
I'm working over Windows, Python 2.3., GUI Tkinter
Thanks in advanced
Alberto
http://graphics.hotmail.com/emvamp.gif";
width=12> Gaucho
>From: "Lee Harr" <[EMAIL PROTECTED]>
>To: tutor@python.org
>Subject: Re: [Tutor] Python Date picker
>Date: Wed, 25 May 2005 01:5
And just in case anyone *isnt* working on the riddles:
anyone have a pointer to a *SIMPLE* intro to xml as used in python? I
looked in the library and there are about 11 xml-related modules.
Perhaps something 'remote'. ;)
___
Tutor maillist
(meh, forgot to click "reply-all" again)
Begin forwarded message:
> From: Max Noel <[EMAIL PROTECTED]>
> Date: May 24, 2005 23:01:39 BDT
> To: "D. Hartley" <[EMAIL PROTECTED]>
> Subject: Re: [Tutor] xml
>
>
>
> On May 24, 2005, at 22:59, D. Hartley wrote:
>
>
>> anyone have a pointer to a *SIMPLE
Quoting William O'Higgins <[EMAIL PROTECTED]>:
> I am writing a small application that takes a user through a set of
> steps - like a wizard. What I need is an idea how I can start with a
> window, have the use click "Next" and get another window. My
> understanding is that it is undesirable to ha
Quoting "D. Hartley" <[EMAIL PROTECTED]>:
> anyone have a pointer to a *SIMPLE* intro to xml as used in python? I
> looked in the library and there are about 11 xml-related modules.
>
> Perhaps something 'remote'. ;)
Use ElementTree!
(google for it)
--
John.
__
Joseph,
I don't know if this will help or not, but some observations:
> def manipulate():
> manipulate = raw_input("Type 'help' for help\nManipulate>> ")
> if manipulate == "play":
> w.tell()
> elif manipulate == "back()":
> main_menu()
You expect the user to typ
Your mail came as an attachment so no quoted text, but basically
there are two approaches to your problem of a Wizard.
In Tkinter you normally use a Frame as your main window.
You can pack another Frame inside that frame with your content.
When you press next simply unpack frame 1 and pack frame
D. Hartley wrote:
> And just in case anyone *isnt* working on the riddles:
>
> anyone have a pointer to a *SIMPLE* intro to xml as used in python? I
> looked in the library and there are about 11 xml-related modules.
ElementTree is my choice too. It is simple and easy to use though a bit
bar
I looked at the page for ElementTree that Max sent out, but I can't
understand what it's even talking about. Looking through the python
modules it seems like I need xmlrpclib - I created a serverproxy
instance, which I want to use to talk to a server - to send it
information (in this case, a name),
I am having trouble understanding the c|Pickle modules. What does
serializing and de-serializing objects mean? I have read the below
urls and I "think" I understand the process, but I can't visualize the
beneifts. Can someone kindly explain pickling in lamens terms?
Thanks,
Tom
http://effbot
Quoting Tom Tucker <[EMAIL PROTECTED]>:
> I am having trouble understanding the c|Pickle modules. What does
> serializing and de-serializing objects mean? I have read the below
> urls and I "think" I understand the process, but I can't visualize the
> beneifts. Can someone kindly explain pickling
On Tue, 24 May 2005, D. Hartley wrote:
> I looked at the page for ElementTree that Max sent out, but I can't
> understand what it's even talking about.
Hello Denise,
ElementTree is a third-party module by the Effbot for handling some of the
drudgery that is XML parsing:
http://effbot.org
I just want to take a moment to express my deep appreciation for this
List. As one who is learning Python as amateur, in my spare moments, and
already getting it to do good work for me, these clear, beautifully worked
descriptions of basic aspects of Python are simply an ongoing delight for
John,
Thanks that did help. Like usual, I was making it harder than necessary.
Tom,
I concur! Well put!
On 5/24/05, Tom Cloyd <[EMAIL PROTECTED]> wrote:
> I just want to take a moment to express my deep appreciation for this
> List. As one who is learning Python as amateur, in my spare moments
Jeff Peery wrote:
> ok, thanks. that makes sense; however I do not know how to pass a
> variable from my parent frame to the dialog. I have tried this before
> unsuccessfully. could you provide a quick example of how to pass a
> variable to a dialog from a frame. I am not sure how this works. t
Good evening! I am trying to pass a number variable and have it
converted to hex. Any recommendations on how to achieve this? Thank
you.
FAILS
--
>>> value = 1234567890
>>> hexoutput = hex('%d' % (value))
Traceback (most recent call last):
File "", line 1, in ?
TypeError: hex() argume
actually I got it to work! thanks for the help.
JeffKent Johnson <[EMAIL PROTECTED]> wrote:
Jeff Peery wrote:> ok, thanks. that makes sense; however I do not know how to pass a > variable from my parent frame to the dialog. I have tried this before > unsuccessfully. could you provide a quick exam
> FAILS
> --
> >>> value = 1234567890
> >>> hexoutput = hex('%d' % (value))
> Traceback (most recent call last):
> File "", line 1, in ?
> TypeError: hex() argument can't be converted to hex
Just don't convert the number to a string, e.g:
>>> value = 1234567890
>>> hexoutput = hex(value
Thanks!I see the mistake.
On 5/24/05, Tony Meyer <[EMAIL PROTECTED]> wrote:
> > FAILS
> > --
> > >>> value = 1234567890
> > >>> hexoutput = hex('%d' % (value))
> > Traceback (most recent call last):
> > File "", line 1, in ?
> > TypeError: hex() argument can't be converted to hex
>
On Tue, 2005-05-24 at 22:56 -0400, Tom Tucker wrote:
> Good evening! I am trying to pass a number variable and have it
> converted to hex. Any recommendations on how to achieve this? Thank
> you.
>
> FAILS
> --
> >>> value = 1234567890
> >>> hexoutput = hex('%d' % (value))
> Traceback (
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