That's completely unnecessary. Just pass a set of time,value
pairs and they'll get plotted as desired.
--
Grant Edwards grante Yow! As a FAD follower,
at my BEVERAGE choices are
visi.comrich and fulfilling!
--
http://mail.python.org/mailman/listinfo/python-list
On 2005-10-20, Grant Edwards <[EMAIL PROTECTED]> wrote:
>> and insert None (or whatever value is used by charting
>> package) for times where observations were not taken. This
>> will mean that you have to preprocess your data by determining
>> a time step step valu
; a VB project just including it in the references
> configuration. But I can't access it from python. I tried the
> ctypes module.
ctypes has always worked for me.
Sorry, I've no clue about anything VB-related unless it's
Victoria Bitter.
--
Grant Edwards
calls a .sh script that executes the
> export command and then calls another .py script (and how would the
> first .py script look)?
Good grief, that's ugly. Just use os.putenv().
> That would be much more what is my basic problem.
And even Google knows the correct answer
http
On 2005-10-21, Ernesto <[EMAIL PROTECTED]> wrote:
> Thanks. Can anyone provide an example of using *subprocess* to run
> helloWorld.C through the python interpreter.
No. You can't run a .C file. You can run a .exe file (I'm
guessing you're using Windows based on
Generating Python byte code from Pascal wouldn't be
terribly difficult, but doing so for C would be pretty tough
because you'd have to figure out how to fake all the low-level
pointer shenanigans which C allows (or some would say depends
upon).
--
Grant Edwards
On 2005-10-21, Micah Elliott <[EMAIL PROTECTED]> wrote:
> On Oct 21, Grant Edwards wrote:
>> I'm guessing you're using Windows based on the question.
>
> +1 QOTW.
Yow! That's two in one day, what do I win?
--
Grant Edwards grante
#x27;,'.join(ticstrings))
gp.plot(data)
pause()
outfile = 'foo.png'
gp('set term png')
gp('set out "%s"' % outfile)
gp.plot(data)
--8<--
--
Grant Edwards grante Yow! ... The waitress's
at UNIFORM sheds TARTAR SAUCE
visi.comlike an 8" by 10" GLOSSY...
--
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x27;)
I don't get why people seem to be obfuscating things with
multiple layers of shells or writing shell commands to to a
file and executing them.
> Maybe the results order has changed since you looked?
No, I mixed them up.
My point: the OP wanted to know how to export an environ
On 2005-10-21, Mike Meyer <[EMAIL PROTECTED]> wrote:
> Grant Edwards <[EMAIL PROTECTED]> writes:
>> My point: the OP wanted to know how to export an environment
>> variable to a child process. Either of the lines of code above
>> will do that, so what
On 2005-10-21, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> gp('set term png')
>
> is this an example of sending normal gnuplot commands?
Yes.
> if so, are all of the gnuplot commands available ?
Yes.
--
Grant Edwards grante
obably warps one's perception
of what's obvious and what isn't.
--
Grant Edwards grante Yow! My face is new, my
at license is expired, and I'm
visi.comunder a
stored in plot_times[]..
We can't read your mind. Unless you show us actual code, we
can't help. Show us a small example program with Gnuplot's
debug feature enabled that doesn't do what you want it to.
Tell us what it is you wanted the program to do and post the
output from t
t's your problem. Look at the ticstrings value that
worked, and look at the ticstrings value that didn't work.
What is the difference between the two?
> because its a little different application of time.
>
> i think i am having trouble knowing exactly what the set xt
cs (seconds since start of run)
gp.plot(data)
pause()
# same data with x value as Unix timestamps
xdata = [x+start for x in xdata]
print xdata
data = Gnuplot.Data(xdata,ydata,with='linespoints',using=(1,2))
gp('set xdata time')
gp('set timefmt "%s')
gp('set format x "%r"')
gp('set xtics 120')
gp.plot(data)
pause()
--8<--
--
Grant Edwards grante Yow! LOOK!!! I'm WALKING
at in my SLEEP again!!
visi.com
--
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On 2005-10-25, Grant Edwards <[EMAIL PROTECTED]> wrote:
> It looks like it. Though I've used custom tics in the past, it
> was never for time values. Based on the help from gnuplot, I
> suspect you can get what you want without doing custom tics,
> but rather using the co
On 2005-10-25, Grant Edwards <[EMAIL PROTECTED]> wrote:
> It appears that the Gnuplot modules has coerced my data into
> single-precision -- thus throwing away most of the resolution
> on the x-axis.
Passing Gnuplot.Data a Numeric array object is a good
work-around. Otherwise, Gn
sage out of order;
Uh, no. Isn't what we're doing here top-quoting? The quoted
stuff is at the top. Everything is in chronological order. I
think what you're referring to is "top-posting".
--
Grant Edwards grante Yow! ..
On 2005-10-26, Duncan Booth <[EMAIL PROTECTED]> wrote:
> Grant Edwards wrote:
>
>> Uh, no. Isn't what we're doing here top-quoting? The quoted
>> stuff is at the top. Everything is in chronological order. I
>> think what you're referring to is &quo
the for loop to detect the case
where you ran out of retries:
for i in range(retries):
try:
whatever
break
except retryableExceptionList:
sleep(delay)
else:
whatelse
> Is it worth for a PEP?
I don't think you can come up with a syntax that is really that
much better
know about the named
pipe and open it. I don't think there is any way to swap a
pipe in for stdin/stdout once a process is running.
--
Grant Edwards grante Yow! NOW, I'm supposed
at to SCRAMBLE two, and HOLD
visi.comth' MAYO!!
--
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o write a Python program that can "attach" pipes to that
already running program's stdin/stdout. I know there's no way
to do that under Unix. IIRC, the OP is running Win32, and I'm
not quite as confident that it can't be dont under Win32, but I
don't think it can.
Maybe we could round up a couple of designers to donate some
> time? Maybe we could build a basic CMS on top of Django or
> TurboGears (displaying Python's capability as a web
> development stack)?
I like the Python web site. It's simple, easy to read, and easy to
use. Just li
On 2005-11-01, James Stroud <[EMAIL PROTECTED]> wrote:
> Why do my posts get held for suspcious headers and troll Xha
> Lee gets to post all sorts of profanity and ranting without
> any problem?
Held? It's not a moderated group...
--
Grant Edwards gr
lash chunk is pretty clever. Most sites
just have a large blank rectangle where the flash stuff is
supposed to be. These guys have figured out that they should
put something _under_ the flash rectangle that elicits a click
out of people who have flash disabled by default.
Um, not that I clicked,
On 2005-11-01, James Stroud <[EMAIL PROTECTED]> wrote:
> On Tuesday 01 November 2005 14:26, Grant Edwards wrote:
>> On 2005-11-01, James Stroud <[EMAIL PROTECTED]> wrote:
>> > Why do my posts get held for suspcious headers
> ...
>> Held? It's not a
, see the discussions and help the people. but
> it is ur decision.
There's _already_ a tutor mailing list and a general Python
newsgroup -- both full of knowledgeable and helpful people.
[Since I took a shot at this guy's spelling, there's _got_ to
be a spelling error in
ture?
> 2. how would I skip every 2nd, 3rd, or 4th byte to protect privacy?
2nd, 3rd, 4th, byte of what?
Doesn't your OS have an entropy-gathering RN generator built-in?
--
Grant Edwards grante Yow! Yow! I forgot my
g" is an array of 8-bit
bytes.
If you want the integer equivalent of the 3rd byte in a string s,
do this:
b = ord(s[2])
For example:
>>> s = "ABC"
>>> ord(s[0])
65
>>> ord(s[1])
66
>>> ord(s[2])
67
If you want a list of the
On 2005-11-02, Neil Schemenauer <[EMAIL PROTECTED]> wrote:
> Grant Edwards <[EMAIL PROTECTED]> wrote:
>> Doesn't your OS have an entropy-gathering RN generator built-in?
>
> Alternatively, if you want lots of high-quality random numbers, buy
> a cheap web ca
<" and ">" I bet, and
> relatively few "\x03").
I've never heard of anybody using the data as source of
entropy. All the entropy gathering I've read about used the
timing of network events, not the user-data associated with
hose events.
>
> Me neither, but the original poster did ask how to read every nth byte
> of "the Internet stream", so I assumed he had something like that in mind.
I agree that would be a pretty bad idea unless you went to some
effort to reduce the bias in the distribution of the
't be any fun.)
That's for sure. The real questions are rarely as interesting
and the imagined ones.
--
Grant Edwards grante Yow! Well, O.K. I'll
at compromise with my
ty and loading the next
byte into the data register. Many OSes "drain" functions are
notoriously inaccurate.
--
Grant Edwards grante Yow! Did I say I was a
at sardine? Or a bus???
vis
7;s very no-nonsense, but there are alot of available
packages and everything (so far) just works. However, it's not
for the impatient (or at least not for the poor and impatient).
Since it compiles packages from source, a full-featured desktop
install on a slow machine can take days
that I have to say that the RPM package tools suck
> quite badly.
You'd say the same think about Debian if all you had ever used
was dpgk, and I dare you to try to do anything with dselect.
> Debian and SUSE are both pretty good choices.
--
Grant Edwards
y be more trouble than it's worth.
In which case you could always use tput -- and it will still be
portable.
--
Grant Edwards grante Yow! I'm GLAD I
at remembered to XEROX all
On 2005-11-09, James Colannino <[EMAIL PROTECTED]> wrote:
> Bill Mill wrote:
>
>>+1 QOTW
>>
>>
>
> My ignorance shows here. What does that mean? :-P
It's a "vote" for Qutoe of the Week.
--
Grant Edwards
se the
string formatting operator "%" like this:
>>> x=.13241414515
>>> y = "%0.4g" % x
>>> y
'0.1324'
--
Grant Edwards grante Yow! A GRAM?? A BRAM... A
at
On 2005-11-09, Tuvas <[EMAIL PROTECTED]> wrote:
> Wait, one more question. If the number is something like:
>
> 1.32042
>
> It is like
> "1.32 stuff"
>
> I would like it's size to remain constant. Any way around this?
http://www.python.org/doc/current
r another level of protection
> maybe use these offuscator on the remaining Python source.
> What do you think ?
Um... sounds like an excellent way to burn hours while
introducing bugs and security problems?
--
Grant Edwards grante
?
Yes. C-Python "float" objects are of the C type "double" and
use 64-bit IEEE-754 representation on all the common platforms
I know about.
--
Grant Edwards grante Yow! .. or were you
On 2005-11-10, Dan Bishop <[EMAIL PROTECTED]> wrote:
> Grant Edwards wrote:
>> On 2005-11-09, Tuvas <[EMAIL PROTECTED]> wrote:
>>
>> > I would like to limit a floating variable to 4 signifigant digits, when
>> > running thorugh a str command.
>>
On 2005-11-10, Svenn Are Bjerkem <[EMAIL PROTECTED]> wrote:
> (and python can not do "set result [exec someprog << $input]"
> as far as I know)
I don't remember Tcl very well, but doesn't this do the same
thing?
result = os.popen(&#x
On 2005-11-11, Daniel Crespo <[EMAIL PROTECTED]> wrote:
> Is there a built-in method for transforming (1,None,"Hello!") to
> 1,None,"Hello!"?
What transformation? The two are identical:
>>> x = (1,None,"Hello!")
>>> y = 1,None,"He
set of widgets, event loop, handler
> methods etc.
http://tvision.sourceforge.net/
--
Grant Edwards grante Yow! I'm using my X-RAY
at VISION to obtain a rare
visi.c
to be "local to a module".
I don't think I even understand what the objection is. What is
needed is a code fragment that shows how the use of strings is
untenable.
--
Grant Edwards grante Yow! And furthermore,
at
On 2005-11-15, aum <[EMAIL PROTECTED]> wrote:
> On Mon, 14 Nov 2005 20:56:36 +0000, Grant Edwards wrote:
>
>>> Can anyone please recommend a widget library for text console,
>>> that works not only on *nix systems but windows /as well/?
>>> I'm lookin
On 2005-11-15, Ben Sizer <[EMAIL PROTECTED]> wrote:
> Grant Edwards wrote:
>> In the situations described, I always use strings
>> and have never felt the need for something else:
>
> ...
>
>> I don't think I even understand what the objection is. What i
me instead of passing up the proper exception (the
good, Pythonic thing to do), I'd be fairly pissed off at you.
An exception is the _right_ way to let the caller know
something is wrong.
--
Grant Edwards grante Yow! I smell like a wet
thon. Is it possible to run this function and still be able to do
> other things with Python while it is running?
Yes.
> Is that what threading is about?
Exactly. Take a look at the "treading" module:
http://www.python.org/doc/current/lib/module-threading.html
--
x shared
memory or whatnot. It's not difficult if you don't have to do
any communication between processes, but in that case, shared
objects aren't a problem either.
[...]
> That is why threads that don't do trivial things are so scary.
Maybe I've just been using t
ervice).
Obligatory aside: I'm completely baffled why anybody would choose the
mailing list format over Usenet. I don't even read mailing lists via
mailing lists. I recommend gmane.org's NNTP server for all your mailing
list needs.
--
Grant Edwards
On 2005-11-18, Daniel Crespo <[EMAIL PROTECTED]> wrote:
> I would like to know how can I do the PHP ternary operator/statement
> (... ? ... : ...) in Python...
The _PHP_ ternary operator (x?y:z)!
Kids these days!
--
Grant Edwards grante Yow! It&
l ears.
slrn is the definitive choice -- especially for a mutt user. :)
> I have tried to setup "tin" in the past but the voluminosity
> of its documentation made me give up.
I used tin for a couple years back in the early 90's, but I
find
or the
widget in question. Since you don't specify what toolkit you're
using, that about as specific an answer as you're going to get...
--
Grant Edwards grante Yow! I've read SEVEN
at
ed with the hex function).
>>
> aren't you converting from a hex string to a decimal value here?
No.
He's converting from a hex string to an integer object.
--
Grant Edwards grante Yow! It's OKAY --- I'm an
s fine under Windows Me with 32MB of RAM
ActivePython 2.3.4 Build 233 (ActiveState Corp.) based on
Python 2.3.4 (#53, Oct 18 2004, 20:35:07) [MSC v.1200 32 bit (Intel)] on win32
--
Grant Edwards grante Yow! Alright,
at
27;m
> still learning so please be gentle.
use the struct module
http://www.python.org/doc/current/lib/module-struct.html
--
Grant Edwards grante Yow! O.K.! Speak with a
at PHILADELPHIA ACCENT!! Send
rces and find the
typedefs.
> And what about the enum section?
It's probably a 32-bit integer, but it may take some
experimentation to confrim that.
--
Grant Edwards grante Yow! I invented skydiving
at
On 2005-11-23, amfr <[EMAIL PROTECTED]> wrote:
> On windows, is there anything special I have to do to read a binary
> file correctly?
Open it in binary mode?
--
Grant Edwards grante Yow! I didn't order
at
to move the cursor to the location where you
want to write, some terminals allow you to make the cursor
invisible. This can reduce the visual distraction when you
need to update something on the screen that isn't where the
cursor belongs (from the user's point of view).
--
Grant Ed
t's the best way to do this using python?
Use pyserial and a database interface module.
> Does anyone know of an existing software/python library/module
> for this?
Sorry.
--
Grant Edwards grante Yow! I'm ANN LANDERS!! I
x27;d need to set the correct port parameters
> with some other app,
Just use termios. Or better yet, pyserial.
> but it should be do-able.
--
Grant Edwards grante Yow! Intra-mural sports
at results are filtering
e credibility points in the
minds of most of the old-school Usenet denizens -- and having a
yahoo address subtracts a few more points. That just means
you're going to have to work a bit to get back up to the same
point that somebody with a real name and a "real" ISP would
start a
On 2005-12-06, Aahz <[EMAIL PROTECTED]> wrote:
> In article <[EMAIL PROTECTED]>,
> Grant Edwards <[EMAIL PROTECTED]> wrote:
>>
>>Hmm, I though he explained it:
>>
>> 1) Not using your real name.
>>
>> 2) A yahoo, aol, or hotmail
int value so I can read the flags represented here?
Use the struct module.
> Also, it's little (or big?) endian. Whatever... how do I
> manipulate the endianness?
Again, the struct module.
--
Grant Edwards grante Yow! ... I have read the
On 2005-12-06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> The only way to get the flags is as a float, either through an
> ascii string or a true float.
That's perverse.
Really.
Somebody needs to be slapped.
> The value of the float, however, is representable as 24 bits
> of normal binar
falo buffalo buffalo buffalo Buffalo buffalo."
Why the goofy-looking capitalization? Are the 2nd and 3rd
occurances of "Buffalo" referring to the city?
--
Grant Edwards grante Yow! All of life is a blur
at o
hen I do
print time.time()-time.time()
is usually about 2-3us, but some of that is probably due to the
overhead involved.
--
Grant Edwards grante Yow! TAILFINS!!...click...
at
vi
time measurement. I don't
know which library call the time modules uses, but if it's
gettimeofday(), that is limited to 1us resolution.
clock_gettime() provides an API with 1ns resolution. Not sure
what the actual data resolution is...
--
Grant Edwards
On 2005-12-07, Grant Edwards <[EMAIL PROTECTED]> wrote:
>> if I run this on the Windows 2K box I'm sitting at right now, it settles
>> at 100 for time.time, and 1789772 for time.clock. on linux, I get 100
>> for time.clock instead, and 262144 for time.time.
>
&
e()
After the first loop, I usually get one of three values:
3.099us, 2.14,us, 2.86us.
In any case, the resolution of time.time() _appears_ to be less
than 1us.
--
Grant Edwards grante Yow! Alright,
at you!
-2.86102294922e-06
-1.90734863281e-06
-2.14576721191e-06
-2.14576721191e-06
-9.53674316406e-07
-1.90734863281e-06
The min delta seen is 0.95us. I'm guessing thats
function/system call overhead and not timer resolution.
--
Grant Edwards grante Yow! I HAVE a towel.
at
visi.com
--
http://mail.python.org/mailman/listinfo/python-list
On 2005-12-07, Grant Edwards <[EMAIL PROTECTED]> wrote:
>>>> for f in range(10):
> ... print t()-t()
> ...
> -4.05311584473e-06
> -1.90734863281e-06
> -1.90734863281e-06
> -2.14576721191e-06
> -2.86102294922e-06
> -1.90734863281e-06
> -2.145767211
1e-06
>
> items from time to time on both machines...
We're seeing floating point representation issues.
The resolution of the underlying call is exactly 1us. Calling
gettimeofday() in a loop in C results in deltas of exactly 1 or
2 us. Python uses a C double to represent time, and
I assume that's what the underlying Linux system call is doing
(I haven't looked). Then it just rounds/truncates to the
nearest microsecond (because that's what the BSD/SysV/Posix API
specifies) when it returns the answer that Python sees.
--
Grant Edwards grante
(mod 17261) 0
24 fib 75077: 75076 (mod 75077) 0 <-- counter example
25 fib 80189: 80188 (mod 80189) 0
26 """
Not sure what Google Groups does to it...
--
Grant Edwards grante Yow! Now I understand the
On 2005-01-01, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Is there anything like script(1) for python interactive sessions.
$ script transcript.txt
Script started, file is transcript.txt
$ python
...
Not sure if there's a way to shut off readline...
--
g there might be something that was
already usable from Python.
Can anybody point me toward a Python module for approximating
scattered data using something like a Renka algorithm?
--
Grant Edwards grante Yow! How do I get HOME?
point HW, and if the evaluation takes
more than about 40ms, I'm going to have problems. The
evaluating the spline surface produced by scipy's FITPACK
wrapper was fast enough, but I had to force the scattered data
onto a grid (which introduced errors), and then the spline
su
ion?
Yes.
> I want to display results in windows message box.
--
Grant Edwards grante Yow! Pardon me, but do you
at know what it means to be
visi.comTRULY ONE with your BOOTH!
can be used
> for this, however, I can't find any good examples of how to
> use it. Any ideas as to where I can look?
I've you're dead set on using pty, I can tell you how to do it
in C, and maybe you can extrapolate.
--
Grant Edwards gr
. Using rectangular
operations in an editor was a ways down the list of alternatives.
--
Grant Edwards grante Yow! Is this ANYWHERE,
at USA?
visi.com
--
http://mail.python.org/mailman/listinfo/python-list
not :-)
>
> Microsoft Windows XP [Version 5.1.2600]
> (C) Copyright 1985-2001 Microsoft Corp.
>
> c:\>
That's not a command line. ;)
> 'cut' is not recognized as an internal or external command,
> operable program or batch file.
--
Grant Edwards
roubles for firewall admins.
It's to give corporate IT types the _illusion_ of security and
relieve them of the need to learn how to configure firewalls.
> But its not inherently more secure. That's a property of the
> application running.
--
Grant
hon is really, really painless.
--
Grant Edwards grante Yow! Someone is DROOLING
at on my collar!!
visi.com
--
http://mail.python.org/mailman/listinfo/python-list
On 2005-01-13, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Sorry, I should have mentioned it's linux (debian).
> Thanks.
What environment?
Console?
X11?
MGR?
???
--
Grant Edwards grante Yow! My ELBOW is a remote
\xff\xff'
>>> print struct.unpack('>f',bytes)
(-6.8056469327705772e+38,)
0xff is _not_ -6.8...e38. It's a NaN.
IIRC, it doesn't work for infinities either. I haven't tried
denormals.
--
Grant Edwards grante Yow! It
h the Python and C code at
> http://home.earthlink.net/~lvraab. The two files are ENIGMA.C and engima.py
http://www.catb.org/~esr/faqs/smart-questions.html
--
Grant Edwards grante Yow! Did an Italian CRANE
at
x27;m too lazy to compose and post a precise question, so
go look at my program and fix it for me."]
Now, go back and read the smart questions reference.
--
Grant Edwards grante Yow! Hello? Enema
a
do what you want
it to, I gaurantee that somebody will explain why it doesn't do
what you want and how to fix it.
--
Grant Edwards grante Yow! LOU GRANT froze
at my ASSETS!!
visi
ext function and test it to make sure it works.
Then the next function, etc.
--
Grant Edwards grante Yow! My ELBOW is a remote
at FRENCH OUTPOST!!
visi.com
--
http://mail.python.org/mailman/listinfo/python-list
he indexerror, but I feel a class is what you need
> here to make life easier and the program more readable
I'd probably numeric python (which I beleive is depricated, but
it's what I have installed) or numarray. I think either would
make it a lot easier. Using lists of lists when wha
On 2005-01-18, tertius <[EMAIL PROTECTED]> wrote:
> Is there a builtin function that will enable me to display the hex
> notation of a given binary string? (example below)
' '.join('%02x' % ord(b) for b in s)
--
Grant Edwards grante
On 2005-01-18, Grant Edwards <[EMAIL PROTECTED]> wrote:
> On 2005-01-18, tertius <[EMAIL PROTECTED]> wrote:
>
>> Is there a builtin function that will enable me to display the hex
>> notation of a given binary string? (example below)
>
> ' '.join
n do anything
> they want with your system without you doing "import module."
>
> Bottom line: Don't exec or eval untrusted code. Don't import untrusted
> modules.
I still don't see how that's any different for Python than for
any ot
act recipe, but I've got it at
work. If you can't figure it out by tomorrow, let me know and
I'll post a snippet from my setup.py file.
--
Grant Edwards grante Yow! Sometime in 1993
at NANCY SINATRA will
f so, what's the reasoning behind this?
Behind what?
> Again all of this pertains to files on Windows XP and Python 2.4
--
Grant Edwards grante Yow! Now that I have my
at "APPLE", I comprehend COST
other encoding
that doesn't use bit 7. Or, it could just be binary data that
happens to have bit 7 == 0.
> We could be of more help, if you would take the time to
> explain a little about what you are trying to do.
Yup.
--
Grant Edwards grante Yow!
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