On Sat, Feb 20, 2010 at 8:07 AM, Shurui Liu (Aaron Liu)
wrote:
> How to describe a math formula: sphere=(4/3)*PI*R**3?
A function seems like the logical thing to do:
import math
def spherical_volume(radius):
return (4.0/3)*math.pi*radius**3
--
André Engels, andreeng...@gmail.com
_
How to describe a math formula: sphere=(4/3)*PI*R**3?
--
Shurui Liu (Aaron Liu)
Computer Science & Engineering Technology
University of Toledo
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OK, I'm completely on Win7. hello.exe works as expected by the
tutorial. That file is in dist. I've now tried this program,
pylab_scatter.py:
#!/usr/bin/env python
from pylab import *
N = 30
x = 0.9*rand(N)
y = 0.9*rand(N)
area = pi*(10 * rand(N))**2 # 0 to 10 point radiuses
scatter(x,y,s=a
On Fri, Feb 19, 2010 at 7:07 PM, Steven D'Aprano wrote:
> On Sat, 20 Feb 2010 06:33:04 am Kent Johnson wrote:
>
>> It sounds like you are looking for eval()
>>
>> (Standard warning - use eval() only on trusted data)
>
>
> This is the tutor list, aimed at beginners to Python, many of whom are
> als
Looks like the eval() will work great. Thanks so much for telling me.
>
>We normally warn against using eval/exec because
they form a security risk. But in your case you
are in control of the code that they execute so
its ok. That is the kind of usage where they
are the best solution.
Be ve
On Sat, 20 Feb 2010 06:33:04 am Kent Johnson wrote:
> It sounds like you are looking for eval()
>
> (Standard warning - use eval() only on trusted data)
This is the tutor list, aimed at beginners to Python, many of whom are
also beginners to programming as well. Even experienced programmers
of
Am 19.02.2010 22:24, schrieb Lie Ryan:
> On 02/20/10 07:49, Norman Rieß wrote:
>
>> Am 19.02.2010 21:42, schrieb Lie Ryan:
>>
>>> On 02/19/10 23:42, Norman Rieß wrote:
>>>
>>>
Hello,
i am trying to read a large bz2 file with this code:
source_file = bz2.BZ
XP. Win 7, I hope, by the end of the day. Stuff is working under Win 7
from my transfer of it from a week or so ago. The only thing I left on
XP was the py2exe stuff. I'm writing this from my Win 7 machine.
There's a big twist in this. I've verified that when I typed the name
w/o py, it really
Things were not quite what the seem.
I just tried to run a program that was not converted, and left off py.
It worked.
So maybe the only way to execute the compiled code is to to to dist?
--
"There is nothing so annoying as to have two people
talking when you're busy
Am 19.02.2010 22:03, schrieb Kent Johnson:
> On Fri, Feb 19, 2010 at 7:42 AM, Norman Rieß wrote:
>
>> Hello,
>>
>> i am trying to read a large bz2 file with this code:
>>
>> source_file = bz2.BZ2File(file, "r")
>> for line in source_file:
>>print line.strip()
>>
>> But after 4311 lines, it
Thanks Kent and Alan!!
Problem solved, eval() will work great!
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I suppose I'm in an interesting situation with regard to Win cmd prompt.
I did this work on XP. There the facility is a bit more constraining
than Win7 on my new PC. On XP, I do not have name completion w/o
setting something. I only recently started with cmd prompt again. In
Win7, it's automa
On 02/20/10 07:49, Norman Rieß wrote:
> Am 19.02.2010 21:42, schrieb Lie Ryan:
>> On 02/19/10 23:42, Norman Rieß wrote:
>>
>>> Hello,
>>>
>>> i am trying to read a large bz2 file with this code:
>>>
>>> source_file = bz2.BZ2File(file, "r")
>>> for line in source_file:
>>> print line.strip()
On 02/20/10 07:42, Lie Ryan wrote:
> On 02/19/10 23:42, Norman Rieß wrote:
>> Hello,
>>
>> i am trying to read a large bz2 file with this code:
>>
>> source_file = bz2.BZ2File(file, "r")
>> for line in source_file:
>> print line.strip()
>>
>> But after 4311 lines, it stoppes without a errormess
On Fri, Feb 19, 2010 at 7:42 AM, Norman Rieß wrote:
> Hello,
>
> i am trying to read a large bz2 file with this code:
>
> source_file = bz2.BZ2File(file, "r")
> for line in source_file:
> print line.strip()
>
> But after 4311 lines, it stoppes without a errormessage. The bz2 file is
> much bigg
Am 19.02.2010 21:42, schrieb Lie Ryan:
> On 02/19/10 23:42, Norman Rieß wrote:
>
>> Hello,
>>
>> i am trying to read a large bz2 file with this code:
>>
>> source_file = bz2.BZ2File(file, "r")
>> for line in source_file:
>> print line.strip()
>>
>> But after 4311 lines, it stoppes without a
On 02/19/10 23:42, Norman Rieß wrote:
> Hello,
>
> i am trying to read a large bz2 file with this code:
>
> source_file = bz2.BZ2File(file, "r")
> for line in source_file:
> print line.strip()
>
> But after 4311 lines, it stoppes without a errormessage. The bz2 file is
> much bigger though.
"Wayne Watson" wrote
pylab_scatter.exe. Interestingly, if I fire it up from the Win folder, a
dos-window appears and it dies. A few lines appear too quickly to read.
If I execute it from the command prompt, it works fine. Still the mystery
to me is why I don't need to add exe in the cmd prompt
"Carnell, James E" wrote
I am trying to teach a computer program - to program. It builds grammars
and procedural memories on dictionary networks. How do I get the program
to be able to input to the interpreter/command line and read the
results?
You probably don;t want to do that. I suspect
On Fri, Feb 19, 2010 at 1:56 PM, Carnell, James E
wrote:
>
> I am trying to teach a computer program - to program. It builds grammars and
> procedural memories on dictionary networks. How do I get the program to be
> able to input to the interpreter/command line and read the results? I have
> done
I am trying to teach a computer program - to program. It builds grammars
and procedural memories on dictionary networks. How do I get the program
to be able to input to the interpreter/command line and read the
results? I have done this a wee bit with making a dictionary of
functions, but in a sen
Am 19.02.2010 17:04, schrieb Steven D'Aprano:
> My guess is one of two things:
> (1) You are mistaken that the file is bigger than 4311 lines.
>
> (2) You are using Windows, and somehow there is a Ctrl-Z (0x26)
> character in the file, which Windows interprets as End Of File when
> reading files
Wayne,
I am assuming you are using Win 7 and I'll answer with that unless you tell me
you are using XP in which case I will walk over to my wife's desk and test
what I am telling you on her XP driven machine.
Assuming Windows 7.
Looking at your directory you should be using Windows Explorer. Cli
spir wrote:
On Thu, 18 Feb 2010 09:11:22 -0500
Kent Johnson wrote:
It's true that solving a problem often involves creating an algorithm
in a broad sense. The formal study of algorithms studies specific
techniques and algorithms that have proven to be useful to solve many
hard problems. In
Norman Rieß, 19.02.2010 13:42:
> i am trying to read a large bz2 file with this code:
>
> source_file = bz2.BZ2File(file, "r")
> for line in source_file:
> print line.strip()
>
> But after 4311 lines, it stoppes without a errormessage.
What does "stops" mean here? Does it crash? Does it exit
On Fri, 19 Feb 2010 11:42:07 pm Norman Rieß wrote:
> Hello,
>
> i am trying to read a large bz2 file with this code:
>
> source_file = bz2.BZ2File(file, "r")
> for line in source_file:
> print line.strip()
>
> But after 4311 lines, it stoppes without a errormessage. The bz2 file
> is much bigg
The answer now appears in "Wrestling with ...". It's in a dist folder
that py2exe produces. See Robert Berman post today, 2/19 early in
morning. 5:34 am here.
On 2/19/2010 7:00 AM, Wayne Watson wrote:
I've successfully compiled several small python programs on Win XP
into executables using py
Sneaky! :-) Yes, I now recall you mentioning it earlier. I'm looking at
dist right now. I see a program I built in a folder above dist,
pylab_scatter.exe. Interestingly, if I fire it up from the Win folder, a
dos-window appears and it dies. A few lines appear too quickly to read.
If I execute i
I've successfully compiled several small python programs on Win XP into
executables using py2exe. A program goes from a name like snowball.py to
snowball. A dir in the command prompt window finds snowball.py but not
snowball. If I type in snowball, it executes. What's up with that?
--
Wayne,
Somewhere in the tutorial should be a comment about py2exe creating two
additional directories: build and dist. Forget about the build directory. If
you look in the dist directory you will find the exe file and all supporting
files. If you look back to an earlier email you will see a more d
Hello,
i am trying to read a large bz2 file with this code:
source_file = bz2.BZ2File(file, "r")
for line in source_file:
print line.strip()
But after 4311 lines, it stoppes without a errormessage. The bz2 file is
much bigger though.
How can i read the whole file line by line?
Thank you.
On Thu, 18 Feb 2010 09:11:22 -0500
Kent Johnson wrote:
> It's true that solving a problem often involves creating an algorithm
> in a broad sense. The formal study of algorithms studies specific
> techniques and algorithms that have proven to be useful to solve many
> hard problems. In my experie
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