Instead of learning only Scheme or only Python for a one semester intro
course, what about learning BOTH? Maybe that could somehow
get the benefits of both?
I'm thinking that for the VERY beginning, Scheme is the fastest language
to get beginners up and running writing code due to the extremely m
Thanks.. I think your 10% Python idea is the way to go. And you are right
that most of Python is not needed in an intro course.
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On Friday, January 3, 2014 11:10:07 AM UTC-6, Devin Jeanpierre wrote:
> A lecturer of mine back in university did this (implemented a subset
>
> of Python in Racket). My understanding is that this is primarily
>
> interesting to show that Racket is not as crazily different as it
>
> looks from
Exceptions, modules, OOP, etc. would be tricky to implement in Scheme but at
least the basics like for loops, while loops, assignment etc. would seem doable
and very instructive for students.they would thereafter, for all time, have
a mental image of what the Python interpreter is doing.
I've heard it said, by no less a guru than Peter Norvig, that Python is a lot
like Lisp without the parentheses at least for the basics of Python.
For pedagogical reasons, I'm wondering if it would be easy to implement a big
subset of Python in Scheme.
The basics of Scheme or Lisp are ama
It looks like I can miss some logging messages if I don't flush after
every oneis that true?
This is an issue when program crashes so that logger didn't get a
chance to print everything.
Is there some way to set logging to constantly flush?
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On Jun 16, 11:27 am, Stephen Hansen wrote:
> On 6/16/10 7:04 AM, Chris Seberino wrote:
>
> > On Jun 15, 2:03 pm, Stephen Hansen wrote:
>
> >> Just call "process.wait()" after you call process = subprocess.Popen(...)
>
> > I may have not been clear.
On Jun 15, 2:03 pm, Stephen Hansen wrote:
> Just call "process.wait()" after you call process = subprocess.Popen(...)
I may have not been clear.
I *don't* want web app to block on Popen.wait.
I *do* want the Popen process to run in the background which web app
still runs doing other things.
Possible to make subprocess.Popen jobs run serially rather than in
parallel?
In other words, if a computer is low on memory and doesn't mind
waiting.can Popen be configured to submit to a queue and run jobs
*ONE AT TIME*??
That might be useful and avoid crashes and disk swapping.
cs
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On Jun 15, 2:44 am, News123 wrote:
> ChrisSeberinowrote:
> > I tried to use subprocess.Popen to make my web app do a bunch of stuff
> > in separate processes today. It appeared like only the first one
> > finished and/or the rest of the forked processes crashed.
> First thing to do would be to s
I tried to use subprocess.Popen to make my web app do a bunch of stuff
in separate processes today. It appeared like only the first one
finished and/or the rest of the forked processes crashed.
I only have around 300Mb. Is it possible that my subprocess.Popen
code was swapping to disk so much th
On Jun 10, 6:52 am, Nobody wrote:
> Without the p1.stdout.close(), if the reader (grep) terminates before
> consuming all of its input, the writer (ls) won't terminate so long as
> Python retains the descriptor corresponding to p1.stdout. In this
> situation, the p1.wait() will deadlock.
>
> The c
How do subprocess.Popen("ls | grep foo", shell=True) with shell=False?
Does complex commands with "|" in them mandate shell=True?
cs
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On Oct 16, 9:51 am, MRAB wrote:
> What do you mean "blow up"? It worked for me in Python v2.6.2.
My bad. False alarm. This was one of those cases where a bug in
another area appears like a bug in a different area.
Thank for the help.
cs
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What does this line do?...
input_ = re.sub("([a-zA-Z]+)", '"\\1"', input_)
Does it remove parentheses from words?
e.g. (foo) -> foo ???
I'd like to replace [a-zA-Z] with \w but \w makes it blow up.
In other words, re.sub("(\w+)", '"\\1"', input_) blows up.
Why?
cs
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Where regexs listed for Python language's tokenizer/lexer?
If I'm not mistaken, the grammar is not sufficient to specify the
language
you also need to specify the regexs that define the tokens
right?..where is that?
chris
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I'd like to build a lexer aka lexical analyzer aka tokenizer for
Python source code as a learning exercise.
Where can I find the regexs that define the tokens of Python source?
(I am aware of tokenizer.py but I was hoping there was a web page w/ a
list somewhere.)
cs
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How build new elements to replace existing ones using xml.dom.minidom?
Specifically, I have an HTML table of numbers. I want to replace
those numbers with hyperlinks to create a table of hyperlinks.
So I need to build hyperlinks (a elements) with href attribute and
replace the text elements (num
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