>
> I suspect that the "inspection" module has your answer, but that it'll be
> bulkier, and much slower than just doing what you're doing already.
>
Hmm.
Yeah, it does appear to be bulky. I don't think it's really any more use
than what I'm doing already.
Why not use the default arguments gimmic
Hi,
I was wondering if there was a shorthand way to get a reference to a method
object from within that method's code.
Take this code snippet as an example:
import re
class MyClass(object):
def find_line(self, lines):
if not hasattr(MyClass.do_work, "matcher"):
MyClass.do_
2009/4/30 Lie Ryan
> container[:] = sorted(container, key=getkey)
>>
>> is equivalent to:
>>
>> container.sort(key=getkey)
>>
>>
> Equivalent, and in fact better since the sorting is done in-place instead
> of creating a new list, then overwriting the old one.
Not when, as pointed out
Hi,
How would I use python to simply read a specific number of characters
from standard input?
raw_input() only returns when the user inputs a new line (or some
other special character).
I tried
>>> import sys
>>> sys.stdin.read(15)
and that *returns* up to 15 characters, but it keeps accepting i
Thanks for all your replies.
A lot of very strong answers :)
2009/3/26 Mensanator :
> What would you have to do to make this work?
>
x+x+x # expecting [3,6]
> [2, 4, 1, 2]
What's happening is that the call to map() is returning a list object.
So after it calculates the first "x+x", you
Hi,
As our resident python advocate, I've been asked by my team leader to
give a bit of a presentation as an introduction to python to the rest
of our department.
It'll be less than an hour, with time for taking questions at the end.
There's not going to be a whole lot of structure to it. First, I
2009/2/27 venutaurus...@gmail.com :
> Thanks for the reply,,
> I am trying to use the above application using psexec()in
> command line.But it failed returning the error message
>
> exited with error code 255.
>
> But when I ran the application normally it worked
> fine.Do
Try this as an outline:
script1.py
from subprocess import Popen
if __name__ == '__main__':
scriptname = "script2.py"
Popen("python %s" % scriptname, shell=True)
print "I'm done"
script2.py
from time import sleep
if __name__ == '__main__':
while (True):
2009/2/24 John Nagle :
> Martin v. Löwis wrote:
Please don't call something dumb that you don't fully understand. It's
offenses the people who have spent lots of time developing Python --
personal, unpaid and voluntary time!
>
> Some of the people involved are on Google's payr
2009/2/20 Bruno Desthuilliers :
> Check by yourself:
>
import inspect
inspect.isfunction(property)
> False
Using this, every single builtin function returns False. That's a
pretty limited definition to be being pedantic over, especially when
they are in the "Built-in Functions" section of
2009/2/20 Bruno Desthuilliers :
>> Interesting. Why shouldn't you?
>> I haven't used the property() function
>
> s/function/object/
Nice try, but what I wrote was what I intended to say:
http://docs.python.org/library/functions.html#property
For all I know I could have used property objects sever
2009/2/20 Bruno Desthuilliers :
> Note that while you *can* do direct access to the implementation attribute
> (here, '_A' for property 'A'), you don't *need* to so (and usually shouldn't
> - unless you have a very compelling reason).
Interesting. Why shouldn't you?
I haven't used the property() f
2009/2/16 Python Nutter :
> silly me, forgot to mention
>
> build a set from digits + '.' and use that for testing.
>
> Cheers,
> PN
>
>
> 2009/2/16 Python Nutter :
>> Type casting seems to be the wrong way to go about this.
>>
>> teststring = '15719'
>> teststring.isdigit()
>> returns True
>>
>> T
2009/2/17 MRAB :
> It isn't possible to have an uninitialised variable. If it doesn't have
> a value then it doesn't exist.
True, but you can use the global statement to refer to the variable
within a function and read from the variable there, without it being
already initialised in the module.
O
Use the global statement.
http://docs.python.org/reference/simple_stmts.html#the-global-statement
A working example based on your pseudocode would be:
def getA():
global A
return A
def getB():
global B
return B
def setA(value):
global A
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