When I run this little test program on Linux:
import subprocess
subprocess.call(["python","-V"], stderr=open("log.tmp","a"))
the file log.tmp is appended to each time I run it.
When I run it on Windows, however, the file log.tmp gets
overwritten each time I run it.
Though I can make it append on
I'd like to convert the following Perl code to Python:
use strict;
{
my %private_hash = ( A=>42, B=>69 );
sub public_fn {
my $param = shift;
return $private_hash{$param};
}
}
print public_fn("A"); # good: prints 42
my $x = $private_hash{"A"}; # error: good, hash n
Fredrik Lundh wrote:
># sort items on descending count
>deco = sorted(freq.items(), key=lambda x: -x[1])
Neat. Is there any way to use sorted() with multiple sort keys? ...
Given that the spec calls for sorting by _two_ keys: first by
frequency (descending), then by name (ascending). To c
I'm learning Python by reading David Beazley's "Python Essential Reference"
book and writing a few toy programs. To get a feel for hashes and sorting,
I set myself this little problem today (not homework, BTW):
Given a string containing a space-separated list of names:
names = "freddy fred
--- "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> Using itertools:
>
> import itertools
>
> s = 'ABBBCC'
> print [''.join(grp) for key, grp in itertools.groupby(s)]
Nice.
> Using re:
>
> import re
>
> pat = re.compile(r'((\w)\2*)')
> print [t[0] for t in re.findall(pat, s)]
Also nice. Esp
Python beginner here.
For a string 'ABBBCC', I want to produce a list ['A', 'BBB', 'CC'].
That is, break the string into pieces based on change of character.
What's the best way to do this in Python?
Using Python 2.5.1, I tried:
import re
s = re.split(r'(?<=(.))(?!\1)', 'ABBBCC')
for e in s: pri
