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Full Discussion: Python: Compare 2 word lists
Top Forums Programming Python: Compare 2 word lists Post 302533837 by alister on Friday 24th of June 2011 09:36:12 PM
Old 06-24-2011
Quote:
Originally Posted by yazu
Look at PLEAC in Arrays in the section: Finding Elements in One Array but Not Another
From the section of the webpage that you recommended:
Code:
#    build lookup table
for item in b_list:
    seen[item] = 1

#    find only elements in a_list and not in b_list
for item in a_list:
    if not item not in seen:
        # it's not in 'seen', so add to 'aonly'
        aonly.append(item)

That code does the exact opposite of what it's supposed to do. One of the "not" boolean operators needs to go. For the sake of readability, preferably the first one.

Feel free to pass along a patch to the authors if you like.

Regards,
Alister
 

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pods::SDL::Color(3pm)					User Contributed Perl Documentation				     pods::SDL::Color(3pm)

NAME
SDL::Color - Format independent color description CATEGORY Core, Video, Structure SYNOPSIS
my $black = SDL::Color->new(0, 0, 0); my $color = SDL::Color->new(255, 0, 0); my $r = $color->r; # 255 my $g = $color->g; # 0 my $b = $color->b; # 0 $color->g(255); $color->b(255); # $color is now white DESCRIPTION
"SDL_Color" describes a color in a format independent way. METHODS
new my $color = SDL::Color->new(255, 0, 0); The constructor creates a new color with the specified red, green and blue values. r my $r = $color->r; $color->r(128); If passed a value, this method sets the red component of the color; if not, it returns the red component of the color. g my $g = $color->g; $color->g(128); If passed a value, this method sets the green component of the color; if not, it returns the green component of the color. b my $b = $color->b; $color->b(128); If passed a value, this method sets the blue component of the color; if not, it returns the blue component of the color. SEE ALSO
SDL::Surface AUTHORS
See "AUTHORS" in SDL. perl v5.14.2 2012-05-28 pods::SDL::Color(3pm)
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