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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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answered Mar 27 '11 at 4:01
Winston EwertWinston Ewert
39.1k1010 gold badges6262 silver badges7878 bronze badges
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How to create a cron job using Bash automatically without the interactive editor?
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20 Answers
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Checking images for similarity with OpenCV
...ue (maybe a percentage) that indicates how similar these images are? E.g. 100% would be returned if the same image was passed twice, 0% would be returned if the images were totally different.
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How do I iterate over an NSArray?
...d idiom to iterate over an NSArray. My code needs to be suitable for OS X 10.4+.
8 Answers
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How do I install from a local cache with pip?
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Replace only some groups with Regex
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answered May 15 '11 at 0:13
bluepnumebluepnume
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(![]+[])[+[]]… Explain why this works
..., for example.
![]; // false, it was truthy
!{}; // false, it was truthy
!0; // true, it was falsey
!NaN; // true, it was falsey
After it, we have the second operand of the addition, an empty Array, [], this is made just to convert the false value to String, because the string representation of...
Blocks on Swift (animateWithDuration:animations:completion:)
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the completion parameter in animateWithDuration takes a block which takes one boolean parameter...
Comparing two CGRects
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250
Use this:
if (CGRectEqualToRect(self.view.frame, rect)) {
// do some stuff
}
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Textarea Auto height [duplicate]
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autosize(document.getElementById("note"));
textarea#note {
width:100%;
box-sizing:border-box;
direction:rtl;
display:block;
max-width:100%;
line-height:1.5;
padding:15px 15px 30px;
border-radius:3px;
border:1px solid #F7E98D;
font:13px Tahoma, cursive;
transition:box-sha...