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Efficient way to remove keys with empty strings from a dict
...n 2.X
dict((k, v) for k, v in metadata.iteritems() if v)
Python 2.7 - 3.X
{k: v for k, v in metadata.items() if v is not None}
Note that all of your keys have values. It's just that some of those values are the empty string. There's no such thing as a key in a dict without a value; if it d...
Extracting substrings in Go
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edited Feb 1 '19 at 14:34
answered Sep 7 '12 at 7:39
Den...
How do I convert an integer to string as part of a PostgreSQL query?
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3 Answers
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How do I parse JSON with Objective-C?
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edited May 18 '19 at 3:53
Cœur
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Stretch and scale CSS background
...lly or horizontally so it never tiles/repeats.
That would work for Safari 3 (or later), Chrome, Opera 10+, Firefox 3.6+, and Internet Explorer 9 (or later).
For it to work with lower verions of Internet Explorer, try these CSS:
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.m...
Fixing the order of facets in ggplot
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143
Make your size a factor in your dataframe by:
temp$size_f = factor(temp$size, levels=c('50%','1...
Django admin: How to display a field that is marked as editable=False' in the model?
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How do I import the Django DoesNotExist exception?
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139
You don't need to import it - as you've already correctly written, DoesNotExist is a property o...