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Select by partial string from a pandas DataFrame
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Based on github issue #620, it looks like you'll soon be able to do the following:
df[df['A'].str.contains("hello")]
Update: vectorized string methods (i.e., Series.str) are available in pandas 0.8.1 and up.
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Getting image dimensions without reading the entire file
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106
Your best bet as always is to find a well tested library. However, you said that is difficult, ...
How do I determine the dependencies of a .NET application?
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answered Oct 22 '08 at 23:41
Orion EdwardsOrion Edwards
110k5858 gold badges215215 silver badges300300 bronze badges
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Make Iframe to fit 100% of container's remaining height
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Update in 2019
TL;DR: Today the best option is the last one in this answer - flexbox. Everything supports it nicely and has for years. Go for that and don't look back. The rest of this answer is left for historical reasons.
The tric...
String formatting in Python 3
...ing a single argument twice (as @Burhan Khalid noted in the comments):
"({0.goals} goals, ${0.penalties})".format(self)
Explaining:
{} means just the next positional argument, with default format;
{0} means the argument with index 0, with default format;
{:d} is the next positional argument, wi...
C# Double - ToString() formatting with two decimal places but no rounding
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210
I use the following:
double x = Math.Truncate(myDoubleValue * 100) / 100;
For instance:
If t...
Font Awesome not working, icons showing as squares
...;v=3.2.1')
– Braulio
Sep 16 '13 at 10:29
1
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Can PostgreSQL index array columns?
... CREATE TABLE "Test"("Column1" int[]);
INSERT INTO "Test" VALUES ('{10, 15, 20}');
INSERT INTO "Test" VALUES ('{10, 20, 30}');
CREATE INDEX idx_test on "Test" USING GIN ("Column1");
-- To enforce index usage because we have only 2 records for this test...
SET enable_seqscan ...
stash@{1} is ambiguous?
I'm trying to get info about my stash, but git is telling me that stash@{0} and stash@{1} are ambiguous. git stash list works fine, and .git/logs/refs/stash seems to have the appropriate content (not that I'm an expert on git internals).
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How does zip(*[iter(s)]*n) work in Python?
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answered Feb 9 '10 at 23:15
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
668k127127 gold badges11911191 silver badges12501250 bronze badges
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