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Why 0 is true but false is 1 in the shell?
The above will output 1 , which is contradictory with all other programming languages I know.
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How can I find the method that called the current method?
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...t_index().drop_duplicates(subset='index', keep='first').set_index('index')
1000 loops, best of 3: 1.54 ms per loop
>>> %timeit df3.groupby(df3.index).first()
1000 loops, best of 3: 580 µs per loop
>>> %timeit df3[~df3.index.duplicated(keep='first')]
1000 loops, best of 3: 307 µ...
Is it possible to apply CSS to half of a character?
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“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
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ValueError: setting an array element with a sequence
...t isn't shaped like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([[1,2], [2, [3, 4]]])
will yield this error message, because the shape of the input list isn't a (generalised) "box" that can be turned into a multidimensional array. So probably UnFilte...
Is Java Regex Thread Safe?
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133
Yes, from the Java API documentation for the Pattern class
Instances of this (Pattern) class...
Check substring exists in a string in C
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How do you generate dynamic (parameterized) unit tests in python?
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This is called "parametrization".
There are several tools that support this approach. E.g.:
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dynamically add and remove view to viewpager
...ject object)
{
int index = views.indexOf (object);
if (index == -1)
return POSITION_NONE;
else
return index;
}
//-----------------------------------------------------------------------------
// Used by ViewPager. Called when ViewPager needs a page to display; it is ...