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Split data frame string column into multiple columns
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answered Dec 4 '10 at 4:21
hadleyhadley
91.2k2626 gold badges167167 silver badges234234 bronze badges
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How to build & install GLFW 3 and use it in a Linux project
...v libglu1-mesa-dev
– Lenar Hoyt
Oct 10 '14 at 15:35
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show 12 more comments
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How do I resolve a HTTP 414 “Request URI too long” error?
... is in /etc/apache2/apache2.conf. If not, add a new line (LimitRequestLine 10000) under AccessFileName .htaccess.
However, note that if you're actually running into this limit, you are probably abusing GET to begin with. You should use POST to transmit this sort of data -- especially since you eve...
What does “#define _GNU_SOURCE” imply?
...ith
the value 200809L (200112L in glibc versions before 2.10;
199506L in glibc versions before 2.5; 199309L in glibc ver‐
sions before 2.1) and _XOPEN_SOURCE with the value 700 (600
in glibc versions before 2.10; 500 in glibc vers...
Is there a __CLASS__ macro in C++?
...reprocessor stage! :(
– k3a
Aug 23 '10 at 11:51
2
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Reference — What does this symbol mean in PHP?
..., then the increment/decrement operation is done.
For example:
$apples = 10;
for ($i = 0; $i < 10; ++$i) {
echo 'I have ' . $apples-- . " apples. I just ate one.\n";
}
Live example
In the case above ++$i is used, since it is faster. $i++ would have the same results.
Pre-increment is a l...
What does if __name__ == “__main__”: do?
...re functionB")
def functionB():
print("Function B {}".format(math.sqrt(100)))
print("before __name__ guard")
if __name__ == '__main__':
functionA()
functionB()
print("after __name__ guard")
Special Variables
When the Python interpreter reads a source file, it first defines a few specia...
Accessing class variables from a list comprehension in the class definition
...lowing will fail:
class A:
a = 42
b = list(a + i for i in range(10))
So, to summarize: you cannot access the class scope from functions, list comprehensions or generator expressions enclosed in that scope; they act as if that scope does not exist. In Python 2, list comprehensions were ...
how to change any data type into a string in python
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10 Answers
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rails 3 validation on uniqueness on multiple attributes
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answered Jul 18 '10 at 15:55
Christian LescuyerChristian Lescuyer
17.3k55 gold badges4545 silver badges4343 bronze badges
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