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How to check if an object is a generator object in python?
...s and generators (generator function's result):
>>> def generator_function():
... yield 1
... yield 2
...
>>> import inspect
>>> inspect.isgeneratorfunction(generator_function)
True
calling generator_function won't yield normal result, it even won't execute any ...
Hidden Features of Java
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So you interview based on Java trivia rather than on aptitude to solve problems and think through designs. I'll make sure I never interview with your company. :)
– Javid Jamae
Aug 24 '10 at 20:35
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Disable spell-checking on HTML textfields
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Format floats with standard json module
...ckage). E.g., this code:
import json
from json import encoder
encoder.FLOAT_REPR = lambda o: format(o, '.2f')
print(json.dumps(23.67))
print(json.dumps([23.67, 23.97, 23.87]))
emits:
23.67
[23.67, 23.97, 23.87]
as you desire. Obviously, there should be an architected way to override FLOAT_REP...
How to exit from Python without traceback?
...Shutdown requested...exiting"
except Exception:
traceback.print_exc(file=sys.stdout)
sys.exit(0)
if __name__ == "__main__":
main()
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What does the variable $this mean in PHP?
...P.html
Example:
<?php
class Person {
public $name;
function __construct( $name ) {
$this->name = $name;
}
};
$jack = new Person('Jack');
echo $jack->name;
This stores the 'Jack' string as a property of the object created.
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Regular expression to find URLs within a string
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This is the one I use
(http|ftp|https)://([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-])?
Works for me, should work for you too.
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impro...
Alter Table Add Column Syntax
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In a relational database, you should never have a need for the ordinality of the columns so if you are trying to neatly order the columns, the question is why? If column ordinality was so important, why isn't there a trivial function to swap or ...
How to append contents of multiple files into one file
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@radical7 Thanks. Actually, my files are like foo_1, foo_2, foo_3. I tried to modify your code as - cat "$filename_"{1,2,3}".txt" , but it did not work.
– Steam
Aug 2 '13 at 0:09
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Inline instantiation of a constant List
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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