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Abstract methods in Python [duplicate]
...mething along these lines, using ABC
import abc
class Shape(object):
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def method_to_implement(self, input):
"""Method documentation"""
return
Also read this good tutorial: http://www.doughellmann.com/PyMOTW/abc/
You can...
MySQL: What's the difference between float and double?
...00002 | 1.6900000000 |
This is using MySQL 6.7
Query:
SELECT
float_1 + float_2 as 'float add',
double_1 + double_2 as 'double add',
decimal_1 + decimal_2 as 'decimal add',
float_1 * float_2 as 'float multiply',
double_1 * double_2 as 'double multiply',
decimal_1 * decim...
How does functools partial do what it does?
...g like this (apart from keyword args support etc):
def partial(func, *part_args):
def wrapper(*extra_args):
args = list(part_args)
args.extend(extra_args)
return func(*args)
return wrapper
So, by calling partial(sum2, 4) you create a new function (a callable, to b...
How to add target=“_blank” to JavaScript window.location?
The following sets the target to _blank :
4 Answers
4
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What is the proper way to comment functions in Python?
...odule, function, class, or method definition. Such a docstring becomes the __doc__ special attribute of that object.
All modules should normally have docstrings, and all functions and classes exported by a module should also have docstrings. Public methods (including the __init__ constructor) s...
How to use underscore.js as a template engine?
...ome values HTML escaped
That's all about it.
Simple example:
var tpl = _.template("<h1>Some text: <%= foo %></h1>");
then tpl({foo: "blahblah"}) would be rendered to the string <h1>Some text: blahblah</h1>
...
How to calculate a time difference in C++
...
See std::clock() function.
const clock_t begin_time = clock();
// do something
std::cout << float( clock () - begin_time ) / CLOCKS_PER_SEC;
If you want calculate execution time for self ( not for user ), it is better to do this in clock ticks ( not seco...
How to write to a file, using the logging Python module?
...
make sure this is not under if __name__ == '__main__': if running on apache
– Rami Alloush
Apr 14 '19 at 19:08
...
Django set field value after a form is initialized
...value after the form was submitted, you can use something like:
if form.is_valid():
form.cleaned_data['Email'] = GetEmailString()
Check the referenced docs above for more on using cleaned_data
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Should I use 'has_key()' or 'in' on Python dicts?
...
in is definitely more pythonic.
In fact has_key() was removed in Python 3.x.
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