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What is the fastest substring search algorithm?
...ute force may win.
Edit:
A different algorithm might be best for finding base pairs, english phrases, or single words. If there were one best algorithm for all inputs, it would have been publicized.
Think about the following little table. Each question mark might have a different best search al...
How can I get dictionary key as variable directly in Python (not by searching from value)?
... this are not turning up anything other than how to get a dictionary's key based on its value which I would prefer not to use as I simply want the text/name of the key and am worried that searching by value may end up returning 2 or more keys if the dictionary has a lot of entries... what I am tryin...
Getting attributes of a class
... be dealt with in a number of ways, the easiest of which is just to filter based on name.
>>> attributes = inspect.getmembers(MyClass, lambda a:not(inspect.isroutine(a)))
>>> [a for a in attributes if not(a[0].startswith('__') and a[0].endswith('__'))]
[('a', '34'), ('b', '12')]
...
Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
...个在基类构造函数中间接调用纯虚函数的例子：
class Base
{
public:
Base(){callVirtual();}
void callVirtual(){virtualFunc();}
virtual void virtualFunc() = 0;
};
class Derived: public Base
{
public:
virtual void virtualFunc(){}
};
Derived d; //构造过程中调...
Possible to make labels appear when hovering over a point in matplotlib?
...
From http://matplotlib.sourceforge.net/examples/event_handling/pick_event_demo.html :
from matplotlib.pyplot import figure, show
import numpy as npy
from numpy.random import rand
if 1: # picking on a scatter plot (matplotlib.collections.RegularPolyCollection)
x, y, c, s = rand(4, 100)
d...
What does “%.*s” mean in printf?
...ll terminator, for example a string which is input from any stream or file based source. Which is far more often the use case I have encountered, than merely print prettines.
– Conrad B
Oct 24 '18 at 8:04
...
How can I remove the first line of a text file using bash/sed script?
...n't try to delete the first line but maintains a persistent (probably file-based) offset into the file A so that, next time it runs, it could seek to that offset, process the line there, and update the offset.
Then, at a quiet time (midnight?), it could do special processing of file A to delete all...
What is a clean, pythonic way to have multiple constructors in Python?
...w__.
This could be used if the type of initialization cannot be selected based on the type of the constructor argument, and the constructors do not share code.
Example:
class MyClass(set):
def __init__(self, filename):
self._value = load_from_file(filename)
@classmethod
de...
git-svn: how do I create a new svn branch via git?
...remotes/auth_bug)
The best part of it, now you can create a local branch based on your remote branch like so:
git checkout -b local/auth_bug auth_bug
Which means "check out and create local branch named auth_bug and make it follow the remote branch (last parameter) auth_bug
Test that your loca...
Setting the selected value on a Django forms.ChoiceField
...args, **kwargs):
super(MyForm, self).__init__(*args, **kwargs)
self.base_fields['MyChoiceField'].initial = initial_value
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