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How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g
...n 2 manual:
CPython implementation detail: Objects of different types em>x m>cept numbers are ordered by their type names; objects of the same types that don’t support proper comparison are ordered by their address.
When you order two strings or two numeric types the ordering is done in the em>x m>pec...
“Private” (implementation) class in Python
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Use a single underscore prefim>x m>:
class _Internal:
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This is the official Python convention for 'internal' symbols; "from module import *" does not import underscore-prefim>x m>ed objects.
Edit: Reference to the single underscore convention
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How do you run your own code alongside Tkinter's event loop?
...t opencv and tkinter to work together properly and cleanly close when the [m>X m>] button was clicked, this along with win32gui.FindWindow(None, 'window title') did the trick! I'm such a noob ;-)
– Jm>x m>Am>x m>Mm>x m>Im>x m>N
Oct 16 '16 at 14:48
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使用CSplitterWnd实现拆分窗口（多视图显示） - C/C++ - 清泛网 - 专注C/C++及内核技术
...int nRows, int nCols, DWORD dwStyle = WS_CHILD | WS_VISIBLE, UINT nID = AFm>X m>_IDW_PANE_FIRST );
函数有5个参数，意义如下:
● pParentWnd:切分窗口的父窗口指针
● nRows:水平方向分隔窗口的数目
● nCols:垂直方向分隔窗口的数目
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What's the difference between eval, em>x m>ec, and compile?
...on code, and come across the eval() and compile() functions, and the em>x m>ec statement.
3 Answers
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How to write a simple Html.DropDownListFor()?
...like to write a very simple dropdown list which gives static options. For em>x m>ample I'd like to provide choices between "Red", "Blue", and "Green".
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Equals(=) vs. LIKE
...h can have important effects on the result of the comparison.
Motivating Em>x m>ample
Let's first identify an em>x m>ample where these operators produce obviously different results. Allow me to quote from the MySQL manual:
Per the SQL standard, LIKE performs matching on a per-character basis, thus it ca...
Java List.contains(Object with field value equal to m>x m>)
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Then, the second em>x m>ample should be public boolean. Also, you might want to use Objects.equals() in case o.getName() can be null.
– Eric Jablow
Sep 17 '13 at 14:28
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combinations between two lists?
...2. In python:
import itertools
list1=['a','b','c']
list2=[1,2]
[list(zip(m>x m>,list2)) for m>x m> in itertools.permutations(list1,len(list2))]
Returns
[[('a', 1), ('b', 2)], [('a', 1), ('c', 2)], [('b', 1), ('a', 2)], [('b', 1), ('c', 2)], [('c', 1), ('a', 2)], [('c', 1), ('b', 2)]]
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When does invoking a member function on a null instance result in undefined behavior?
...behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never em>x m>plicitly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to a...