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Why is Hibernate Open Session in View considered a bad practice?
...ree important points:
each lazy initialization will get you a query m>me m>aning each entity will need N + 1 queries, where N is the number of lazy associations. If your screen presents tabular data, reading Hibernate’s log is a big hint that you do not do as you should
this completely defeats...
Git for beginners: The definitive practical guide
...rent directory.
To make a new project, run git init with an additional argum>me m>nt (the nam>me m> of the directory to be created):
git init project002
(This is equivalent to: mkdir project002 && cd project002 && git init)
To check if the current current path is within a git repository, sim...
Python error “ImportError: No module nam>me m>d”
...
Based on your comm>me m>nts to orip's post, I guess this is what happened:
You edited __init__.py on windows.
The windows editor added som>me m>thing non-printing, perhaps a carriage-return (end-of-line in Windows is CR/LF; in unix it is LF only), or...
Install tkinter for Python
...
@BryanOakley: Certainly. The poster seem>me m>d to have an apt-based Linux box, thus the answer. This looked like a narrow problem. I didn't expect this answer to get so many upvotes.
– 9000
Dec 11 '14 at 14:51
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VC IP地址控件（CIPAddressCtrl ）的自绘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...址控件（CIPAddressCtrl ）的自绘先看效果图：代码：.h#pragma once class CMyIPCtrl : public CIPAddressCtrl{DECLARE_DYNAMIC(CMyIPCtrl)public:CMyIPCtrl();virtua...先看效果图：
代码：
.h
#pragma once
class CMyIPCtrl : public CIPAddressCtrl
{
DECLARE_DYNAMIC(CMyIPC...
download file using an ajax request
...e HTML5 scene is the download attribute. It's supported in Firefox and Chrom>me m>, and soon to com>me m> to IE11. Depending on your needs, you could use it instead of an AJAX request (or using window.location) so long as the file you want to download is on the sam>me m> origin as your site.
You could always make...
How do I make python wait for a pressed key?
...ves you access to a number of functions in the Microsoft Visual C/C++ Runtim>me m> Library (MSVCRT)):
import msvcrt as m
def wait():
m.getch()
This should wait for a key press.
Additional info:
in Python 3 raw_input() does not exist
In Python 2 input(prompt) is equivalent to eval(raw_input(prom...
Simpler way to create dictionary of separate variables?
I would like to be able to get the nam>me m> of a variable as a string but I don't know if Python has that much introspection capabilities. Som>me m>thing like:
...
What happens to C# Dictionary lookup if the key does not exist?
...
add a comm>me m>nt
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Styling HTML email for Gmail
...is currently rolling out support for the style tag in the head, as well as m>me m>dia queries. If Gmail is your only concern, you're safe to use classes like a modern developer!
For reference, you can check the official gmail CSS docs.
As a side note, Gmail was the only major client that didn't suppor...