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What is the purpose of the single underscore “_” variable in Python?
...iberately ignored (Conceptually, it is being discarded.), as in code like:
label, has_label, _ = text.partition(':').
As part of a function definition (using either def or lambda), where
the signature is fixed (e.g. by a callback or parent class API), but
this particular function implementation does...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...数据库中的数据来进行认证，以此来判定收件人所在的域是否为自己所负责的域，并且判断是否为其中继邮件。
需求：为公司建立邮件服务器，公司全部员工使用统一的域名，内网IP为：192.168.0.115
操作系统：RHEL5
所用...
How can I easily view the contents of a datatable or dataview in the immediate window
... " ) + msg + "\n" );
break;
//2 -- output to the error label in the master
case 2:
string previousMsg = System.Convert.ToString (System.Web.HttpContext.Current.Session["global.DebugMsg"]);
System.Web.HttpContext.Current.Session["global.DebugMsg"] ...
TypeError: got multiple values for argument
...is function changed between 0.20 and 0.22:
0.20: DataFrame.set_axis(axis, labels)
0.22: DataFrame.set_axis(labels, axis=0, inplace=None)
Using the commonly found examples for set_axis results in this confusing error, since when you call:
df.set_axis(['a', 'b', 'c'], axis=1)
prior to 0.22, ['a'...
Does a break statement break from a switch/select?
... innermost "for",
"switch" or "select" statement.
BreakStmt = "break" [ Label ] .
If there is a label, it must be that of an enclosing "for", "switch"
or "select" statement, and that is the one whose execution terminates
(§For statements, §Switch statements, §Select statements).
L:
...
Python: Continuing to next iteration in outer loop
...
In other languages you can label the loop and break from the labelled loop. Python Enhancement Proposal (PEP) 3136 suggested adding these to Python but Guido rejected it:
However, I'm rejecting it on the basis that code so complicated to
require...
Changing Locale within the app itself
...ediately, I think you still must reset strings manually. (e.g reset button label or recreate menu).
– emeraldhieu
Oct 11 '11 at 17:59
...
Best way to test for a variable's existence in PHP; isset() is clearly broken
...use an associative array instead.
A variable name, fundamentally, is the label given to a value by the programmer; if you're determining it at run-time, it's not really a label but a key in some key-value store. More practically, by not using an array, you are losing the ability to count, iterate,...
How to put a unicode character in XAML?
...at you can do zalgo for all you care
Bit of code that is relevant:
<Label Grid.Column="0" Grid.Row="3" FontWeight="ExtraBlack">STAGE:M&#x363;&#x36d;&#x363;&#x33e; V&#x363;&#x365;&#x36d;&#x35b;&#x364;&#x36e;&#x365;&#x368;&#x365;&#x367...
What is a domain specific language? Anybody using it? And in what way?
...ructures or menus, column A is the level, other columns are icons, colors, labels and such (EXCEL is an editable CSV).
I found that HTML did not really solve the problem of page layout, so I got rid of it and defined a DSL that does fit. I defined 6 regions on the page, HEADER, BODY, FOOTER, LEFT/R...