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Installing older version of R package
...are not yet reflected in Rpy2 (for example, see this post (Edit: Link is now dead)).
7 Answers
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List all the modules that are part of a python package?
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@chrisleague I was using ur method with python 2.7, but now I need to move on with python 3.4, so you know that in python 3 pkutil.iter_modules yields (module_finder, name, ispkg) instead of (module_loader, name, ispkg). What can I do to make it work like the previous one ?
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Why can't I use the 'await' operator within the body of a lock statement?
...lock(), that in a synchronous world would execute on separate threads. But now with await (if allowed I mean) you could have two tasks executing within the lock block because the thread was reused. Hilarity ensues. Or did I misunderstand something?
– Gareth Wilson
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What is the difference between .*? and .* regular expressions?
...come to this:
eeeAiiZuuuuAoooZeeee
\__________/
A.* matched, Z can now match
Now Z can match, so the overall pattern matches:
eeeAiiZuuuuAoooZeeee
\___________/
A.*Z matched
By contrast, the reluctant repetition in A.*?Z first matches as few . as possible, and then taking more . ...
How to access session variables from any class in ASP.NET?
...ime myDate = MySession.Current.MyDate;
MySession.Current.MyDate = DateTime.Now;
This approach has several advantages:
it saves you from a lot of type-casting
you don't have to use hard-coded session keys throughout your application (e.g. Session["loginId"]
you can document your session items by ...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...man ten Brugge <hermantenbrugge@home.nl>:
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* - Add 64 bit support. It now runs on x86_64 and solaris64.
* - I also tested this on vxworks/32and solaris/32 and i386/32 processors.
* - Remove assembly code. I could not measure any performance difference
* on my core2 processor. This also...
How do I reference an existing branch from an issue in GitHub?
... I contacted Github's support and they told me it is not possible right now.
– Nerian
Nov 4 '11 at 22:38
5
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What are “named tuples” in Python?
... is the answer you always find, it might be worth mentioning that there is now also typing.NamedTuple which allows for type hints and is especially convenient for subclassing.
– DerWeh
Dec 23 '19 at 15:55
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把数据保存成 CSV 文件并分享出去 · App Inventor 2 中文网
..._记一笔.Click() {
var 日期 = 计时器1.FormatDateTime(计时器1.Now(), "yyyy-MM-dd")
listAdd(账目, [日期, 文本输入框_项目.Text, 文本输入框_金额.Text])
微数据库1.StoreValue("账目", 账目)
文本输入框_项目.Text = ""
文本输入框_金额.Text = ""
标...
What is the most efficient/elegant way to parse a flat table into a tree?
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Now that MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL...