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What does 'wb' mean in this code, using Python?
... when you specify text mode with wt), however, Python will encode the text based on the default text encoding. Additionally, Python will convert line endings (\n) to whatever the platform-specific line ending is, which would corrupt a binary file like an exe or png file.
Text mode should therefore ...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...usted programs both interactively and in automatic mode. It has a ptrace()-based backend which allows its use on a Linux system without special privileges, as well as a far faster and more poweful backend which requires patching the kernel.
It is also possible to create a sandbox on Unix-like syste...
How to get a time zone from a location using latitude and longitude coordinates?
...nt libraries for just about everything
Self-hosted web services
geo2tz - based on Timezone lookup, available via Docker image
Other Ideas
Find the nearest city with an R-Tree
Find the nearest city with MySQL
Please update this list if you know of any others
Also, note that the nearest-city appr...
Import SQL dump into PostgreSQL database
... switching hosts and the old one provided a SQL dump of the PostgreSQL database of our site.
15 Answers
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What is difference between sjlj vs dwarf vs seh?
...stack unwinding tables have to be
included in th executables.
A method based on setjmp/longjmp (SJLJ). SJLJ-based EH is much slower than DW2 EH (penalising even normal execution when no
exceptions are thrown), but can work across code that has not been
compiled with GCC or that does not have...
程序员之网络安全系列（六）：动态密码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...录密码的烦恼。
有两种方法，生成动态密码：
Event-based OTP (EOTP)
基于事件同步的令牌，其原理是通过某一特定的事件次序及相同的种子值作为输入，在DES算法中运算出一致的密码，其运算机理决定了其整个工作流程同时钟...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...k, with the C# implementation of Android well and truly trouncing the Java-based Dalvik.
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How to get the currently logged in user's user id in Django?
...checks for expired sessions and then figures out which user they belong to based on the decoded _auth_user_id attribute:
def ajax_find_logged_in_users(request, client_url):
"""
Figure out which users are authenticated in the system or not.
Is a logical way to check if a user has an expi...
Consequences of using graft in Mercurial
...ges. It will start with this merge:
M = three_way_merge(local=D, other=F, base=E)
If we write +d for the delta between the states C and D, then we start with:
+d +e +f
---- C ---- D ---- E ---- F ----
Turn the graph 90 degrees clockwise and the above three-way merge looks like ...
Search code inside a Github project
...
Update January 2013: a brand new search has arrived!, based on elasticsearch.org:
A search for stat within the ruby repo will be expressed as stat repo:ruby/ruby, and will now just workTM.
(the repo name is not case sensitive: test repo:wordpress/wordpress returns the same as t...