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How unique is UUID?
How safe is it to use UUID to uniquely identify something (I'm using it for files uploaded to the server)? As I understand it, it is based off random numbers. However, it seems to me that given enough time, it would eventually repeat it self, just by pure chance. Is there a better system or a patter...
What text editor is available in Heroku bash shell? [closed]
...no. Also, even if you could (you can with a hack), the changes you make inside the dyno would not get persisted inside your slug. i.e. any changes you made would be lost when your app is restarted (every 24 hours).
– Naaman Newbold
Sep 3 '14 at 2:26
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How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
...answered Jul 12 '10 at 15:08
David EspartDavid Espart
10.4k66 gold badges3333 silver badges4848 bronze badges
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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...库。
CURL_GLOBAL_NOTHING //没有额外的初始化。
2）void curl_global_cleanup(void);
描述：在结束libcurl使用的时候，用来对curl_global_init做的工作清理。类似于close的函数。
3.char *curl_version( );
描述: 打印当前libcurl库的版本。
4）CURL ...
Matplotlib (pyplot) savefig outputs blank image
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Platform independent size_t Format specifiers in c?
...omething but still this answer is just wrong. Ah, I think I understand the idea here in 'portable'. It must be saying that it works for both 32-bit and 64-bit. But of course it would.
– Pryftan
Dec 3 '19 at 15:00
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Difference between setUp() and setUpBeforeClass()
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Finally, use the "AfterClass" annotated method to clean up any setup you did in the "BeforeClass" annotated method (unless their self destruction is good enough).
"Before" & "After" are for unit test specific initialization. I typically use these methods to initialize / re-initialize the mocks...
Importing a CSV file into a sqlite3 database table using Python
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In case you had the same problems I did: Make sure to change col1 and col2 to the column headers in the csv file. And close the connection to the database by calling con.close() at the end.
– Jonas
Aug 8 '16 at 21:31
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How to apply a style to an embedded SVG?
...t = "svg { fill: #fff }"; // add whatever you need here
svgDoc.getElementById("where-to-insert").appendChild(styleElement);
It's also possible to insert a <link> element to reference an external stylesheet:
var svgDoc = yourObjectElement.contentDocument;
var linkElm = svgDoc.createElementNS...
How do I set the maximum line length in PyCharm?
...uickly becomes unreadable and unmaintainable. Let's quote PEP-8: A style guide is about consistency. Consistency with this style guide is important. Consistency within a project is more important. Consistency within one module or function is most important. But most importantly: know when to be inco...