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What does [:] mean?

...he type of population. If population is a list, this line will create a shallow copy of the list. For an object of type tuple or a str, it will do nothing (the line will do the same without [:]), and for a (say) NumPy array, it will create a new view to the same data. ...
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How to iterate over the files of a certain directory, in Java? [duplicate]

...hing with child } } else { // Handle the case where dir is not really a directory. // Checking dir.isDirectory() above would not be sufficient // to avoid race conditions with another process that deletes // directories. } ...
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Python debugging tips [closed]

... same effect in the running code ipdb is a version of pdb for IPython. It allows the use of pdb with all the IPython features including tab completion. It is also possible to set pdb to automatically run on an uncaught exception. Pydb was written to be an enhanced version of Pdb. Benefits? ...
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What is the difference between JDK and JRE?

...ke javadoc and jdb). It is capable of creating and compiling programs. Usually, if you only care about running Java programs on computer you will only install the JRE. It's all you need. On the other hand, if you are planning to do some Java programming, you need to install the JDK instead. Somet...
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Is there a way to instantiate objects from a string holding their class name?

...initializing or assigning to it. Have a look at its documentation here. Finally, the use of a raw function pointer is also a bit oldish. Modern C++ code should be decoupled from specific functions / types. You may want to look into Boost.Function to look for a better way. It would look like this the...
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Adding Core Data to existing iPhone project

... All the CoreData header files are imported in App_Prefix.pch, so the CoreData classes will be available throughout your Project, so you don't have to manually import the header in the files you need them. So open up Xcode an...
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Quick easy way to migrate SQLite3 to MySQL? [closed]

...y's built a solid library that can convert between the two. Here a list of ALL the differences in SQL syntax that I know about between the two file formats: The lines starting with: BEGIN TRANSACTION COMMIT sqlite_sequence CREATE UNIQUE INDEX are not used in MySQL SQLite uses CREATE TABLE/INSERT ...
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Python Logging (function name, file name, line number) using a single file

...line number (within the code) where I send a message to the log output. Finally, since this application comprises of many files, I want to create a single log file so that I can better understand the control flow of the application. ...
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OceanBase使用libeasy原理源码分析:服务器端 - 数据库(内核) - 清泛网 - ...

...nection_t(TCP连接)的输出缓冲区链表中 handler_.encode = ObMySQLCallback::encode; // libeasy回调这个函数用于从该连接的输入缓冲区中反序列化出一个符合MySQL协议的包,然后吐给上层使用 handler_.decode = ObMySQLCallback::decode; // 对于每个decode...
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from jquery $.ajax to angular $http

... sure to check AngularJS documentation for more: http://docs.angularjs.org/api/ng.$http share | improve this answer | follow | ...