flush

The Context I am using the subprocess module to start a process from python. I want to be able to access the output (stdout, stderr) as soon as it is written/buffered. The solution must support Windows 7. I require a solution for Unix systems too but I suspect the Windows case is more difficult to solve. The solution should support Python 2.6. I am currently restricted to Python 2.6 but solutions using later versions of Python are still appreciated. The solution should not use third party libraries. Ideally I would love a solution using the standard library but I am open to suggestions. The

Suppose this C# code: using (MemoryStream stream = new MemoryStream()) { StreamWriter normalWriter = new StreamWriter(stream); BinaryWriter binaryWriter = new BinaryWriter(stream); foreach(...) { binaryWriter.Write(number); normalWriter.WriteLine(name); //<~~ easier to reader afterward. } return MemoryStream.ToArray(); } My questions are: Do I need to use flush inside the loop to preserve order? Is returning MemoryStream.ToArray() legal? I using the using -block as a convention, I'm afraid it will mess things up. Scratch the previous answer - I hadn't noticed that you were using two wrappers

In our J2EE application, we use a EJB-3 stateful bean to allow the front code to create, modify and save persistent entities (managed through JPA-2). It looks something like this: @LocalBean @Stateful @TransactionAttribute(TransactionAttributeType.NEVER) public class MyEntityController implements Serializable { @PersistenceContext(type = PersistenceContextType.EXTENDED) private EntityManager em; private MyEntity current; public void create() { this.current = new MyEntity(); em.persist(this.current); } public void load(Long id) { this.current = em.find(MyEntity.class, id); }

I've been experiencing some strange quirks in Excel while programatically removing modules then reimporting them from files. Basically, I have a module named VersionControl that is supposed to export my files to a predefined folder, and reimport them on demand. This is the code for reimporting (the problem with it is described below): Dim i As Integer Dim ModuleName As String Application.EnableEvents = False With ThisWorkbook.VBProject For i = 1 To .VBComponents.Count If .VBComponents(i).CodeModule.CountOfLines > 0 Then ModuleName = .VBComponents(i).CodeModule.Name If ModuleName <>

典型代码如下： OutputStream os = response.getOutputStream(); os.write("Hello world !".getBytes()); os.flush(); os.close(); 大部分人都知道flush会把缓冲区的内容输出到前端。其实，servlet容器对会flush作了一些特殊的处理。这就跟http协议说起， 一般http通信时会使用 Content-Length 头信息来表示服务器发送的文档内容长度，这是因为我们已经提前知道了文档内容的长度，但 有时候无法提前知道需要传输的文档的长度，这时就要采用分块传输的方式来发送内容，也就是通过我们的http trunked协议 ，即在http header 中设置 Transfer-Encoding:chunked 。 而servlet容器又是怎样判断使用 Content-Length 还是 Transfer-Encoding:chunked。Content-Length 和 Transfer-Encoding:chunked是不会在header中同时存在的。如果servlet中没有调用flush方法，serlvet容器会优先使用Content-Length;要是强硬调用flush,servlet容器无法确定输出内容的的长度，因此会使用Transfer-Encoding:chunked

In the following program I am trying to understand how to read and write files. #include<iostream> #include<fstream> using namespace std; int main() { fstream myfile; string str1; myfile.open("H:/input_file.txt"); if(myfile.is_open()) { myfile<<"test1 writing files"<<" "; myfile>>str1; cout<<str1<<endl; } return 0; } Why I don't get any output on the console even though "test1 writing files" is written into a file? The file will need to be opened for both read and write (I'm sorry, ignore that; fstream is opened for both read & write by default). After writing (and flushing the output), you