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What is the python keyword “with” used for? [duplicate]
...ython the with keyword is used when working with unmanaged resources (like file streams). It is similar to the using statement in VB.NET and C#. It allows you to ensure that a resource is "cleaned up" when the code that uses it finishes running, even if exceptions are thrown. It provides 'syntactic ...
config.assets.compile=true in Rails production, why not?
...ion.
When you have compile on, this is what happens:
Every request for a file in /assets is passed to Sprockets. On the first request for each and every asset it is compiled and cached in whatever Rails is using for cache (usually the filesystem).
On subsequent requests Sprockets receives the req...
Check whether a path is valid
... to validate if a given path is valid.
(Note: I do not want to check if a file is existing! I only want to proof the validity of the path - So if a file could possibly exists at the location) .
...
sed command with -i option failing on Mac, but works on Linux
...i option you need to provide an extension for your backups.
If you have:
File1.txt
File2.cfg
The command (note the lack of space between -i and '' and the -e to make it work on new versions of Mac and on GNU):
sed -i'.original' -e 's/old_link/new_link/g' *
Create 2 backup files like:
File1.t...
Using Python's os.path, how do I go up one directory?
...
os.path.abspath(os.path.join(os.path.dirname( __file__ ), '..', 'templates'))
As far as where the templates folder should go, I don't know since Django 1.4 just came out and I haven't looked at it yet. You should probably ask another question on SE to solve that issue.
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Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
...
Your gdb answer did not work with tail -f file, and it did not work with a test program in c compiled with gcc -ggdb that does a printf every second. Also cont makes it impossible to run more gdb commands, the command would be detach, then quit.
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Does Eclipse have line-wrap
I'm editing an XML file with the Eclipse IDE and need to input paragraphs of text. It doesn't seem that eclipse has a line-wrap feature though. Anyone knows if it does or if there's a plugin for that?
...
Serialize an object to XML
...n using the System.Xml namespace.
/// <summary>
/// Saves to an xml file
/// </summary>
/// <param name="FileName">File path of the new xml file</param>
public void Save(string FileName)
{
using (var writer = new System.IO.StreamWriter(FileName))
{
var serial...
Where is svcutil.exe in Windows 7?
For my WCF, I need to generate configuration file for my client application to specify things such as binding of service, the address of the service and the contract.
...
sed or awk: delete n lines following a pattern
...lar tool - awk for example)? What I want to do is match certain lines in a file, and delete the next n lines before proceeding, and I want to do that as part of a pipeline.
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