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In Python, if I return inside a “with” block, will the file still close?
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@davidA After the file is closed, the references are still accessible; however, any attempts to use the references to pull/push data to/from the file will give: ValueError: I/O operation on closed file..
– RWDJ
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what is the use of xsi:schemaLocation?
...alues and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from inside its own JAR files.
If you omit the schemaLocation, then the XML parser won't know where to get the schema in order to validate the conf...
Getting the count of unique values in a column in bash
I have tab delimited files with several columns. I want to count the frequency of occurrence of the different values in a column for all the files in a folder and sort them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
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To ARC or not to ARC? What are the pros and cons? [closed]
...S version restrictions). For non-ARC code, you can pass -fno-objc-arc on a file-by-file basis. Xcode unfortunately makes this much harder than it should be to do in practice. You should probably move non-ARC code into a separate xcodeproj to simplify this.
In conclusion, switch to ARC as soon as yo...
Comments in Markdown
What is the syntax for storing a comment in a markdown file, e.g. a CVS $Id$ comment at the top of the file? I found nothing on the markdown project .
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Xcode Project vs. Xcode Workspace - Differences
...e build settings, such as compiler and linker flags, and they define which files (source code and resources) actually belong to a product. When you build/run, you always select one specific target.
It is likely that you have a few targets that share code and resources. These different targets can b...
Intellij IDEA, format all code in a project
...o reformat all the code in a particular project without going through each file? I've found the option to tidy / optimise imports on code before committing it to subversion which is great, but it only seems to apply to files that have otherwise been modified (which is sensible in the majority of cas...
Perl build, unit testing, code coverage: A complete working example
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|----------> t
In the "lib" directory, create a text file named "HelloPerlBuildWorld.pm". This file is your Perl module that you will be building and testing. Paste the following content into this file:
use strict;
use warnings;
package HelloPerlBuildWorld;
$HelloPerlBuildW...
Is #pragma once part of the C++11 standard?
...ability concerns are limited, and
you can be sure that all of your include files are always on a local disk.
It was considered for standardization, but rejected because it
cannot be implemented reliably. (The problems occur when you
have files accessible through several different remote mounts.)
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Where should I put tags in HTML markup?
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The parser encounters a <script> tag referencing an external script file.
The browser requests the script file. Meanwhile, the parser blocks and stops parsing the other HTML on your page.
After some time the script is downloaded and subsequently executed.
The parser continues parsing the rest...