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Determine if Python is running inside virtualenv
...nside a virtual environment, sys.prefix points to the virtual environment, and sys.base_prefix is the prefix of the system Python the virtualenv was created from.
The above always works for Python 3 stdlib venv and for recent virtualenv (since version 20). Older versions of virtualenv used sys.real_...
What are fail-safe & fail-fast Iterators in Java
There are two types of iterators in Java: fail-safe and fail-fast.
4 Answers
4
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What is the difference between String.Empty and “” (empty string)?
In .NET, what is the difference between String.Empty and "" , and are they interchangable, or is there some underlying reference or Localization issues around equality that String.Empty will ensure are not a problem?
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Converting user input string to regular expression
I am designing a regular expression tester in HTML and JavaScript. The user will enter a regex, a string, and choose the function they want to test with (e.g. search, match, replace, etc.) via radio button and the program will display the results when that function is run with the specified argument...
BeautifulSoup Grab Visible Webpage Text
... visible text on a webpage. For instance, this webpage is my test case. And I mainly want to just get the body text (article) and maybe even a few tab names here and there. I have tried the suggestion in this SO question that returns lots of <script> tags and html comments which I don't...
Graphviz: How to go from .dot to a graph?
...ps
If you want to use the dot renderer. There are alternatives like neato and twopi. If graphiz isn't in your path, figure out where it is installed and run it from there.
You can change the output format by varying the value after -T and choosing an appropriate filename extension after -o.
If yo...
ExecutorService that interrupts tasks after a timeout
...Service for this. First you would submit it only once to begin immediately and retain the future that is created. After that you can submit a new task that would cancel the retained future after some period of time.
ScheduledExecutorService executor = Executors.newScheduledThreadPool(2);
final F...
Django Cookies, how can I set them?
...he visitor chooses. e.g: User enters in 55812 as the zip. I know what
city and area lat/long. that is and give them their content pertinent
to that area. My question is how can I store this in a cookie so that
when they return they are not required to always enter their zip code?
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Limit text length to n lines using CSS
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There's a way to do it using unofficial line-clamp syntax, and starting with Firefox 68 it works in all major browsers.
body {
margin: 20px;
}
.text {
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: 2; /* number of lin...
Spring classpath prefix difference
...es under conf folders in all your jars on the classpath will be picked up and joined into one big application context.
In contrast, classpath:conf/appContext.xml will load only one such file... the first one found on your classpath.
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