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Make virtualenv inherit specific packages from your global site-packages
...But for some reason I do not know there was a package that was beeing used from the global system. Using pip install -I for the package from inside the virtualenv didn't work. I finally ended up uninstalling temporarily the package both from the virtualenv and global system, Then I could install it ...
Ignore files that have already been committed to a Git repository [duplicate]
...ialized to your repository, i.e., stop tracking the file but not delete it from your system use: git rm --cached filename
To untrack every file that is now in your .gitignore:
First commit any outstanding code changes, and then, run this command:
git rm -r --cached .
This removes any changed f...
Find where java class is loaded from
...rogrammaticly find out where the java classloader actually loads the class from?
11 Answers
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Handling JSON Post Request in Go
...
I don't think you need to defer req.Body.Close() From the docs: "The Server will close the request body. The ServeHTTP Handler does not need to." Also to answer @thisisnotabus, from the docs: "For server requests the Request Body is always non-nil but will return EOF immedi...
Removing first x characters from string?
How might one remove the first x characters from a string? For example, if one had a string lipsum , how would they remove the first 3 characters and get a result of sum ?
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Event system in Python
...12
py-notify 0.3.1: 2008
There's more
That's a lot of libraries to choose from, using very different terminology (events, signals, handlers, method dispatch, hooks, ...).
I'm trying to keep an overview of the above packages, plus the techniques mentioned in the answers here.
First, some terminology...
Why use getters and setters/accessors?
...erty using an alternative representation.
Insulating your public interface from change - allowing the public interface to remain constant while the implementation changes without affecting existing consumers.
Controlling the lifetime and memory management (disposal) semantics of the property - parti...
Java8: Why is it forbidden to define a default method for a method from java.lang.Object
...concludes that to get reference equality, all he need do is inherit equals from Object. Then, next week, the library maintainer for Bar "helpfully" adds a default equals implementation. Ooops! Now the semantics of Foo have been broken by an interface in another maintenance domain "helpfully" addi...
How do I measure execution time of a command on the Windows command line?
...o use for this timing run
-r specifies the keyname to remove from the database. If
keyname is followed by a comma and a number then it will
remove the slowest (positive number) or fastest (negative)
times for that keyname.
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Creating a singleton in Python
...lass itself is a a function, not a class, so you cannot call class methods from it."
Python 2 and 3 Compatible Version
Writing something that works in both Python2 and 3 requires using a slightly more complicated scheme. Since metaclasses are usually subclasses of type type, it's possible to use one...