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Is it OK to leave a channel open?
... Go channel open forever and never close it. When the channel is no longer used, it will be garbage collected.
Note that it is only necessary to close a channel if the receiver is
looking for a close. Closing the channel is a control signal on the
channel indicating that no more data follow...
String formatting in Python 3
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Here are the docs about the "new" format syntax. An example would be:
"({:d} goals, ${:d})".format(self.goals, self.penalties)
If both goals and penalties are integers (i.e. their default format is ok), it could be shortened to:
"({} goals, $...
Python “raise from” usage
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The difference is that when you use from, the __cause__ attribute is set and the message states that the exception was directly caused by. If you omit the from then no __cause__ is set, but the __context__ attribute may be set as well, and the traceback t...
Do regular expressions from the re module support word boundaries (\b)?
While trying to learn a little more about regular expressions, a tutorial suggested that you can use the \b to match a word boundary. However, the following snippet in the Python interpreter does not work as expected:
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Class method decorator with self arguments?
How do I pass a class field to a decorator on a class method as an argument? What I want to do is something like:
5 Answer...
Size of character ('a') in C/C++
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In C, the type of a character constant like 'a' is actually an int, with size of 4 (or some other implementation-dependent value). In C++, the type is char, with size of 1. This is one of many small differences between the two languages.
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vim command to restructure/force text to 80 columns
I know there are ways to automatically set the width of text in vim using set textwidth (like Vim 80 column layout concerns ). What I am looking for is something similar to = (the indent line command) but to wrap to 80. The use case is sometimes you edit text with textwidth and after joining li...
What does @synchronized() do as a singleton method in objective C?
I just created a singleton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning.
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request exceeds the configured maxQueryStringLength when using [Authorize]
I have a MVC3 site in C#, I have a particular view being fed query parameters from a JavaScript function, the function redirects to the site via
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req.query and req.param in ExpressJS
Suppose a client sends say Android (Key,value) pair in the request ........ which one to use ?
4 Answers
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