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Flask SQLAlchemy query, specify column names
How do I specify the column that I want in my query using a model (it selects all columns by default)? I know how to do this with the sqlalchmey session: session.query(self.col1) , but how do I do it with with models? I can't do SomeModel.query() . Is there a way?
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How to tell if browser/tab is active [duplicate]
I have a function that is called every second that I only want to run if the current page is in the foreground, i.e. the user hasn't minimized the browser or switched to another tab. It serves no purpose if the user isn't looking at it and is potentially CPU-intensive, so I don't want to just waste ...
What are the most common non-BMP Unicode characters in actual use? [closed]
In your experience which Unicode characters, codepoints, ranges outside the BMP (Basic Multilingual Plane) are the most common so far? These are the ones which require 4 bytes in UTF-8 or surrogates in UTF-16.
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What killed my process and why?
My application runs as a background process on Linux. It is currently started at the command line in a Terminal window.
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Extract filename and extension in Bash
I want to get the filename (without extension) and the extension separately.
37 Answers
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Flatten an irregular list of lists
Yes, I know this subject has been covered before ( here , here , here , here ), but as far as I know, all solutions, except for one, fail on a list like this:
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Application auto build versioning
Is it possible to increment a minor version number automatically each time a Go app is compiled?
6 Answers
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Pickle incompatibility of numpy arrays between Python 2 and 3
I am trying to load the MNIST dataset linked here in Python 3.2 using this program:
7 Answers
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What is meaning of boolean value returned from an event-handling method in Android
In android, most event listener methods return a boolean value. What is that true/false value mean ? what will it result in to the subsequence events ?
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How to unzip files programmatically in Android?
I need a small code snippet which unzips a few files from a given .zip file and gives the separate files according to the format they were in the zipped file. Please post your knowledge and help me out.
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