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Explaining Python's '__enter__' and '__exit__'
I saw this in someone's code. What does it mean?
6 Answers
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How is std::function implemented?
...a expression is essentially implemented by the compiler creating a class with overloaded function call operator and the referenced variables as members. This suggests that the size of lambda expressions varies, and given enough references variables that size can be arbitrarily large .
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How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
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How do I disable log messages from the Requests library?
By default, the Requests python library writes log messages to the console, along the lines of:
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How to do SQL Like % in Linq?
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.Where(oh => oh.Hierarchy.Contains("/12/"))
You can also use .StartsWith() or .EndsWith().
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Nodejs - Redirect url
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The logic of determining a "wrong" url is specific to your application. It could be a simple file not found error or something else if you are doing a RESTful app. Once you've figured that out, sending a redirect is as simple as:
response.writeHead(302, {
'Location': 'your/404/path.html'
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Is there a function that returns the current class/method name? [duplicate]
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edited Mar 22 '11 at 5:17
answered Mar 22 '11 at 5:11
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Finding what branch a Git commit came from
Is there a way to find out what branch a commit comes from given its SHA-1 hash value?
14 Answers
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Import a module from a relative path
How do I import a Python module given its relative path?
22 Answers
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Mocking vs. Spying in mocking frameworks
In mocking frameworks, you can mock an object or spy on it. What's the difference between the two and when would/should I use one over the other?
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