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open read and close a file in 1 line of code
Now I use:
11 Answers
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How to uninstall editable packages with pip (installed with -e)
... install --editable .
Uninstall:
rm -r $(find . -name '*.egg-info')
Now you can use:
pip uninstall package_name
or python setup.py develop --uninstall or python setup.py develop -u
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Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
...is will throw a NullReferenceException in the second line and you want to know why .NET doesn't tell you that it was s that was null when the exception was thrown.
To understand why you don't get that piece of information you should remember that it is not C# source that executes but rather IL:
I...
Query-string encoding of a Javascript Object
Do you know a fast and simple way to encode a Javascript Object into a string that I can pass via a GET Request?
40 Ans...
'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
...d b is almost the same as b if a else a, except a is evaluated only once.
Now sit for a few minutes with a pen and paper, and convince yourself that when {a,b} is a subset of {True,False}, it works exactly as you would expect of Boolean operators. But I hope I have convinced you it is much more gen...
Should I use string.isEmpty() or “”.equals(string)?
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Thank you for the explanation. Now I know why to favor "".equals(str) over str.equals("")! I was always wondering why others use this so often, but didn't take null values into account. Great :-)
– Peter Wippermann
De...
How to add extension methods to Enums
...ve days")]
Week,
[Description("Twenty-one days")]
Month
}
Now you want to be able to do something like:
Duration duration = Duration.Week;
var description = duration.GetDescription(); // will return "Five days"
Your extension method GetDescription() can be written as follows:
us...
Place cursor at the end of text in EditText
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Hey @Mullay, I am now handling it by overriding the onSelectionChanged() method of an EditText class: public void onSelectionChanged(int start, int end) { CharSequence text = getText(); if (text != null) { if (start != text.l...
What are the differences between Mustache.js and Handlebars.js?
...ilers (JavaScript, Ruby, Python, C, etc.). Handlebars began in JavaScript, now there are projects like django-handlebars, handlebars.java, handlebars-ruby, lightncandy (PHP), and handlebars-objc.
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Integer division: How do you produce a double?
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I don't like casting primitives, who knows what may happen.
Why do you have an irrational fear of casting primitives? Nothing bad will happen when you cast an int to a double. If you're just not sure of how it works, look it up in the Java Language Specificatio...