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How do you read from stdin?
... of the code golf challenges, but they all require the input to be taken from stdin . How do I get that in Python?
22 An...
StringIO in Python3
.... I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
8 Answers
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Python timedelta in years
... number of years have been since some date. Currently I've got timedelta from datetime module and I don't know how to convert it to years.
...
Difference between java.lang.RuntimeException and java.lang.Exception
...ust be handled in the calling class or above).
Any exception that derives from "Exception" is a checked exception, whereas a class that derives from RuntimeException is un-checked. RuntimeExceptions do not need to be explicitly handled by the calling code.
...
What does 'super' do in Python?
...t__. while
super(Child, self).__init__()
means to call a bound __init__ from the parent class that follows Child in the instance's Method Resolution Order (MRO).
If the instance is a subclass of Child, there may be a different parent that comes next in the MRO.
Explained simply
When you writ...
Efficient way to remove keys with empty strings from a dict
... +1. It's important to note that this does not actually remove the keys from an existing dictionary. Rather, it creates a new dictionary. Usually this is exactly what someone wants and is probably what the OP needs, but it is not what the OP asked for.
– Steven Rumbalski
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source of historical stock data [closed]
...
To start with, if you have some money don't bother with downloading data from Yahoo, get the end of day data straight from CSI data, this is where Yahoo gets their EOD data as well AFAIK. They have an API where you can extract the data to whatever format you want. I think the yearly subscription ...
What's the difference between event.stopPropagation and event.preventDefault?
...
stopPropagation stops the event from bubbling up the event chain.
preventDefault prevents the default action the browser makes on that event.
Examples
preventDefault
$("#but").click(function (event) {
event.preventDefault()
})
$("#foo").click(f...
What is a mixin, and why are they useful?
In " Programming Python ", Mark Lutz mentions "mixins". I'm from a C/C++/C# background and I have not heard the term before. What is a mixin?
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Passing additional variables from command line to make
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You have several options to set up variables from outside your makefile:
From environment - each environment variable is transformed into a makefile variable with the same name and value.
You may also want to set -e option (aka --environments-override) on, and your e...