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Why return NotImplemented instead of raising NotImplementedError
Python has a singleton called NotImplemented .
4 Answers
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Unit testing with Spring Security
... override the configuration, which can be done at runtime or slipping some XML onto the classpath. Even using annotation injection would be overridable with external XML. Such XML could inject the running system with a rogue principal.
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Dynamic instantiation from string name of a class in dynamically imported module?
In python, I have to instantiate certain class, knowing its name in a string, but this class 'lives' in a dynamically imported module. An example follows:
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binning data in python with scipy/numpy
...dd, and also to answer the question find mean bin values using histogram2d python that the scipy also have a function specially designed to compute a bidimensional binned statistic for one or more sets of data
import numpy as np
from scipy.stats import binned_statistic_2d
x = np.random.rand(100)
y...
Jaxb, Class has two properties of the same name
with jaxb, i try to read an xml file
only a few element in xml file are interesting, so i would like to skip many element
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How do I turn a python datetime into a string, with readable format date?
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The datetime class has a method strftime. The Python docs documents the different formats it accepts:
Python 2: strftime() Behavior
Python 3: strftime() Behavior
For this specific example, it would look something like:
my_datetime.strftime("%B %d, %Y")
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Python: fastest way to create a list of n lists
... is about 15 % faster on my machine.
Edit: Using NumPy, you can avoid the Python loop using
d = numpy.empty((n, 0)).tolist()
but this is actually 2.5 times slower than the list comprehension.
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Difference between a Message Broker and an ESB
... LMT, although many other languages are supported (for example, Java, PHP, Python, etc.) No other product comes close to the efficiency and ease of developing ESB applications than IBM Integration Bus since 90 percent of the coding of these applications is done by dragging and dropping nodes onto a ...
Can I redirect the stdout in python into some sort of string buffer?
I'm using python's ftplib to write a small FTP client, but some of the functions in the package don't return string output, but print to stdout . I want to redirect stdout to an object which I'll be able to read the output from.
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Maven project version inheritance - do I have to specify the parent version?
... work that way, better just stick with putting the versions in the sub pom.xml. maven release plugin doesn't really care about the versions there anyway.
– Shengjie
May 14 '12 at 12:07
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