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How do you generate dynamic (parameterized) unit tests in python?
I have some kind of test data and want to create a unit test for each item. My first idea was to do it like this:
25 Answer...
Evaluating a mathematical expression in a string
...etic expressions. Below, I've rewrapped fourFn into a numeric parser class for easier reuse.
from __future__ import division
from pyparsing import (Literal, CaselessLiteral, Word, Combine, Group, Optional,
ZeroOrMore, Forward, nums, alphas, oneOf)
import math
import operator...
Design patterns or best practices for shell scripts [closed]
...ne know of any resources that talk about best practices or design patterns for shell scripts (sh, bash etc.)?
9 Answers
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What are “named tuples” in Python?
... They were added in Python 2.6 and Python 3.0, although there is a recipe for implementation in Python 2.4.
For example, it is common to represent a point as a tuple (x, y). This leads to code like the following:
pt1 = (1.0, 5.0)
pt2 = (2.5, 1.5)
from math import sqrt
line_length = sqrt((pt1[0]...
What is the fastest way to get the value of π?
I'm looking for the fastest way to obtain the value of π, as a personal challenge. More specifically, I'm using ways that don't involve using #define constants like M_PI , or hard-coding the number in.
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How to implement __iter__(self) for a container object (Python)
... didn't exist, so you would have to do:
def __iter__(self):
yield 5
for x in some_list:
yield x
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How is __eq__ handled in Python and in what order?
...(a).
If none of the above are the case, Python repeats the process looking for __cmp__. If it exists, the objects are equal iff it returns zero.
As a final fallback, Python calls object.__eq__(a, b), which is True iff a and b are the same object.
If any of the special methods return NotImplemented...
How to make an immutable object in Python?
...swer", because it's the easiest way of doing it. Sebastian gets the bounty for giving a short Cython implementation. Cheers!
– Lennart Regebro
Feb 2 '11 at 12:39
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Reference — What does this symbol mean in PHP?
... Post-decrement Returns $a, then decrements $a by one.
These can go before or after the variable.
If put before the variable, the increment/decrement operation is done to the variable first then the result is returned. If put after the variable, the variable is first returned, then the increme...
Is this object-lifetime-extending-closure a C# compiler bug?
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That sure looks like a bug. Thanks for bringing it to my attention. I'll look into it. It is possible that it has already been found and fixed.
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