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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...
Accessing class variables from a list comprehension in the class definition
...ce is saved. [4] A class object is then created using the inheritance list for the base classes and the saved local namespace for the attribute dictionary.
Emphasis mine; the execution frame is the temporary scope.
Because the scope is repurposed as the attributes on a class object, allowing it t...
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 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 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
1
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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]...
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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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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How to print to console in pytest?
...port that shows what was printed to standard out in that particular test.
For example,
def test_good():
for i in range(1000):
print(i)
def test_bad():
print('this should fail!')
assert False
Results in the following output:
>>> py.test tmp.py
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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...