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How do you generate dynamic (parameterized) unit tests in python?
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This is called "parametrization".
There are several tools that support this approach. E.g.:
pytest's decorator
parameterized
The resulting code looks like this:
from parameterized import parameterized
class TestSequence(unittes...
How do I get the number of elements in a list?
...turns 3.
Explanation
Everything in Python is an object, including lists. All objects have a header of some sort in the C implementation.
Lists and other similar builtin objects with a "size" in Python, in particular, have an attribute called ob_size, where the number of elements in the object is...
Is this object-lifetime-extending-closure a C# compiler bug?
...L_000e: ldloc.0
IL_000f: ldc.r8 42
IL_0018: ldc.r8 1
IL_0021: call float64 [mscorlib]System.Math::Pow(float64, float64)
IL_0026: stfld float64 ConsoleApplication1.Program/Foo/'<>c__DisplayClass1'::capturedVariable
IL_002b: ldarg.0
IL_002c: ldloc.0
IL_002d: ldftn ins...
How do I modify the URL without reloading the page?
...modify the URL in the address bar client-side. For instance, if you have a table of data with paging, sorting and filtering, and want those things to be Ajax powered, but still update the URL so that the current state of the page is bookmarkable. I can understand the security risks with modifying t...
What Process is using all of my disk IO
If I use "top" I can see what CPU is busy and what process is using all of my CPU.
7 Answers
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Convert from enum ordinal to enum type
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This is very worrying because arrays are mutable. Even though values[] is final, it doesn't prevent Suit.values[0] = Suit.Diamonds; somewhere in your code. Ideally that will never happen, but the overall principle of don't expose mutable fields still holds. For this a...
Iterate over object attributes in python
...foo = 1
... bar = 'hello'
... def func(self):
... return 'call me'
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>>> obj = Cls()
calling dir on the object gives you back all the attributes of that object, including python special attributes. Although some object attributes are callable, such as methods.
>>&...
Get name of current script in Python
...hen used in the main module, this is the name of the script that was originally invoked.
If you want to omit the directory part (which might be present), you can use os.path.basename(__file__).
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Does Flask support regular expressions in its URL routing?
...will be evaluated directly at runtime. This shouldn't be problematic for smaller apps (or apps that reuse regex's multiple times, I'd think) as the last couple of regex patterns are stored compiled in memory.
– bbenne10
Jul 18 '13 at 14:13
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C#: List All Classes in Assembly
...is part of my data layer generated using a NetTeirs template. We have many tables.
– dyslexicanaboko
Mar 28 '14 at 18:24
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