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Understanding __get__ and __set__ and Python descriptors
...AttributeError: __delete__
And you can't assign a variable that can't be converted to a float:
>>> t1.celsius = '0x02'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 7, in __set__
ValueError: invalid literal for float(): ...
Simple way to create matrix of random numbers
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First, create numpy array then convert it into matrix. See the code below:
import numpy
B = numpy.random.random((3, 4)) #its ndArray
C = numpy.matrix(B)# it is matrix
print(type(B))
print(type(C))
print(C)
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What is the difference between a strongly typed language and a statically typed language?
...he type system. C is notoriously weakly typed because any pointer type is convertible to any other pointer type simply by casting. Pascal was intended to be strongly typed, but an oversight in the design (untagged variant records) introduced a loophole into the type system, so technically it is we...
WPF TemplateBinding vs RelativeSource TemplatedParent
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One more thing - TemplateBindings don't allow value converting. They don't allow you to pass a Converter and don't automatically convert int to string for example (which is normal for a Binding).
share...
Join/Where with LINQ and Lambda
...ple. Its really convenient. If i suffer any performance penalties then ill convert the query to Dapper
– ozzy432836
Jun 27 at 10:59
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Is there a way to access method arguments in Ruby?
...o #{eval arg.to_s} to get it to work, otherwise you get a TypeError: can't convert Symbol into String
– Javid Jamae
Oct 11 '12 at 3:03
5
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.NET unique object identifier
...erence is the unique identifier for the object. I don't know of any way of converting this into anything like a string etc. The value of the reference will change during compaction (as you've seen), but every previous value A will be changed to value B, so as far as safe code is concerned it's still...
Templated check for the existence of a class member function?
...char>() == true, "fail X"); will compile and not assert because char is convertable to int, so if that behavior is not wanted and want that all argument types match i dont know how that can be achieved?
– Gabriel
Oct 4 '15 at 14:10
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Monad in plain English? (For the OOP programmer with no FP background)
...To clarify the kind of understanding I was looking for, let's say you were converting an FP application that had monads into an OOP application. What would you do to port the responsibilities of the monads into the OOP app?
Most OOP languages do not have a rich enough type system to represent the ...
Why do people say there is modulo bias when using a random number generator?
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Yuck :-P converting to a double, then multiplying by MAX_UPPER_LIMIT/RAND_MAX is much cleaner and performs better.
– boycy
Jun 13 '12 at 7:59
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