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How to get current CPU and RAM usage in Python?
...m status (current CPU, RAM, free disk space, etc.) in Python? Bonus points for *nix and Windows platforms.
15 Answers
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Python __str__ and lists
...l automatically call the toString() method on each object inside the List. For example, if my list contains objects o1, o2, and o3, list.toString() would look something like this:
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List attributes of an object
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Note that this only works for user-defined classes, not for built-in or extension types.
– ivan_pozdeev
Oct 22 '17 at 7:48
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Swift Beta performance: sorting arrays
I was implementing an algorithm in Swift Beta and noticed that the performance was very poor. After digging deeper I realized that one of the bottlenecks was something as simple as sorting arrays. The relevant part is here:
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How to automatically generate N “distinct” colors?
...ike so:
// assumes hue [0, 360), saturation [0, 100), lightness [0, 100)
for(i = 0; i < 360; i += 360 / num_colors) {
HSLColor c;
c.hue = i;
c.saturation = 90 + randf() * 10;
c.lightness = 50 + randf() * 10;
addColor(c);
}
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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
... self.val = val
def __repr__(self):
return 'Foo({!r})'.format(self.val)
foo = Foo(1)
a = ['foo', foo]
b = a.copy()
c = a[:]
d = list(a)
e = copy.copy(a)
f = copy.deepcopy(a)
# edit orignal list and instance
a.append('baz')
foo.val = 5
print('original: %r\nlist.copy(): %r\nsl...
What is the canonical way to check for errors using the CUDA runtime API?
...is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , but what is the best way to put these together to reliably catch and report errors without requiri...
Python Linked List
...practical value in Python.
I've never used a singly linked list in Python for any problem except educational.
Thomas Watnedal suggested a good educational resource How to Think Like a Computer Scientist, Chapter 17: Linked lists:
A linked list is either:
the empty list, represented by None, o...
Should a return statement be inside or outside a lock?
...the (highly subjective) law of local coding style... I prefer ReturnInside for simplicity, but I wouldn't get excited about either.
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Reverse colormap in matplotlib
... Regarding reversing LinearSegmentedColormaps, I just did this for some colourmaps. Here's an IPython Notebook about it.
– kwinkunks
Apr 26 '14 at 12:57
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