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correct way to use super (argument passing)
...s following Python's Super Considered Harmful , and went to test out his examples.
3 Answers
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What is the difference between return and return()?
... is, nothing. The parentheses are allowed because they are allowed in any expression to influence evaluation order, but in your examples they're just superfluous.
return is not a function, but a statement. It is syntactically similar to other simple control flow statements like break and continue t...
Is there a way to 'uniq' by column?
...field 1
Test result:
overflow@domain2.com,2009-11-27 00:58:29.793000000,xx3.net,255.255.255.0
stack2@domain.com,2009-11-27 01:05:47.893000000,xx2.net,127.0.0.1
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typeof for RegExp
Is there anyway to detect if a JavaScript object is a regex?
8 Answers
8
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Remove specific commit
... be a toss up between revert and rebase, and there are no straightforward examples, and the docs assume I know more than I do.
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...ng an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
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How do I resize an image using PIL and maintain its aspect ratio?
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Define a maximum size.
Then, compute a resize ratio by taking min(maxwidth/width, maxheight/height).
The proper size is oldsize*ratio.
There is of course also a library method to do this: the method Image.thumbnail.
Below is an (edite...
Reduce left and right margins in matplotlib plot
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One way to automatically do this is the bbox_inches='tight' kwarg to plt.savefig.
E.g.
import matplotlib.pyplot as plt
import numpy as np
data = np.arange(3000).reshape((100,30))
plt.imshow(data)
plt.savefig('test.png', bbox_inches='tight')
Another way is to use f...
The static keyword and its various uses in C++
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Variables:
static variables exist for the "lifetime" of the translation unit that it's defined in, and:
If it's in a namespace scope (i.e. outside of functions and classes), then it can't be accessed from any other translation unit. This is known as "i...
In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
...d the resulting application compiles fine. However, I keep getting an "red-x" error notification in the Package Explorer.
2...