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Find a Git branch containing changes to a given file
... was originally created on, then google git-what-branch, but be aware that fast-forward merges can obscure that information.
– Seth Robertson
Jun 6 '11 at 22:10
...
Python: fastest way to create a list of n lists
...
The probably only way which is marginally faster than
d = [[] for x in xrange(n)]
is
from itertools import repeat
d = [[] for i in repeat(None, n)]
It does not have to create a new int object in every iteration and is about 15 % faster on my machine.
Edit: Us...
Which is more efficient, a for-each loop, or an iterator?
...ll others that implement the RandomAccess interface. The "C-style" loop is faster than the Iterator-based one. docs.oracle.com/javase/7/docs/api/java/util/RandomAccess.html
– andresp
Nov 20 '13 at 1:00
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HTML 5 tag vs Flash video. What are the pros and cons?
...
Encoding in multiple qualities and codecs is fast becoming the reality. Back when people were happy with 256kbps Real streams, and phones were monochromatic LCD, this was OK. Now we have various qualities and devices--web, iPod, phones, and soon TV. The reasons for c...
What's the difference between streams and datagrams in network programming?
...ugh the classroom may not be the same, one person might not pass a note as fast as another, etc.
So you use a stream socket when having information in order and intact is important. File transfer protocols are a good example here. You don't want to download some file with its contents randomly sh...
Creating a simple XML file using python
... implementations)
As a final note, either cElementTree or LXML should be fast enough for all your needs (both are optimized C code), but in the event you're in a situation where you need to squeeze out every last bit of performance, the benchmarks on the LXML site indicate that:
LXML clearly win...
Retrieving the last record in each group - MySQL
...at article to understand some details.
Solution 1
This one is incredibly fast, it takes about 0,8 secs on my 18M+ rows:
SELECT test_id, MAX(request_id) AS request_id
FROM testresults
GROUP BY test_id DESC;
If you want to change the order to ASC, put it in a subquery, return the ids only and use...
vim, switching between files rapidly using vanilla Vim (no plugins)
...ll buffer plugins I have tried (CtrlP, bufExplorer, ...) are not nearly as fast as this (granted, they offer more functionality but not enough for me to keep using them).
– Lieven Keersmaekers
Apr 19 '13 at 6:41
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Handling InterruptedException in Java
..., and bailing out with a RuntimeException is an appropriate response (fail-fast). Unless it's considered part of the general contract of a thread that even if you do not support interrupts you must continue operation when you receive them.
– amoe
Aug 30 '13 at...
List comprehension rebinds names even after scope of comprehension. Is this right?
...ut as
an intentional compromise to make list
comprehensions blindingly fast, and
while it was not a common pitfall for
beginners, it definitely stung people
occasionally. For generator
expressions we could not do this.
Generator expressions are implemented
using generators, whose exe...