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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
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Cosine Similarity between 2 Number Lists
... root.
ETA: Updated print call to be a function. (The original was Python 2.7, not 3.3. The current runs under Python 2.7 with a from __future__ import print_function statement.) The output is the same, either way.
CPYthon 2.7.3 on 3.0GHz Core 2 Duo:
>>> timeit.timeit("cosine_similarity...
Getting the index of the returned max or min item using max()/min() on a list
...benchmark points out:
I have run the benchmark on my machine with python 2.7 for the two solutions above (blue: pure python, first solution) (red, numpy solution) and for the standard solution based on itemgetter() (black, reference solution).
The same benchmark with python 3.5 showed that the met...
Convert python datetime to epoch with strftime
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@Michael That function is new in Python 2.7, you must be using an older version. For versions before 2.7 you can do td.seconds + td.days*24*3600. This discards the microseconds part.
– jleahy
Apr 21 '14 at 12:31
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UnicodeDecodeError: 'charmap' codec can't decode byte X in position Y: character maps to
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Cool, I had that problem with some Python 2.7 code that I tried to run in Python 3.4. Latin-1 worked for me!
– 1vand1ng0
Apr 14 '15 at 8:56
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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
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note, check_output was added with python 2.7 docs.python.org/2.7/library/…
– phyatt
Nov 23 '15 at 21:06
1
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What's the best way to learn LISP? [closed]
... and C for a couple or years now, and I just finished reading Hackers and Painters, so I would love to give LISP a try!
23 ...
Remove Primary Key in MySQL
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Without an index, maintaining an autoincrement column becomes too expensive, that's why MySQL requires an autoincrement column to be a leftmost part of an index.
You should remove the autoincrement property before dropping the key:
ALTER TABL...
How to avoid .pyc files?
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At least on OS X 10.8 running Python 2.7 the environment variable has not effect.
– sorin
Nov 29 '12 at 13:53
5
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Extract subset of key-value pairs from Python dictionary object?
...bigdict[k]) for k in ('l', 'm', 'n'))
... or in Python 3 Python versions 2.7 or later (thanks to Fábio Diniz for pointing that out that it works in 2.7 too):
{k: bigdict[k] for k in ('l', 'm', 'n')}
Update: As Håvard S points out, I'm assuming that you know the keys are going to be in the dic...