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Python memory usage of numpy arrays
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246
You can use array.nbytes for numpy arrays, for example:
>>> import numpy as np
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How to reshape data from long to wide format
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268
Using reshape function:
reshape(dat1, idvar = "name", timevar = "numbers", direction = "wide")...
Python date string to date object
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605
You can use strptime in the datetime package of Python:
>>> import datetime
>>...
Patterns for handling batch operations in REST web services?
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6
It isn't necessary. POST is a factory-pattern method, it is less explicit and obvious than PUT/DELETE/GET. The only expectation is that the ...
How do I look inside a Python object?
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360
Python has a strong set of introspection features.
Take a look at the following built-in func...
In STL maps, is it better to use map::insert than []?
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– David Rodríguez - dribeas
Jan 4 '18 at 16:14
1
there is a way to tell if you inserted or just assigne...
How to detect a Christmas Tree? [closed]
...ethod are shown below in red:
The source code is written for Python 2.7.6 and it depends on numpy, scipy, matplotlib and scikit-learn. I've divided it into two parts. The first part is responsible for the actual image processing:
from PIL import Image
import numpy as np
import scipy as sp
impo...
“Private” (implementation) class in Python
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Use a single underscore prefix:
class _Internal:
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This is the official Python convention for 'internal' symbols; "from module import *" does not import underscore-prefixed objects.
Edit: Reference to the single underscore convention
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Iterating over Java collections in Scala
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edited Jul 6 '14 at 1:15
community wiki
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What is the simplest way to convert a Java string from all caps (words separated by underscores) to
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196
Another option is using Google Guava's com.google.common.base.CaseFormat
George Hawkins left a ...