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Python memoising/deferred lookup property decorator
...dproperty
class Foo(object):
def __init__(self):
self.value = 4
@cachedproperty
def cached_prop(self):
self.value += 1
return self.value
f = Foo()
print(f.value) # initial value
print(f.cached_prop) # cached property is calculated
f.value = 1
print(f.cached_...
Convert UTC datetime string to local datetime
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422
If you don't want to provide your own tzinfo objects, check out the python-dateutil library. ...
IList vs IEnumerable for Collections on Entities
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Bakudan
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answered Dec 18 '08 at 2:27
Matt HamiltonMatt Hamilton
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How to get a list of current open windows/process with Java?
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14 Answers
14
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How to measure code coverage in Golang?
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140
Note that Go 1.2 (Q4 2013, rc1 is available) will now display test coverage results:
One ma...
KeyValuePair VS DictionaryEntry
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edited Jul 31 '13 at 6:45
answered May 25 '09 at 5:46
cd...
What's the easiest way to escape HTML in Python?
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answered Jun 30 '09 at 4:18
nosklonosklo
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What are the advantages of NumPy over regular Python lists?
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741
NumPy's arrays are more compact than Python lists -- a list of lists as you describe, in Python...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
...X[,t], Y[,t]))
Y[X[J(unique_keys)]]
## t b a
## 1: 1 NA 1
## 2: 2 NA 4
## 3: 3 9 9
## 4: 4 16 16
## 5: 5 25 NA
## 6: 6 36 NA
# The following will give the same with the column order X,Y
X[Y[J(unique_keys)]]
share
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np.mean() vs np.average() in Python NumPy?
I notice that
5 Answers
5
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