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`staticmethod` and `abc.abstractmethod`: Will it blend?
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35
class abstractstatic(staticmethod):
__slots__ = ()
def __init__(self, function):
...
How do I append one string to another in Python?
...hon -m timeit -s"s=''" "for i in xrange(10):s+='a'"
1000000 loops, best of 3: 1.85 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(100):s+='a'"
10000 loops, best of 3: 16.8 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(1000):s+='a'"
10000 loops, best of 3: 158 usec per loop
$...
How do you rename a table in SQLite 3.0?
How do you rename a table in SQLite 3.0?
2 Answers
2
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How to apply shell command to each line of a command output?
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pixatlazaki
41355 silver badges1818 bronze badges
answered Apr 26 '10 at 3:34
Michael MrozekMichael Mrozek
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Leading zeros for Int in Swift
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703
Assuming you want a field length of 2 with leading zeros you'd do this:
import Foundation
for ...
M_PI works with math.h but not with cmath in Visual Studio
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αλεχολυτ
3,97111 gold badge2020 silver badges5858 bronze badges
answered Jul 3 '11 at 15:58
GozGoz
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Is inject the same thing as reduce in ruby?
... |
edited May 9 '14 at 7:03
answered Dec 11 '12 at 3:44
Zac...
Returning first x items from array
...nittlknittl
184k4242 gold badges255255 silver badges306306 bronze badges
1
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How to return multiple lines JSX in another return statement in React?
... the tags as function calls (see docs). Then the first one becomes:
{[1,2,3].map(function (n) {
return React.DOM.p(...);
})}
And the second one:
{[1,2,3].map(function (n) {
return (
React.DOM.h3(...)
React.DOM.p(...)
)
})}
It should now be clear that the second snippet doesn't re...
cartesian product in pandas
...import DataFrame, merge
df1 = DataFrame({'key':[1,1], 'col1':[1,2],'col2':[3,4]})
df2 = DataFrame({'key':[1,1], 'col3':[5,6]})
merge(df1, df2,on='key')[['col1', 'col2', 'col3']]
Output:
col1 col2 col3
0 1 3 5
1 1 3 6
2 2 4 5
3 2 4 6
See here...