大约有 2,100 项符合查询结果（耗时：0.0167秒） [XML]
How to list only top level directories in Python?
....walk timeit(os.walk(os.getcwd()).next()[1]) 1000 loops, best of 3: 734 µs per loop timeit(filter(os.path.isdir, os.listdir(os.getcwd()))) 1000 loops, best of 3: 477 µs per loop
– B.Kocis
May 18 '16 at 14:19
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How can I obtain the element-wise logical NOT of a pandas Series?
... True]*10000)
In [10]: %timeit np.invert(s)
10000 loops, best of 3: 91.8 µs per loop
In [11]: %timeit ~s
10000 loops, best of 3: 73.5 µs per loop
In [12]: %timeit (-s)
10000 loops, best of 3: 73.5 µs per loop
As of Pandas 0.13.0, Series are no longer subclasses of numpy.ndarray; they are no...
How to set Sqlite3 to be case insensitive when string comparing?
...the ASCII range. For
example, the expression 'a' LIKE 'A'
is TRUE but 'æ' LIKE 'Æ' is FALSE.)."
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Do I need elements in persistence.xml?
...red Nov 22 '09 at 23:41
Mads MobækMads Mobæk
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Create Directory When Writing To File In Node.js
...-extra. If you don't want to install a package, please see Tiago Peres França's answer below.
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JavaScript “new Array(n)” and “Array.prototype.map” weirdness
...ered Mar 31 '11 at 14:45
David MårtenssonDavid Mårtensson
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default select option as blank
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<td><b>Ação da atividade:</b><br>
<select style='align:left; width:100%;' id='cbxTipoSFA' name='cbxTipoSFA'>
<option hidden selected>Selecione uma opção</option>
<option value='Instalação'...
Selecting/excluding sets of columns in pandas [duplicate]
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It seems that the drop method is slightly faster (~515 µs vs ~680 µs), at least in some tests on a 15611 rows x 5 columns dataframe of which I wanted to drop 3 columns, in python 3.6 and pandas 0.20.3.
– bli
Nov 8 '17 at 17:12
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Couldn't register with the bootstrap Server
... answered May 30 '11 at 21:09
Pål BrattbergPål Brattberg
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Vim: faster way to select blocks of text in visual mode
... answered Sep 13 '11 at 18:55
µBioµBio
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