大约有 44,900 项符合查询结果（耗时：0.0437秒） [XML]
What does the Ellipsis object do?
...is is an object that can appear in slice notation. For example:
myList[1:2, ..., 0]
Its interpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional ...
Update Eclipse with Android development tools v. 23
I updated Eclipse with the new SDK tools (rev. 23), but now when Eclipse starts I receive the error:
43 Answers
...
Does Swift have documentation generation support?
...
12 Answers
12
Active
...
Sort a Custom Class List
.../ add some stuff to the list
// now sort
week.Sort(delegate(cTag c1, cTag c2) { return c1.date.CompareTo(c2.date); });
share
|
improve this answer
|
follow
|
...
How to pretty print XML from the command line?
...
libxml2-utils
This utility comes with libxml2-utils:
echo '<root><foo a="b">lorem</foo><bar value="ipsum" /></root>' |
xmllint --format -
Perl's XML::Twig
This command comes with XML::Twig per...
Linux command or script counting duplicated lines in a text file?
...
219
Send it through sort (to put adjacent items together) then uniq -c to give counts, i.e.:
sort...
Passing a list of kwargs?
...f method(**kwargs):
print kwargs
keywords = {'keyword1': 'foo', 'keyword2': 'bar'}
method(keyword1='foo', keyword2='bar')
method(**keywords)
Running this in Python confirms these produce identical results:
{'keyword2': 'bar', 'keyword1': 'foo'}
{'keyword2': 'bar', 'keyword1': 'foo'}
...
Filtering a list based on a list of booleans
...ss:
>>> from itertools import compress
>>> list_a = [1, 2, 4, 6]
>>> fil = [True, False, True, False]
>>> list(compress(list_a, fil))
[1, 4]
Timing comparisons(py3.x):
>>> list_a = [1, 2, 4, 6]
>>> fil = [True, False, True, False]
>>>...
Remove trailing newline from the elements of a string list
...
216
>>> my_list = ['this\n', 'is\n', 'a\n', 'list\n', 'of\n', 'words\n']
>>> map...
python numpy ValueError: operands could not be broadcast together with shapes
...iplication, but * does something else.
We have two arrays:
X, shape (97,2)
y, shape (2,1)
With Numpy arrays, the operation
X * y
is done element-wise, but one or both of the values can be expanded in one or more dimensions to make them compatible. This operation are called broadcasting. Dime...