大约有 46,000 项符合查询结果（耗时：0.0467秒） [XML]
Use numpy array in shared memory for multiprocessing
I would like to use a numpy array in shared memory for use with the multiprocessing module. The difficulty is using it like a numpy array, and not just as a ctypes array.
...
if A vs if A is not None:
...uivalents 0 or 1. When this method is not defined, __len__() is called, if it is defined, and the object is considered true if its result is nonzero. If a class defines neither __len__() nor __nonzero__(), all its instances are considered true.
On the other hand,
if A is not None:
compares only...
How to access the ith column of a NumPy multidimensional array?
...exing) of the NumPy reference. This is quick, at least in my experience. It's certainly much quicker than accessing each element in a loop.
share
|
improve this answer
|
fo...
What is the most pythonic way to check if an object is a number?
Given an arbitrary python object, what's the best way to determine whether it is a number? Here is is defined as acts like a number in certain circumstances .
...
How do I join two lines in vi?
...follow
|
edited Jun 1 '13 at 23:23
ArtOfWarfare
16.7k1313 gold badges112112 silver badges159159 bronze badges
...
html select option separator
...ion>
</optgroup>
</select>
disabled option (a bit better):
<select>
<option>First</option>
<option disabled>_________</option>
<option>Second</option>
<option>Third</option>
</select>
...
How to import a module given the full path?
How can I load a Python module given its full path? Note that the file can be anywhere in the filesystem, as it is a configuration option.
...
Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
... Gmail three-fragment animation" scenario. Specifically, we want to start with two fragments, like this:
6 Answers
...
Link to all Visual Studio $ variables
...follow
|
edited Mar 15 '19 at 17:51
answered May 6 '09 at 15:53
...
How to throw an exception in C?
... In C the errors are notified by the returned value of the function, the exit value of the process, signals to the process (Program Error Signals (GNU libc)) or the CPU hardware interruption (or other notification error form the CPU if there is)(How processor handles the case of division by zero).
...