大约有 41,000 项符合查询结果（耗时：0.0582秒） [XML]
What is setup.py?
Can anyone please explain what setup.py is and how it can be configured or used?
10 Answers
...
Where is Python's sys.path initialized from?
...PYTHONPATH, plus an installation-dependent default"
-- http://docs.python.org/library/sys.html#sys.path
share
|
improve this answer
|
follow
|
...
Does a valid XML file require an XML declaration?
...t says it "should" be used -- which means it is recommended, but not mandatory. In XML 1.1, however, the declaration is mandatory. See section 2.8 of the XML 1.1 Recommendation, where it says "MUST" be used. It even goes on to state that if the declaration is absent, that automatically implies the d...
Do I need dependency injection in NodeJS, or how to deal with …?
...
In short, you don't need a dependency injection container or service locater like you would in C#/Java. Since Node.js, leverages the module pattern, it's not necessary to perform constructor or property injection. Although you sti...
Common use-cases for pickle in Python
...ed (persistence)
2) sending python data over a TCP connection in a multi-core or distributed system (marshalling)
3) storing python objects in a database
4) converting an arbitrary python object to a string so that it can be used as a dictionary key (e.g. for caching & memoization).
There ar...
Difference between volatile and synchronized in Java
...
It's important to understand that there are two aspects to thread safety.
execution control, and
memory visibility
The first has to do with controlling when code executes (including the order in which instructions are executed)...
Show which git tag you are on?
...
Edit: Jakub Narębski has more git-fu. The following much simpler command works perfectly:
git describe --tags
(Or without the --tags if you have checked out an annotated tag. My tag is lightweight, so I need the --tags.)
original answer follows:
...
multiprocessing.Pool: When to use apply, apply_async or map?
I have not seen clear examples with use-cases for Pool.apply , Pool.apply_async and Pool.map . I am mainly using Pool.map ; what are the advantages of others?
...
Sending websocket ping/pong frame from browser
...methods on a javascript WebSocket object in chrome related to ping-pong). Or is it just a design pattern (e.g. I literally send "ping" or any other string to the server and have it respond). Is ping-pong at all related to continuation frames?
...
Can I use a :before or :after pseudo-element on an input field?
... use the :after CSS pseudo-element on an input field, but it does not work. If I use it with a span , it works OK.
19...