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python添加模块的搜索路径 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...索路径：
1、函数添加
import sys
sys.path.append("/home/simon/Library")
2、改环境变量
非管理员用户可以修改系统环境变量 PYTHONPATH，修改~/.bashrc文件，添加内容
export PYTHONPATH=/home/simon/Library:$PYTHONPATH
3、增加 .path 文件（推荐）
找...
URL to load resources from the classpath in Java
...ory, as you don't need a URL to do this - you want to do this because some lib you can't (or don't want to) control wants urls...
JVM Handler registration
The ultimate option is to register a URLStreamHandlerFactory that will handle all urls across the jvm:
package my.org.url;
import java.net.UR...
How can I change an element's text without changing its child elements?
...);
p {
margin: 0px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="testSubject">
**text to change**
<p>text that should not change</p>
<p>text that should not change</p>
**also text to chan...
Run single test from a JUnit class using command-line
...e on test failure(s).
NOTE:
for JUnit version >= 4.9 you need hamcrest library in classpath
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Should I use an exception specifier in C++?
...irtual functions.
Legacy code
When you write code which relies on another library, you don't really know what it might do when something goes horribly wrong.
int lib_f();
void g() throw( k_too_small_exception )
{
int k = lib_f();
if( k < 0 ) throw k_too_small_exception();
}
g will ter...
SET NOCOUNT ON usage
...e done_count flag is true, regardless if NO_COUNT is ON. Depends on client lib implementation in cases when query holds SELECT statements or RPC calls that do select, it may require to disable counting... WHEN disabled, rows are still counted for select statement, but flag DONE_COUNT is set to false...
How to generate a Dockerfile from an image?
...ase help to resolve this problem running the image from your example? /usr/lib/ruby/gems/2.2.0/gems/excon-0.45.4/lib/excon/unix_socket.rb:14:in `connect_nonblock': Connection refused - connect(2) for /var/run/docker.sock (Errno::ECONNREFUSED) (Excon::Errors::SocketError)
– long...
How do I add custom field to Python log format string?
...t; logging.warning('test')
Traceback (most recent call last):
File "/usr/lib/python2.7/logging/__init__.py", line 846, in emit
msg = self.format(record)
File "/usr/lib/python2.7/logging/__init__.py", line 723, in format
return fmt.format(record)
File "/usr/lib/python2.7/logging/__init_...
Verify version of rabbitmq
...
As Marek said on a local server, or, on a remote server (using amqplib):
from amqplib import client_0_8 as amqp
import sys
conn = amqp.Connection(host=sys.argv[1], userid="guest", password="guest", virtual_host="/", insist=False)
for k, v in conn.server_properties.items():
print k, v
...
Encode html entities in javascript
...ments all named character references (not just those in HTML4), use the he library (disclaimer: This library is mine). From its README:
he (for “HTML entities”) is a robust HTML entity encoder/decoder written in JavaScript. It supports all standardized named character references as per HTML,...