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What is thread safe or non-thread safe in PHP?
...ad for each incoming request. The Apache HTTP web server supports multiple models for handling requests, one of which (called the worker MPM) uses threads. But it supports another concurrency model called the prefork MPM which uses processes -- that is, the web server will create/dedicate a single p...
How to get UTF-8 working in Java webapps?
...QL serveri has to be configured also. Typically this is done in Windows by modifying my.ini -file and in Linux by configuring my.cnf -file.
In those files it should be defined that all clients connected to the server use utf8 as the default character set and that the default charset used by the serv...
How to check if a python module exists without importing it
I need to know if a python module exists, without importing it.
13 Answers
13
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Can someone explain __all__ in Python?
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It's a list of public objects of that module, as interpreted by import *. It overrides the default of hiding everything that begins with an underscore.
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What is the most efficient way of finding all the factors of a number in Python?
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result = set()
for i in range(1, int(n ** 0.5) + 1):
div, mod = divmod(n, i)
if mod == 0:
result |= {i, div}
return result
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deny directory listing with htaccess
...can think is there's some problem with server config. Try enabling rewrite module, and directory setting to AllowOverride All. If all that is already in place, and what you commented is true, I must be just too lucky to get Options All -Indexes to work in every project on different servers.
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PHP编译configure时常见错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ind output from lex; giving up
yum -y install flex
7、configure: error: mod_deflate has been requested but can not be built due to prerequisite failures
centos: yum -y install zlib-devel openssl-devel
debian: apt-get install zlib1g-dev
8、configure: error: libxpm.(a|so) not found.
centos: yu...
What is meant by the term “hook” in programming?
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Essentially it's a place in code that allows you to tap in to a module to either provide different behavior or to react when something happens.
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Changes in import statement python3
...equires you to use explicit imports which explicitly specify location of a module on a path-alike basis. Your derived.py would look like:
from .base import BaseThing
The leading . says 'import base from module directory'; in other words, .base maps to ./base.py.
Similarly, there is .. prefix whi...
Can anyone explain python's relative imports?
....py is located is in your python path. parent.py lives there as a separate module.
You can also safely delete the top level __init__.py, if you don't import anything into a script further up the directory tree.
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