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	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	The Python 3 package contains the Python development environment. It is useful for object-oriented programming, writing scripts, prototyping large programs, and developing entire applications. Python is an interpreted computer language.	Python 3 软件包包含 Python 开发环境。它被用于面向对象编程，编写脚本，为大型程序建立原型，或者开发完整的应用。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<userinput remap="configure">./configure --prefix=/usr \ --enable-shared \ --with-system-expat \ --enable-optimizations</userinput>	<userinput remap="configure">./configure --prefix=/usr \ --enable-shared \ --with-system-expat \ --with-system-ffi \ --with-ensurepip=yes</userinput>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	This switch enables linking against the system version of <application>Expat</application>.	该选项允许链接到系统已经安装的 <application>Expat</application>。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<parameter>--enable-optimizations</parameter>	<parameter>--with-ensurepip=yes</parameter>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	This switch enables extensive, but time-consuming, optimization steps. The interpreter is built twice; tests performed on the first build are used to improve the optimized final version.
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	Some tests are known to occasionally hang indefinitely. So to test the results, run the test suite but set a 2-minute time limit for each test case:
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<userinput remap="test">make test TESTOPTS="--timeout 120"</userinput>	<userinput remap="make">make</userinput>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	For a relatively slow system you may need to increase the time limit and 1 SBU (measured when building Binutils pass 1 with one CPU core) should be enough. Some tests are flaky, so the test suite will automatically re-run failed tests. If a test failed but then passed when re-run, it should be considered as passed. One test, test_ssl, is known to fail in the chroot environment.
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<userinput remap="install">make install</userinput>	<userinput remap="make">make</userinput>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	We use the <command>pip3</command> command to install Python 3 programs and modules for all users as <systemitem class='username'>root</systemitem> in several places in this book. This conflicts with the Python developers' recommendation: to install packages into a virtual environment, or into the home directory of a regular user (by running <command>pip3</command> as this user). A multi-line warning is triggered whenever <command>pip3</command> is issued by the <systemitem class='username'>root</systemitem> user.
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	The main reason for the recommendation is to avoid conflicts with the system's package manager (<command>dpkg</command>, for example). LFS does not have a system-wide package manager, so this is not a problem. Also, <command>pip3</command> will check for a new version of itself whenever it's run. Since domain name resolution is not yet configured in the LFS chroot environment, <command>pip3</command> cannot check for a new version of itself, and will produce a warning.
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	After we boot the LFS system and set up a network connection, a different warning will be issued, telling the user to update <command>pip3</command> from a pre-built wheel on PyPI (whenever a new version is available). But LFS considers <command>pip3</command> to be a part of Python 3, so it should not be updated separately. Also, an update from a pre-built wheel would deviate from our objective: to build a Linux system from source code. So the warning about a new version of <command>pip3</command> should be ignored as well. If you wish, you can suppress all these warnings by running the following command, which creates a configuration file:
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<userinput remap="install">cat &gt; /etc/pip.conf &lt;&lt; EOF <literal>[global] root-user-action = ignore disable-pip-version-check = true</literal> EOF </userinput>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	In LFS and BLFS we normally build and install Python modules with the <command>pip3</command> command. Please be sure that the <command>pip3 install</command> commands in both books are run as the &root; user (unless it's for a Python virtual environment). Running <command>pip3 install</command> as a non-&root; user may seem to work, but it will cause the installed module to be inaccessible by other users.
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<command>pip3 install</command> will not reinstall an already installed module automatically. When using the <command>pip3 install</command> command to upgrade a module (for example, from meson-0.61.3 to meson-0.62.0), insert the option <parameter>--upgrade</parameter> into the command line. If it's really necessary to downgrade a module, or reinstall the same version for some reason, insert <parameter>--force-reinstall --no-deps</parameter> into the command line.
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<userinput remap="install">install -v -dm755 /usr/share/doc/python-&python-version;/html tar --strip-components=1 \ --no-same-owner \ --no-same-permissions \ -C /usr/share/doc/python-&python-version;/html \ -xvf ../python-&python-version;-docs-html.tar.bz2</userinput>	<userinput remap="install">install -v -dm755 /usr/share/doc/python-&python-version;/html tar --strip-components=1 \ --no-same-owner \ --no-same-permissions \ -C /usr/share/doc/python-&python-version;/html \ -xvf ../python-&python-version;-docs-html.tar.bz2</userinput>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<option>--no-same-owner</option> and <option>--no-same-permissions</option>	<option>--no-same-owner</option> 和 <option>--no-same-permissions</option>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	Ensure the installed files have the correct ownership and permissions. Without these options, <application>tar</application> will install the package files with the upstream creator's values.	保证安装的文件拥有正确的所有者和权限码。在没有这些选项的时候，<application>tar</application> 会以上游开发者使用的用户和权限码安装文件。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	Installed programs	安装的程序
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	Installed library	安装的库
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	Installed directories	安装的目录
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	<?dbfo list-presentation="list"?> <?dbhtml list-presentation="table"?>
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	is a <application>Python</application> program that reads <application>Python 2.x</application> source code and applies a series of fixes to transform it into valid <application>Python 3.x</application> code	是一个 <application>Python</application> 程序，读取 <application>Python 2.x</application> 源代码并对它进行一系列修正，转换成合法的 <application>Python 3.x</application> 源代码。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	is a wrapper script that opens a <application>Python</application> aware GUI editor. For this script to run, you must have installed <application>Tk</application> before Python, so that the Tkinter Python module is built.	一个封装脚本，启动支持 <application>Python</application> 语法的 GUI 文本编辑器。要运行这个脚本，必须在 Python 之前安装 <application>Tk</application>，从而构建 Tkinter Python 模块。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	The package installer for Python. You can use pip to install packages from Python Package Index and other indexes.	Python 包安装器。您可以使用 pip 安装来自 Python 软件包目录或其他目录的包。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	is the <application>Python</application> documentation tool	是 <application>Python</application> 文档工具。
	Linux From Scratch 12.3/chapter08_python — Chinese (Simplified Han script)	is the interpreter for Python, an interpreted, interactive, object-oriented programming language	是一个解释性、交互性、面向对象的程序设计语言。