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msgstr ""

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#: ../../tutorial/appendix.rst:5

msgid "Appendix"

msgstr "附录"

#: ../../tutorial/appendix.rst:11

msgid "Interactive Mode"

msgstr "交互模式"

#: ../../tutorial/appendix.rst:16

msgid "Error Handling"

msgstr "错误处理"

#: ../../tutorial/appendix.rst:18

msgid ""

"When an error occurs, the interpreter prints an error message and a stack "

"trace. In interactive mode, it then returns to the primary prompt; when "

"input came from a file, it exits with a nonzero exit status after printing "

"the stack trace. (Exceptions handled by an :keyword:`except` clause in a "

":keyword:`try` statement are not errors in this context.) Some errors are "

"unconditionally fatal and cause an exit with a nonzero exit; this applies to"

" internal inconsistencies and some cases of running out of memory. All "

"error messages are written to the standard error stream; normal output from "

"executed commands is written to standard output."

msgstr ""

"当发生错误时，解释器会打印错误信息和栈回溯。在交互模式下，将回到主命令提示符，而如果输入内容来自文件，在打印栈回溯之后，程序会以非零的退出状态码退出。（注：这个上下文中所说的错误不包括"

" :keyword:`try` 语句中已经被 :keyword:`except` "

"子句所捕获的异常。）有些错误是无条件致命的，会导致程序以非零状态退出，比如内部逻辑矛盾或某些情况下的内存耗尽。所有错误信息都会被写入标准错误流；而命令的正常输出则被写入标准输出流。"

#: ../../tutorial/appendix.rst:28

msgid ""

"Typing the interrupt character (usually :kbd:`Control-C` or :kbd:`Delete`) "

"to the primary or secondary prompt cancels the input and returns to the "

"primary prompt. [#]_ Typing an interrupt while a command is executing raises"

" the :exc:`KeyboardInterrupt` exception, which may be handled by a "

":keyword:`try` statement."

msgstr ""

"将中断字符（通常为 :kbd:`Control-C` 或 :kbd:`Delete` ）键入主要或辅助提示符会取消输入并返回主提示符。 [#]_ "

"在执行命令时键入中断引发的 :exc:`KeyboardInterrupt` 异常，可以由 :keyword:`try` 语句处理。"

#: ../../tutorial/appendix.rst:38

msgid "Executable Python Scripts"

msgstr "可执行的Python脚本"

#: ../../tutorial/appendix.rst:40

msgid ""

"On BSD'ish Unix systems, Python scripts can be made directly executable, "

"like shell scripts, by putting the line ::"

msgstr "在 BSD 等类Unix系统上，Python 脚本可以像 shell 脚本一样直接执行，通过在第一行添加："

#: ../../tutorial/appendix.rst:45

msgid ""

"(assuming that the interpreter is on the user's :envvar:`PATH`) at the "

"beginning of the script and giving the file an executable mode. The ``#!`` "

"must be the first two characters of the file. On some platforms, this first"

" line must end with a Unix-style line ending (``'\\n'``), not a Windows "

"(``'\\r\\n'``) line ending. Note that the hash, or pound, character, "

"``'#'``, is used to start a comment in Python."

msgstr ""

"（假设解释器位于用户的 :envvar:`PATH` ）脚本的开头，并将文件设置为可执行。 ``#!`` "

"必须是文件的前两个字符。在某些平台上，第一行必须以Unix样式的行结尾（``'\\n'``）结束，而不是以Windows（``'\\r\\n'``）行结尾。注意，“散列字符”，或者说“磅字符”，"

" ``'#'`` ，在Python中代表注释开始。"

#: ../../tutorial/appendix.rst:52

msgid ""

"The script can be given an executable mode, or permission, using the "

":program:`chmod` command."

msgstr "可以使用 :program:`chmod` 命令为脚本提供可执行模式或权限。"

#: ../../tutorial/appendix.rst:59

msgid ""

"On Windows systems, there is no notion of an \"executable mode\". The "

"Python installer automatically associates ``.py`` files with ``python.exe`` "

"so that a double-click on a Python file will run it as a script. The "

"extension can also be ``.pyw``, in that case, the console window that "

"normally appears is suppressed."

msgstr ""

"在Windows系统上，没有“可执行模式”的概念。 Python安装程序自动将 ``.py`` 文件与 ``python.exe`` "

"相关联，这样双击Python文件就会将其作为脚本运行。扩展也可以是 ``.pyw`` ，在这种情况下，会隐藏通常出现的控制台窗口。"

#: ../../tutorial/appendix.rst:69

msgid "The Interactive Startup File"

msgstr "交互式启动文件"

#: ../../tutorial/appendix.rst:71

msgid ""

"When you use Python interactively, it is frequently handy to have some "

"standard commands executed every time the interpreter is started. You can "

"do this by setting an environment variable named :envvar:`PYTHONSTARTUP` to "

"the name of a file containing your start-up commands. This is similar to "

"the :file:`.profile` feature of the Unix shells."

msgstr ""

"当您以交互模式使用 Python 时，您可能会希望在每次启动解释器时，解释器先执行几条您预先编写的命令，然后您再以交互模式继续使用。您可以通过将名为 "

":envvar:`PYTHONSTARTUP` 的环境变量设置为包含启动命令的文件的文件名来实现。这类似于 Unix shell 的 "

":file:`.profile` 功能。"

#: ../../tutorial/appendix.rst:77

msgid ""

"This file is only read in interactive sessions, not when Python reads "

"commands from a script, and not when :file:`/dev/tty` is given as the "

"explicit source of commands (which otherwise behaves like an interactive "

"session). It is executed in the same namespace where interactive commands "

"are executed, so that objects that it defines or imports can be used without"

" qualification in the interactive session. You can also change the prompts "

"``sys.ps1`` and ``sys.ps2`` in this file."

msgstr ""

"Python 只有在交互模式时，才会读取此文件，而非在从脚本读指令或是将 :file:`/dev/tty` 显式作为被运行的 Python "

"脚本的文件名时（后者反而表现得像一个交互式会话）。这个文件与交互式指令共享相同的命名空间，所以它定义或导入的对象可以在交互式会话中直接使用。您也可以在该文件中更改提示符"

" ``sys.ps1`` 和 ``sys.ps2``。"

#: ../../tutorial/appendix.rst:85

msgid ""

"If you want to read an additional start-up file from the current directory, "

"you can program this in the global start-up file using code like ``if "

"os.path.isfile('.pythonrc.py'): exec(open('.pythonrc.py').read())``. If you "

"want to use the startup file in a script, you must do this explicitly in the"

" script::"

msgstr ""

"如果您想 *从当前目录中* 读取一个额外的启动文件，您可以在上文所说的全局启动文件中编写像 ``if "

"os.path.isfile('.pythonrc.py'): exec(open('.pythonrc.py').read())`` "

"这样的代码。如果要在脚本中使用启动文件，则必须在脚本中显式执行此操作："

#: ../../tutorial/appendix.rst:102

msgid "The Customization Modules"

msgstr "定制模块"

#: ../../tutorial/appendix.rst:104

msgid ""

"Python provides two hooks to let you customize it: :mod:`sitecustomize` and "

":mod:`usercustomize`. To see how it works, you need first to find the "

"location of your user site-packages directory. Start Python and run this "

"code::"

msgstr ""

"Python提供了两个钩子来让你自定义它：:mod:`sitecustomize` 和 "

":mod:`usercustomize`。要查看其工作原理，首先需要找到用户site-packages目录的位置。启动Python并运行此代码::"

#: ../../tutorial/appendix.rst:112

msgid ""

"Now you can create a file named :file:`usercustomize.py` in that directory "

"and put anything you want in it. It will affect every invocation of Python,"

" unless it is started with the :option:`-s` option to disable the automatic "

"import."

msgstr ""

"现在，您可以在该目录中创建一个名为 :file:`usercustomize.py` "

"的文件，并将所需内容放入其中。它会影响Python的每次启动，除非它以 :option:`-s` 选项启动，以禁用自动导入。"

#: ../../tutorial/appendix.rst:116

msgid ""

":mod:`sitecustomize` works in the same way, but is typically created by an "

"administrator of the computer in the global site-packages directory, and is "

"imported before :mod:`usercustomize`. See the documentation of the "

":mod:`site` module for more details."

msgstr ""

":mod:`sitecustomize` 以相同的方式工作，但通常由计算机管理员在全局 site-packages 目录中创建，并在 "

":mod:`usercustomize` 之前被导入。有关详情请参阅 :mod:`site` 模块的文档。"

#: ../../tutorial/appendix.rst:123

msgid "Footnotes"

msgstr "备注"

#: ../../tutorial/appendix.rst:124

msgid "A problem with the GNU Readline package may prevent this."

msgstr "GNU Readline 包的问题可能会阻止这种情况。"