[po] auto sync

github-actions[bot] · github-actions[bot] · commit fa09bc6439f4 · 2020-05-14T23:32:01.000Z
diff --git a/library/argparse.po b/library/argparse.po
@@ -1020,12 +1020,15 @@ msgid ""
 "``errors=`` arguments of the :func:`open` function.  For example, "
 "``FileType('w')`` can be used to create a writable file::"
 msgstr ""
+"为方便使用不同类型的文件，argparse 模块提供了 FileType 工厂类，该类接受 ``mode=``, ``bufsize=``, "
+"``encoding=`` 和 ``errors=`` 等 :func:`open` 函数参数。 例如，``FileType('w')`` "
+"可被用来创建一个可写文件::"
 
 #: ../../library/argparse.rst:1046
 msgid ""
 "``type=`` can take any callable that takes a single string argument and "
 "returns the converted value::"
-msgstr ""
+msgstr "``type=`` 可接受任意可调用对象，该对象应传入单个字符串参数并返回转换后的值::"
 
 #: ../../library/argparse.rst:1065
 msgid ""
@@ -1049,19 +1052,25 @@ msgid ""
 "line is parsed, argument values will be checked, and an error message will "
 "be displayed if the argument was not one of the acceptable values::"
 msgstr ""
+"某些命令行参数应当从一组受限值中选择。 这可通过将一个容器对象作为 *choices* 关键字参数传给 "
+":meth:`~ArgumentParser.add_argument` 来处理。 "
+"当执行命令行解析时，参数值将被检查，如果参数不是可接受的值之一就将显示错误消息::"
 
 #: ../../library/argparse.rst:1097
 msgid ""
 "Note that inclusion in the *choices* container is checked after any type_ "
 "conversions have been performed, so the type of the objects in the *choices*"
 " container should match the type_ specified::"
 msgstr ""
+"请注意 *choices* 容器包含的内容会在执行任意 type_ 转换之后被检查，因此 *choices* 容器中对象的类型应当与指定的 type_ "
+"相匹配::"
 
 #: ../../library/argparse.rst:1109
 msgid ""
 "Any container can be passed as the *choices* value, so :class:`list` "
 "objects, :class:`set` objects, and custom containers are all supported."
 msgstr ""
+"任何容器都可作为 *choices* 值传入，因此 :class:`list` 对象，:class:`set` 对象以及自定义容器都是受支持的。"
 
 #: ../../library/argparse.rst:1114
 msgid "required"
@@ -1074,19 +1083,24 @@ msgid ""
 "command line. To make an option *required*, ``True`` can be specified for "
 "the ``required=`` keyword argument to :meth:`~ArgumentParser.add_argument`::"
 msgstr ""
+"通常，:mod:`argparse` 模块会认为 ``-f`` 和 ``--bar`` 等旗标是指明 *可选的* 参数，它们总是可以在命令行中被忽略。 "
+"要让一个选项成为 *必需的*，则可以将 ``True`` 作为 ``required=`` 关键字参数传给 "
+":meth:`~ArgumentParser.add_argument`::"
 
 #: ../../library/argparse.rst:1129
 msgid ""
 "As the example shows, if an option is marked as ``required``, "
 ":meth:`~ArgumentParser.parse_args` will report an error if that option is "
 "not present at the command line."
 msgstr ""
+"如这个例子所示，如果一个选项被标记为 "
+"``required``，则当该选项未在命令行中出现时，:meth:`~ArgumentParser.parse_args` 将会报告一个错误。"
 
 #: ../../library/argparse.rst:1135
 msgid ""
 "Required options are generally considered bad form because users expect "
 "*options* to be *optional*, and thus they should be avoided when possible."
-msgstr ""
+msgstr "必需的选项通常被认为是不适宜的，因为用户会预期 *options* 都是 *可选的*，因此在可能的情况下应当避免使用它们。"
 
 #: ../../library/argparse.rst:1140
 msgid "help"
