本文整理汇总了Python中tornado.options.options.print_help方法的典型用法代码示例。如果您正苦于以下问题：Python options.print_help方法的具体用法？Python options.print_help怎么用？Python options.print_help使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类tornado.options.options的用法示例。
在下文中一共展示了options.print_help方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: print_help
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def print_help(self, file=None):
"""Prints all the command line options to stderr (or another file)."""
if file is None:
file = sys.stderr
print("Usage: %s [OPTIONS]" % sys.argv[0], file=file)
print("\nOptions:\n", file=file)
by_group = {}
for option in self._options.values():
by_group.setdefault(option.group_name, []).append(option)
for filename, o in sorted(by_group.items()):
if filename:
print("\n%s options:\n" % os.path.normpath(filename), file=file)
o.sort(key=lambda option: option.name)
for option in o:
# Always print names with dashes in a CLI context.
prefix = self._normalize_name(option.name)
if option.metavar:
prefix += "=" + option.metavar
description = option.help or ""
if option.default is not None and option.default != '':
description += " (default %s)" % option.default
lines = textwrap.wrap(description, 79 - 35)
if len(prefix) > 30 or len(lines) == 0:
lines.insert(0, '')
print(" --%-30s %s" % (prefix, lines[0]), file=file)
for line in lines[1:]:
print("%-34s %s" % (' ', line), file=file)
print(file=file) 示例2: _help_callback
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0) 示例3: print_help
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def print_help(file=None):
"""Prints all the command line options to stderr (or another file).
See `OptionParser.print_help`.
"""
return options.print_help(file) 示例4: print_help
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def print_help(self, file: TextIO = None) -> None:
"""Prints all the command line options to stderr (or another file)."""
if file is None:
file = sys.stderr
print("Usage: %s [OPTIONS]" % sys.argv[0], file=file)
print("\nOptions:\n", file=file)
by_group = {} # type: Dict[str, List[_Option]]
for option in self._options.values():
by_group.setdefault(option.group_name, []).append(option)
for filename, o in sorted(by_group.items()):
if filename:
print("\n%s options:\n" % os.path.normpath(filename), file=file)
o.sort(key=lambda option: option.name)
for option in o:
# Always print names with dashes in a CLI context.
prefix = self._normalize_name(option.name)
if option.metavar:
prefix += "=" + option.metavar
description = option.help or ""
if option.default is not None and option.default != "":
description += " (default %s)" % option.default
lines = textwrap.wrap(description, 79 - 35)
if len(prefix) > 30 or len(lines) == 0:
lines.insert(0, "")
print(" --%-30s %s" % (prefix, lines[0]), file=file)
for line in lines[1:]:
print("%-34s %s" % (" ", line), file=file)
print(file=file) 示例5: _help_callback
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def _help_callback(self, value: bool) -> None:
if value:
self.print_help()
sys.exit(0) 示例6: print_help
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def print_help(self, file=None):
"""Prints all the command line options to stderr (or another file)."""
if file is None:
file = sys.stderr
print("Usage: %s [OPTIONS]" % sys.argv[0], file=file)
print("\nOptions:\n", file=file)
by_group = {}
for option in self._options.values():
by_group.setdefault(option.group_name, []).append(option)
for filename, o in sorted(by_group.items()):
if filename:
print("\n%s options:\n" % os.path.normpath(filename), file=file)
o.sort(key=lambda option: option.name)
for option in o:
prefix = option.name
if option.metavar:
prefix += "=" + option.metavar
description = option.help or ""
if option.default is not None and option.default != '':
description += " (default %s)" % option.default
lines = textwrap.wrap(description, 79 - 35)
if len(prefix) > 30 or len(lines) == 0:
lines.insert(0, '')
print(" --%-30s %s" % (prefix, lines[0]), file=file)
for line in lines[1:]:
print("%-34s %s" % (' ', line), file=file)
print(file=file) 示例7: print_help
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def print_help(file: TextIO = None) -> None:
"""Prints all the command line options to stderr (or another file).
See `OptionParser.print_help`.
"""
return options.print_help(file) 示例8: parse_command_line
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def parse_command_line(self, args=None):
if args is None:
args = sys.argv
remaining = []
for i in xrange(1, len(args)):
# All things after the last option are command line arguments
if not args[i].startswith("-"):
remaining = args[i:]
break
if args[i] == "--":
remaining = args[i + 1:]
break
arg = args[i].lstrip("-")
name, equals, value = arg.partition("=")
name = name.replace('-', '_')
if not name in self:
print_help()
raise Error('Unrecognized command line option: %r' % name)
option = self[name]
if not equals:
if option.type == bool:
value = "true"
else:
raise Error('Option %r requires a value' % name)
option.parse(value)
if self.help:
print_help()
sys.exit(0)
# Set up log level and pretty console logging by default
if self.logging != 'none':
logging.getLogger().setLevel(getattr(logging, self.logging.upper()))
enable_pretty_logging()
return remaining 示例9: print_help
# 需要导入模块: from tornado.options import options [as 别名]
# 或者: from tornado.options.options import print_help [as 别名]
def print_help(self, file=sys.stdout):
"""Prints all the command line options to stdout."""
print >> file, "Usage: %s [OPTIONS]" % sys.argv[0]
print >> file, "\nOptions:\n"
by_group = {}
for option in self.itervalues():
by_group.setdefault(option.group_name, []).append(option)
for filename, o in sorted(by_group.items()):
if filename:
print >> file, "\n%s options:\n" % os.path.normpath(filename)
o.sort(key=lambda option: option.name)
for option in o:
prefix = option.name
if option.metavar:
prefix += "=" + option.metavar
description = option.help or ""
if option.default is not None and option.default != '':
description += " (default %s)" % option.default
lines = textwrap.wrap(description, 79 - 35)
if len(prefix) > 30 or len(lines) == 0:
lines.insert(0, '')
print >> file, " --%-30s %s" % (prefix, lines[0])
for line in lines[1:]:
print >> file, "%-34s %s" % (' ', line)
print >> file