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)
python类print_help()的实例源码
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
def _help_callback(self, value):
if value:
self.print_help()
sys.exit(0)
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)
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)
