How to use describe_rule method in localstack

Best Python code snippet using localstack_python

quiz_2.py

Source:quiz_2.py

...6    "rule_nb" is supposed to be an integer between 0 and 15.7    '''8    values = [int(d) for d in f'{rule_nb:04b}']9    return {(p // 2, p % 2): values[p] for p in range(4)}10def describe_rule(rule_nb):11    '''12    "rule_nb" is supposed to be an integer between 0 and 15.13    >>> describe_rule(4)14    The rule encoded by 4 is:  {(0, 0): 0, (0, 1): 1, (1, 0): 0, (1, 1): 0}15    <BLANKLINE>16    After 0 followed by 0, we draw 017    After 0 followed by 1, we draw 118    After 1 followed by 0, we draw 019    After 1 followed by 1, we draw 020    >>> describe_rule(0)21    The rule encoded by 0 is:  {(0, 0): 0, (0, 1): 0, (1, 0): 0, (1, 1): 0}22    <BLANKLINE>23    After 0 followed by 0, we draw 024    After 0 followed by 1, we draw 025    After 1 followed by 0, we draw 026    After 1 followed by 1, we draw 027    >>> describe_rule(5)28    The rule encoded by 5 is:  {(0, 0): 0, (0, 1): 1, (1, 0): 0, (1, 1): 1}29    <BLANKLINE>30    After 0 followed by 0, we draw 031    After 0 followed by 1, we draw 132    After 1 followed by 0, we draw 033    After 1 followed by 1, we draw 134    >>> describe_rule(7)35    The rule encoded by 7 is:  {(0, 0): 0, (0, 1): 1, (1, 0): 1, (1, 1): 1}36    <BLANKLINE>37    After 0 followed by 0, we draw 038    After 0 followed by 1, we draw 139    After 1 followed by 0, we draw 140    After 1 followed by 1, we draw 141    >>> describe_rule(10)42    The rule encoded by 10 is:  {(0, 0): 1, (0, 1): 0, (1, 0): 1, (1, 1): 0}43    <BLANKLINE>44    After 0 followed by 0, we draw 145    After 0 followed by 1, we draw 046    After 1 followed by 0, we draw 147    After 1 followed by 1, we draw 048    >>> describe_rule(15)49    The rule encoded by 15 is:  {(0, 0): 1, (0, 1): 1, (1, 0): 1, (1, 1): 1}50    <BLANKLINE>51    After 0 followed by 0, we draw 152    After 0 followed by 1, we draw 153    After 1 followed by 0, we draw 154    After 1 followed by 1, we draw 155    '''56    rule = rule_encoded_by(rule_nb)57    print('The rule encoded by', rule_nb, 'is: ', rule)58    print()59    for i in rule.items():60        print(f'After {i[0][0]} followed by {i[0][1]}, we draw {i[1]}')61def draw_line(rule_nb, first, second, length):62    '''...

constraints.py

Source:constraints.py

...55		Serialize a description of this constraint. Sub-classes should 56		override `describe_rule` rather than this method.57		'''58		return ' '.join((59			'CONSTRAINT', self.name, self.describe_rule()60		))61	def describe_rule(self):62		'''Return a serialized description of this consraint rule.'''63		raise NotImplementedError()64	def serialize(self, values=None, name_policy=None):65		'''Serialize a reference to this constraint.'''66		return self.name67class CheckConstraint(Constraint):68	'''A generic `CHECK` constraint on a column or table.'''69	def __init__(self, error_message, condition_policy, name=None):70		'''71		Create a new check constraint. This should generally be done while 72		defining the attribute map of a model within it's decorator.73		::condition_policy A callable that will at some point be passed the74			host of this constraint to yeild a flag-like `Node`.75		::name The name of this constraint. If none is supplied, one will be76			automatically generated.77		'''78		super().__init__('check', error_message)79		self.condition_policy = condition_policy80		self.name = name81	def describe_rule(self):82		'''Serialize the policy-specified check for this constraint.'''83		from .tables import Table84		#	Resolve the policy and assert it's result is valid.85		if isinstance(self.host, Table):86			condition = nodeify(self.condition_policy(self.host.model_cls))87		else:88			condition = nodeify(self.condition_policy(self.host))89		if not issubclass(type(condition), MFlag):90			raise InvalidSchema((91				'Check constraint %s has non flag-like condition'92			)%self.name)93		94		#	Create and return the serialization. This is vulnerable to95		#	injection, but only from the caller itself.96		values = list()97		sql = condition.serialize(values)98		if not isinstance(condition, Unique):99			sql = ' '.join(('CHECK (', sql, ')'))100		return sql%(*("'%s'"%v for v in values),)101class PrimaryKeyConstraint(Constraint):102	'''A primary key constraint on a column.'''103	def __init__(self):104		super().__init__('pk')105	def describe_rule(self):106		return 'PRIMARY KEY'107class ForeignKeyConstraint(Constraint):108	'''A foreign key constraint on a column.'''109	def __init__(self, target):110		super().__init__('fk')111		self.target = target112	def describe_rule(self):113		return 'REFERENCES %s (%s)'%(114			self.target.table.name,115			self.target.name116		)117class NotNullConstraint(Constraint):118	'''A `NOT NULL` constraint on a column.'''119	def __init__(self, error_message='Required'):120		super().__init__('existance', error_message)121	def precheck_violation(self, model, value):122		return value is None123	def validator_info(self):124		return None125	126	def describe_rule(self):127		return ' '.join((128			'CHECK (', self.host.serialize(), 'IS NOT NULL)'129		))130class UniquenessConstraint(Constraint):131	'''A `UNIQUE` constraint on a column.'''132	def __init__(self, error_message='Must be unique'):133		super().__init__('uniqueness', error_message)134	135	def describe_rule(self):136		return 'UNIQUE'137class RangeConstraint(Constraint):138	'''A range constraint.'''139	def __init__(self, error_message, min_value=None, max_value=None):140		super().__init__('range', error_message)141		self.max_value, self.min_value = max_value, min_value142	def precheck_violation(self, model, value):143		return not ((self.max_value is None or value < self.max_value) and \144			(self.min_value is None or value >= self.min_value))145	def describe_rule(self):146		values = list()147		rule = True148		if self.max_value is not None:149			rule &= (self.host < self.max_value)150		if self.min_value is not None:151			rule &= (self.host >= self.min_value)152		sql = rule.serialize(values)153		return ' '.join((154			'CHECK (', sql%tuple(values), ')'155		))156	def validator_info(self):157		return {158			'max': self.max_value,159			'min': self.min_value160		}161class RegexConstraint(Constraint):162	'''A regular expression constraint.'''163	def __init__(self, error_message, regex, ignore_case=False, invert=False):164		super().__init__('format', error_message)165		self.regex = regex166		self.ignore_case, self.invert = ignore_case, invert167	def precheck_violation(self, model, value):168		return (value is not None) and (bool(re.match(self.regex, value)) == self.invert)169	170	def describe_rule(self):171		opr = '~'172		if self.ignore_case:173			opr = ''.join((opr, '*'))174		if self.invert:175			opr = ''.join(('!', opr))176		177		return ' '.join((178			'CHECK (', 179				self.host.name, opr, 180				''.join(("'", self.regex.replace("'", "\'"), "'")),181			')'182		))183	184	def validator_info(self):...

quiz2_test.py

Source:quiz2_test.py

...3# @Time    : 2019-03-03 22:574# @Author  : ZD Liu5from quiz_2 import *6def quiz2_test():7    describe_rule(3)8    describe_rule(4)9    describe_rule(11)10    describe_rule(14)11    describe_rule('')12    describe_rule(0)13    describe_rule('a')14    print(draw_line(3, 0, 0, 1))15    print(draw_line(3, 0, 0, 1))16    print(draw_line(3, 0, 0, 1))17    print(draw_line(3, 1, 0, 5))18    print(draw_line(4, 1, 0, 9))19    print(draw_line(4, 0, 1, 13))20    print(draw_line(11,1,0,16))21    print(draw_line(11, 1, 1, 19))22    print(draw_line(14, 0, 0,21))23    print(draw_line(15, 0,0,22))24    print(draw_line(4, 0, 1, 13))25    print(999)26    print(draw_line(-4, 0, 1, 13))27    print(draw_line(4, -1, 1, 13))...

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