Decorator.__new__() - Code Metrics - j340m3/python-msquaredc - Measure and Improve Code Quality continuously with Scrutinizer

Decorator.new() B
last analyzed 2018-04-10 22:12 UTC

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Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	7
c	1
b	0
f	0
dl	0
loc	16
rs	7.3333

import os
import threading

import yaml

MULTITHREADING = True
lock = threading.Lock()


class SingletonDecorator:
    def __init__(self, klass):
        self.klass = klass
        self.instance = None

    def __call__(self, *args, **kwds):
        if self.instance is None:
            self.instance = self.klass(*args, **kwds)
        return self.instance


def yaml_load(filename):
    try:
        with open(filename + ".old", "r") as file:
            res = yaml.load(file)
            return res
    except FileNotFoundError:
        try:
            with open(filename, "r") as file:
                res = yaml.load(file)
                return res
        except FileNotFoundError:
            return None


def yaml_write(content, filename):
    rename = True
    try:
        os.rename(filename, filename + ".old")
    except FileNotFoundError:
        rename = False
    try:
        with open(filename, "w+") as file:
            yaml.dump(content, file)
    except IOError:
        if rename:
            os.rename(filename + ".old", filename)
    else:
        if rename:
            os.remove(filename + ".old")
    print("finished")


@SingletonDecorator
class PersistableStack(object):
    def __init__(self, filename, multithreading=True):
        self.filename = filename
        self.thread = None
        self.values = None
        self.multithreading = multithreading

    def getValues(self):
        res = yaml_load(self.filename)
        if res is not None:
            self.values = res
        else:
            self.values = []

    def push(self, element):
        if not self.values:
            self.getValues()
        self.values.append(element)
        self.persist(yaml_write, self.values, self.filename)

    def pop(self):
        if not self.values:
            self.getValues()
        res = self.values.pop()
        self.persist(yaml_write, self.values, self.filename)
        return res

    def persist(self, func, *args):
        if self.multithreading:
            with lock:
                self.thread = threading.Thread(target=func, args=args)
                self.thread.daemon = True
                self.thread.start()
        else:
            func(*args)

    @property
    def count(self):
        return len(self.values)


class Decorator:
    def __new__(self, *args, **kwargs):
        self.decoree = None
        self.newargs = args
        self.newkwargs = kwargs
        self.decorators = {}
        if "decorators" in self.newkwargs:
            self.decorators = self.newkwargs["decorators"]
        if args:
            if isinstance(args[0], type):
                self.decoree = args[0]
            if callable(args[0]):
                if len(args) == 1 and len(kwargs) == 0:
                    return args[0]
            else:
                pass
        return self

    def __init__(self, *args, **kwargs):
        self.decoree = None
        self.initargs = args
        self.initkwargs = kwargs
        if args and callable(args[0]):
            self.decoree = args[0]

    def __call__(self, *args, **kwargs):
        if args and callable(args[0]):
            self.decoree = args[0]
            if isinstance(self.decoree, type):
                return self.create_wrapping_class(self.decoree, self.decorators)
            return self.decoree
        elif self.decoree:
            if isinstance(self.decoree, type):
                return self.create_wrapping_class(args[0], self.decorators)(*args, **kwargs)
            return self.decoree(*args, **kwargs)

    @staticmethod
    def create_wrapping_class(cls, decorators):
        from six import with_metaclass

        class MetaNewClass(type):
            def __repr__(self):
                return repr(cls)

        class NewClass(with_metaclass(MetaNewClass, cls)):
            def __init__(self, *args, **kwargs):
                self.__instance = cls(*args, **kwargs)

            """This is the overwritten class"""
            def __getattribute__(self, attr_name):
                if attr_name == "__class__":
                    return cls
                obj = super(NewClass, self).__getattribute__(attr_name)
                if hasattr(obj, '__call__'):
                    if attr_name in decorators:
                        for decorator in decorators:
                            obj = decorator(obj)
                    elif "*" in decorators:
                        for decorator in decorators:
                            obj = decorator(obj)
                    return obj
                return obj

            def __repr__(self):
                return repr(self.__instance)

        return NewClass


def lcs(a, b):
    lengths = [[0 for j in range(len(b) + 1)] for i in range(len(a) + 1)]
    # row 0 and column 0 are initialized to 0 already
    for i, x in enumerate(a):
        for j, y in enumerate(b):
            if x == y:
                lengths[i + 1][j + 1] = lengths[i][j] + 1
            else:
                lengths[i + 1][j + 1] = max(lengths[i + 1][j], lengths[i][j + 1])
    # read the substring out from the matrix
    result = ""
    x, y = len(a), len(b)
    while x != 0 and y != 0:
        if lengths[x][y] == lengths[x - 1][y]:
            x -= 1
        elif lengths[x][y] == lengths[x][y - 1]:
            y -= 1
        else:
            assert a[x - 1] == b[y - 1]
            result = a[x - 1] + result
            x -= 1
            y -= 1
    return result


1			import os
2			import threading
3
4			import yaml
5
6			MULTITHREADING = True
7			lock = threading.Lock()
8
9
10			class SingletonDecorator:
11			def __init__(self, klass):
12			self.klass = klass
13			self.instance = None
14
15			def __call__(self, args, *kwds):
16			if self.instance is None:
17			self.instance = self.klass(args, *kwds)
18			return self.instance
19
20
21			def yaml_load(filename):
22			try:
23			with open(filename + ".old", "r") as file:
24			res = yaml.load(file)
25			return res
26			except FileNotFoundError:
27			try:
28			with open(filename, "r") as file:
29			res = yaml.load(file)
30			return res
31			except FileNotFoundError:
32			return None
33
34
35			def yaml_write(content, filename):
36			rename = True
37			try:
38			os.rename(filename, filename + ".old")
39			except FileNotFoundError:
40			rename = False
41			try:
42			with open(filename, "w+") as file:
43			yaml.dump(content, file)
44			except IOError:
45			if rename:
46			os.rename(filename + ".old", filename)
47			else:
48			if rename:
49			os.remove(filename + ".old")
50			print("finished")
51
52
53			@SingletonDecorator
54			class PersistableStack(object):
55			def __init__(self, filename, multithreading=True):
56			self.filename = filename
57			self.thread = None
58			self.values = None
59			self.multithreading = multithreading
60
61			def getValues(self):
62			res = yaml_load(self.filename)
63			if res is not None:
64			self.values = res
65			else:
66			self.values = []
67
68			def push(self, element):
69			if not self.values:
70			self.getValues()
71			self.values.append(element)
72			self.persist(yaml_write, self.values, self.filename)
73
74			def pop(self):
75			if not self.values:
76			self.getValues()
77			res = self.values.pop()
78			self.persist(yaml_write, self.values, self.filename)
79			return res
80
81			def persist(self, func, *args):
82			if self.multithreading:
83			with lock:
84			self.thread = threading.Thread(target=func, args=args)
85			self.thread.daemon = True
86			self.thread.start()
87			else:
88			func(*args)
89
90			@property
91			def count(self):
92			return len(self.values)
93
94
95			class Decorator:
96			def __new__(self, args, *kwargs):
97			self.decoree = None
98			self.newargs = args
99			self.newkwargs = kwargs
100			self.decorators = {}
101			if "decorators" in self.newkwargs:
102			self.decorators = self.newkwargs["decorators"]
103			if args:
104			if isinstance(args[0], type):
105			self.decoree = args[0]
106			if callable(args[0]):
107			if len(args) == 1 and len(kwargs) == 0:
108			return args[0]
109			else:
110			pass
111			return self
112
113			def __init__(self, args, *kwargs):
114			self.decoree = None
115			self.initargs = args
116			self.initkwargs = kwargs
117			if args and callable(args[0]):
118			self.decoree = args[0]
119
120			def __call__(self, args, *kwargs):
121			if args and callable(args[0]):
122			self.decoree = args[0]
123			if isinstance(self.decoree, type):
124			return self.create_wrapping_class(self.decoree, self.decorators)
125			return self.decoree
126			elif self.decoree:
127			if isinstance(self.decoree, type):
128			return self.create_wrapping_class(args[0], self.decorators)(args, *kwargs)
129			return self.decoree(args, *kwargs)
130
131			@staticmethod
132			def create_wrapping_class(cls, decorators):
133			from six import with_metaclass
134
135			class MetaNewClass(type):
136			def __repr__(self):
137			return repr(cls)
138
139			class NewClass(with_metaclass(MetaNewClass, cls)):
140			def __init__(self, args, *kwargs):
141			self.__instance = cls(args, *kwargs)
142
143			"""This is the overwritten class"""
144			def __getattribute__(self, attr_name):
145			if attr_name == "__class__":
146			return cls
147			obj = super(NewClass, self).__getattribute__(attr_name)
148			if hasattr(obj, '__call__'):
149			if attr_name in decorators:
150			for decorator in decorators:
151			obj = decorator(obj)
152			elif "*" in decorators:
153			for decorator in decorators:
154			obj = decorator(obj)
155			return obj
156			return obj
157
158			def __repr__(self):
159			return repr(self.__instance)
160
161			return NewClass
162
163
164			def lcs(a, b):
165			lengths = [[0 for j in range(len(b) + 1)] for i in range(len(a) + 1)]
166			# row 0 and column 0 are initialized to 0 already
167			for i, x in enumerate(a):
168			for j, y in enumerate(b):
169			if x == y:
170			lengths[i + 1][j + 1] = lengths[i][j] + 1
171			else:
172			lengths[i + 1][j + 1] = max(lengths[i + 1][j], lengths[i][j + 1])
173			# read the substring out from the matrix
174			result = ""
175			x, y = len(a), len(b)
176			while x != 0 and y != 0:
177			if lengths[x][y] == lengths[x - 1][y]:
178			x -= 1
179			elif lengths[x][y] == lengths[x][y - 1]:
180			y -= 1
181			else:
182			assert a[x - 1] == b[y - 1]
183			result = a[x - 1] + result
184			x -= 1
185			y -= 1
186			return result
187

j340m3 / python-msquaredc

Decorator.__new__() B last analyzed 2018-04-10 22:12 UTC

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Decorator.new() B
last analyzed 2018-04-10 22:12 UTC