Python types.MethodType() Examples

def subscribe(func):
    '''
    Add a subscriber function to option events

    Parameters
    ----------
    func : callable
        A callable object that takes two parameters: key and value.
        This function is called with the name and value of any option
        that is set.

    Returns
    -------
    None

    '''
    if isinstance(func, types.MethodType):
        obj = six.get_method_self(func)
        func = six.get_method_function(func)
        _subscribers[func] = (weakref.ref(func), weakref.ref(obj))
    else:
        _subscribers[func] = (weakref.ref(func), None) 

def __init__(self, environment, parent, name, blocks):
        self.parent = parent
        self.vars = {}
        self.environment = environment
        self.eval_ctx = EvalContext(self.environment, name)
        self.exported_vars = set()
        self.name = name

        # create the initial mapping of blocks.  Whenever template inheritance
        # takes place the runtime will update this mapping with the new blocks
        # from the template.
        self.blocks = dict((k, [v]) for k, v in iteritems(blocks))

        # In case we detect the fast resolve mode we can set up an alias
        # here that bypasses the legacy code logic.
        if self._fast_resolve_mode:
            self.resolve_or_missing = MethodType(resolve_or_missing, self) 

def create_file_logger(root, name, file_name="log.txt", timestamp_format="", debug=False):
    file_api = FileAPI(root)
    timestamp = ""
    if timestamp_format:
        timestamp = datetime.now().strftime(timestamp_format)
    else:
        timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")

    folder = name + "_" + timestamp
    # prepare folder and file
    with file_api.open_with_mkdir(folder + "/" + file_name) as f:
        f.write("".encode("utf-8"))

    log_root = os.path.join(root, folder)
    logger = create_logger(name, debug)
    fh = FileHandler(os.path.join(log_root, file_name), encoding="utf-8")
    fh.setLevel(_bool_2_level(debug))
    logger.addHandler(fh)

    # add close method to release resource
    logger.close = types.MethodType(__close, logger)
    return logger, log_root 

def forEachLine(filePath, parser):
    """
        For each line of the file call the parser, at the end call the finalize method of the parser if it`s defined.
    """
    try:
        f = open(os.path.normpath(filePath), 'r')
    except Exception:
        sys.stderr.write('Cannot open a file for reading: ' + filePath)
        raise
    else:
        try:
            for line in f:
                parser.parse(noNewLine(line))
        except Exception:
            sys.stderr.write('Cannot read from file: ' + filePath)
            raise
        finally:
            f.close()
    try:
        if isinstance(parser.finalize, types.MethodType):
            parser.finalize()
    except Exception:
        pass

    return parser 

def validate_error_func(self):
        if self.error_func:
            if isinstance(self.error_func, types.FunctionType):
                ismethod = 0
            elif isinstance(self.error_func, types.MethodType):
                ismethod = 1
            else:
                self.log.error("'p_error' defined, but is not a function or method")
                self.error = True
                return

            eline = self.error_func.__code__.co_firstlineno
            efile = self.error_func.__code__.co_filename
            module = inspect.getmodule(self.error_func)
            self.modules.add(module)

            argcount = self.error_func.__code__.co_argcount - ismethod
            if argcount != 1:
                self.log.error('%s:%d: p_error() requires 1 argument', efile, eline)
                self.error = True

    # Get the tokens map 

def validate_error_func(self):
        if self.error_func:
            if isinstance(self.error_func,types.FunctionType):
                ismethod = 0
            elif isinstance(self.error_func, types.MethodType):
                ismethod = 1
            else:
                self.log.error("'p_error' defined, but is not a function or method")
                self.error = 1
                return

            eline = func_code(self.error_func).co_firstlineno
            efile = func_code(self.error_func).co_filename
            module = inspect.getmodule(self.error_func)
            self.modules[module] = 1

            argcount = func_code(self.error_func).co_argcount - ismethod
            if argcount != 1:
                self.log.error("%s:%d: p_error() requires 1 argument",efile,eline)
                self.error = 1

    # Get the tokens map 

def get_pfunctions(self):
        p_functions = []
        for name, item in self.pdict.items():
            if not name.startswith('p_'): continue
            if name == 'p_error': continue
            if isinstance(item,(types.FunctionType,types.MethodType)):
                line = func_code(item).co_firstlineno
                module = inspect.getmodule(item)
                p_functions.append((line,module,name,item.__doc__))

        # Sort all of the actions by line number
        p_functions.sort()
        self.pfuncs = p_functions


    # Validate all of the p_functions 

def validate_error_func(self):
        if self.error_func:
            if isinstance(self.error_func, types.FunctionType):
                ismethod = 0
            elif isinstance(self.error_func, types.MethodType):
                ismethod = 1
            else:
                self.log.error("'p_error' defined, but is not a function or method")
                self.error = True
                return

            eline = self.error_func.__code__.co_firstlineno
            efile = self.error_func.__code__.co_filename
            module = inspect.getmodule(self.error_func)
            self.modules.add(module)

            argcount = self.error_func.__code__.co_argcount - ismethod
            if argcount != 1:
                self.log.error('%s:%d: p_error() requires 1 argument', efile, eline)
                self.error = True

    # Get the tokens map 

def bind_method(cls, name, func):
    """Bind a method to class, python 2 and python 3 compatible.

    Parameters
    ----------

    cls : type
        class to receive bound method
    name : basestring
        name of method on class instance
    func : function
        function to be bound as method

    Returns
    -------
    None
    """
    # only python 2 has an issue with bound/unbound methods
    if not PY3:
        setattr(cls, name, types.MethodType(func, None, cls))
    else:
        setattr(cls, name, func) 

def api_view_serializer_class_getter(serializer_class_getter):

    def _get_serializer_class(self):
        return serializer_class_getter()

    def _get_serializer(self, *args, **kwargs):
        serializer_class = self.get_serializer_class()
        return serializer_class(*args, **kwargs)

    def decorator(func):
        if not hasattr(func, 'cls'):
            raise Exception(
                '@api_view_serializer_class_getter can only decorate'
                ' @api_view decorated functions')
        apiview_cls = func.cls
        apiview_cls.get_serializer_class = types.MethodType(
            _get_serializer_class,
            apiview_cls)
        if not hasattr(apiview_cls, 'get_serializer'):
            # In case get_serializer() method is missing.
            apiview_cls.get_serializer = types.MethodType(
                _get_serializer,
                apiview_cls)
        return func
    return decorator 

def bind_method(cls, name, func):
    """Bind a method to class, python 2 and python 3 compatible.

    Parameters
    ----------

    cls : type
        class to receive bound method
    name : basestring
        name of method on class instance
    func : function
        function to be bound as method

    Returns
    -------
    None
    """
    # only python 2 has an issue with bound/unbound methods
    if not PY3:
        setattr(cls, name, types.MethodType(func, None, cls))
    else:
        setattr(cls, name, func) 

def get_pfunctions(self):
        p_functions = []
        for name, item in self.pdict.items():
            if not name.startswith('p_') or name == 'p_error':
                continue
            if isinstance(item, (types.FunctionType, types.MethodType)):
                line = getattr(item, 'co_firstlineno', item.__code__.co_firstlineno)
                module = inspect.getmodule(item)
                p_functions.append((line, module, name, item.__doc__))

        # Sort all of the actions by line number; make sure to stringify
        # modules to make them sortable, since `line` may not uniquely sort all
        # p functions
        p_functions.sort(key=lambda p_function: (
            p_function[0],
            str(p_function[1]),
            p_function[2],
            p_function[3]))
        self.pfuncs = p_functions

    # Validate all of the p_functions 

def create_bound_method(func, obj):
        return types.MethodType(func, obj, obj.__class__) 

def _form_master_re(relist, reflags, ldict, toknames):
    if not relist:
        return []
    regex = '|'.join(relist)
    try:
        lexre = re.compile(regex, reflags)

        # Build the index to function map for the matching engine
        lexindexfunc = [None] * (max(lexre.groupindex.values()) + 1)
        lexindexnames = lexindexfunc[:]

        for f, i in lexre.groupindex.items():
            handle = ldict.get(f, None)
            if type(handle) in (types.FunctionType, types.MethodType):
                lexindexfunc[i] = (handle, toknames[f])
                lexindexnames[i] = f
            elif handle is not None:
                lexindexnames[i] = f
                if f.find('ignore_') > 0:
                    lexindexfunc[i] = (None, None)
                else:
                    lexindexfunc[i] = (None, toknames[f])

        return [(lexre, lexindexfunc)], [regex], [lexindexnames]
    except Exception:
        m = int(len(relist)/2)
        if m == 0:
            m = 1
        llist, lre, lnames = _form_master_re(relist[:m], reflags, ldict, toknames)
        rlist, rre, rnames = _form_master_re(relist[m:], reflags, ldict, toknames)
        return (llist+rlist), (lre+rre), (lnames+rnames)

# -----------------------------------------------------------------------------
# def _statetoken(s,names)
#
# Given a declaration name s of the form "t_" and a dictionary whose keys are
# state names, this function returns a tuple (states,tokenname) where states
# is a tuple of state names and tokenname is the name of the token.  For example,
# calling this with s = "t_foo_bar_SPAM" might return (('foo','bar'),'SPAM')
# ----------------------------------------------------------------------------- 

def decorator(cls, cls_func: Callable) -> Callable:
        def _wrapper(*args: Any, **kwargs: Any) -> Callable:
            def wrapper(func: Callable) -> Callable:
                @functools.wraps(func)
                async def _decorator(obj: Any, *a: Any, **kw: Any) -> Any:
                    if not getattr(_decorator, START_ATTRIBUTE, None):
                        return await func(obj, *a, **kw)

                    setattr(_decorator, START_ATTRIBUTE, False)
                    if not cls.context.get(obj, None):
                        if getattr(obj, "context", None):
                            cls.context[obj] = obj.context
                        else:
                            cls.context[obj] = {}
                        cls.context[obj].update({i: getattr(obj, i) for i in dir(obj) if not callable(i) and not i.startswith("__") and not isinstance(getattr(obj, i), types.MethodType)})
                    context = cls.context[obj]
                    obj.context = context
                    start_func = await cls_func(cls, obj, context, func, *args, **kwargs)
                    return start_func

                setattr(_decorator, FUNCTION_ATTRIBUTE, True)
                return _decorator

            if not kwargs and len(args) == 1 and callable(args[0]):
                func = args[0]
                args = ()
                return wrapper(func)
            else:
                return wrapper
        return _wrapper 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def create_bound_method(func, obj):
        return types.MethodType(func, obj, obj.__class__) 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def is_internal_attribute(obj, attr):
    """Test if the attribute given is an internal python attribute.  For
    example this function returns `True` for the `func_code` attribute of
    python objects.  This is useful if the environment method
    :meth:`~SandboxedEnvironment.is_safe_attribute` is overridden.

    >>> from jinja2.sandbox import is_internal_attribute
    >>> is_internal_attribute(str, "mro")
    True
    >>> is_internal_attribute(str, "upper")
    False
    """
    if isinstance(obj, types.FunctionType):
        if attr in UNSAFE_FUNCTION_ATTRIBUTES:
            return True
    elif isinstance(obj, types.MethodType):
        if attr in UNSAFE_FUNCTION_ATTRIBUTES or \
           attr in UNSAFE_METHOD_ATTRIBUTES:
            return True
    elif isinstance(obj, type):
        if attr == 'mro':
            return True
    elif isinstance(obj, (types.CodeType, types.TracebackType, types.FrameType)):
        return True
    elif isinstance(obj, types.GeneratorType):
        if attr in UNSAFE_GENERATOR_ATTRIBUTES:
            return True
    elif hasattr(types, 'CoroutineType') and isinstance(obj, types.CoroutineType):
        if attr in UNSAFE_COROUTINE_ATTRIBUTES:
            return True
    elif hasattr(types, 'AsyncGeneratorType') and isinstance(obj, types.AsyncGeneratorType):
        if attr in UNSAFE_ASYNC_GENERATOR_ATTRIBUTES:
            return True
    return attr.startswith('__') 

def inspect_format_method(callable):
    if not isinstance(callable, (types.MethodType,
                                 types.BuiltinMethodType)) or \
       callable.__name__ not in ('format', 'format_map'):
        return None
    obj = callable.__self__
    if isinstance(obj, string_types):
        return obj 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def create_bound_method(func, obj):
        return types.MethodType(func, obj, obj.__class__) 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def create_bound_method(func, obj):
        return types.MethodType(func, obj, obj.__class__) 

def create_unbound_method(func, cls):
        return types.MethodType(func, None, cls) 

def create_bound_method(func, obj):
        return types.MethodType(func, obj, obj.__class__) 

def _form_master_re(relist, reflags, ldict, toknames):
    if not relist:
        return []
    regex = '|'.join(relist)
    try:
        lexre = re.compile(regex, reflags)

        # Build the index to function map for the matching engine
        lexindexfunc = [None] * (max(lexre.groupindex.values()) + 1)
        lexindexnames = lexindexfunc[:]

        for f, i in lexre.groupindex.items():
            handle = ldict.get(f, None)
            if type(handle) in (types.FunctionType, types.MethodType):
                lexindexfunc[i] = (handle, toknames[f])
                lexindexnames[i] = f
            elif handle is not None:
                lexindexnames[i] = f
                if f.find('ignore_') > 0:
                    lexindexfunc[i] = (None, None)
                else:
                    lexindexfunc[i] = (None, toknames[f])

        return [(lexre, lexindexfunc)], [regex], [lexindexnames]
    except Exception:
        m = int(len(relist)/2)
        if m == 0:
            m = 1
        llist, lre, lnames = _form_master_re(relist[:m], reflags, ldict, toknames)
        rlist, rre, rnames = _form_master_re(relist[m:], reflags, ldict, toknames)
        return (llist+rlist), (lre+rre), (lnames+rnames)

# -----------------------------------------------------------------------------
# def _statetoken(s,names)
#
# Given a declaration name s of the form "t_" and a dictionary whose keys are
# state names, this function returns a tuple (states,tokenname) where states
# is a tuple of state names and tokenname is the name of the token.  For example,
# calling this with s = "t_foo_bar_SPAM" might return (('foo','bar'),'SPAM')
# ----------------------------------------------------------------------------- 

def is_internal_attribute(obj, attr):
    """Test if the attribute given is an internal python attribute.  For
    example this function returns `True` for the `func_code` attribute of
    python objects.  This is useful if the environment method
    :meth:`~SandboxedEnvironment.is_safe_attribute` is overridden.

    >>> from jinja2.sandbox import is_internal_attribute
    >>> is_internal_attribute(str, "mro")
    True
    >>> is_internal_attribute(str, "upper")
    False
    """
    if isinstance(obj, types.FunctionType):
        if attr in UNSAFE_FUNCTION_ATTRIBUTES:
            return True
    elif isinstance(obj, types.MethodType):
        if attr in UNSAFE_FUNCTION_ATTRIBUTES or \
           attr in UNSAFE_METHOD_ATTRIBUTES:
            return True
    elif isinstance(obj, type):
        if attr == 'mro':
            return True
    elif isinstance(obj, (types.CodeType, types.TracebackType, types.FrameType)):
        return True
    elif isinstance(obj, types.GeneratorType):
        if attr in UNSAFE_GENERATOR_ATTRIBUTES:
            return True
    elif hasattr(types, 'CoroutineType') and isinstance(obj, types.CoroutineType):
        if attr in UNSAFE_COROUTINE_ATTRIBUTES:
            return True
    elif hasattr(types, 'AsyncGeneratorType') and isinstance(obj, types.AsyncGeneratorType):
        if attr in UNSAFE_ASYNC_GENERATOR_ATTRIBUTES:
            return True
    return attr.startswith('__')