成功解决ModuleNotFoundError: No module named engine

成功解决ModuleNotFoundError: No module named 'engine'

 

 

目录

解决问题

解决思路

解决方法


 

 

 

解决问题

ModuleNotFoundError: No module named 'engine'

 

 

解决思路

找不到模块错误:没有名为“engine”的模块

 

 

解决方法

相关文章
Py之pyttsx:pyttsx/pyttsx3的简介、安装、使用方法之详细攻略

def init Found at: pyttsx.__init__

def init(driverName=None, debug=False):
    '''
    Constructs a new TTS engine instance or reuses the existing instance for
    the driver name.
    
    @param driverName: Name of the platform specific driver to use. If
    None, selects the default driver for the operating system.
    @type: str
    @param debug: Debugging output enabled or not
    @type debug: bool
    @return: Engine instance
    @rtype: L{engine.Engine}
    '''
    try:
        eng = _activeEngines[driverName]
    except KeyError:
        eng = Engine(driverName, debug)
        _activeEngines[driverName] = eng
    return eng


class WeakValueDictionary(collections.MutableMapping):
    """Mapping class that references values weakly.

    Entries in the dictionary will be discarded when no strong
    reference to the value exists anymore
    """
    # We inherit the constructor without worrying about the input
    # dictionary; since it uses our .update() method, we get the right
    # checks (if the other dictionary is a WeakValueDictionary,
    # objects are unwrapped on the way out, and we always wrap on the
    # way in).

    def __init__(*args, **kw):
        if not args:
            raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
                            "object needs an argument")
        self, *args = args
        if len(args) > 1:
            raise TypeError('expected at most 1 arguments, got %d' % len(args))
        def remove(wr, selfref=ref(self), _atomic_removal=_remove_dead_weakref):
            self = selfref()
            if self is not None:
                if self._iterating:
                    self._pending_removals.append(wr.key)
                else:
                    # Atomic removal is necessary since this function
                    # can be called asynchronously by the GC
                    _atomic_removal(d, wr.key)
        self._remove = remove
        # A list of keys to be removed
        self._pending_removals = []
        self._iterating = set()
        self.data = d = {}
        self.update(*args, **kw)

    def _commit_removals(self):
        l = self._pending_removals
        d = self.data
        # We shouldn't encounter any KeyError, because this method should
        # always be called *before* mutating the dict.
        while l:
            key = l.pop()
            _remove_dead_weakref(d, key)

    def __getitem__(self, key):
        if self._pending_removals:
            self._commit_removals()
        o = self.data[key]()
        if o is None:
            raise KeyError(key)
        else:
            return o

    def __delitem__(self, key):
        if self._pending_removals:
            self._commit_removals()
        del self.data[key]

    def __len__(self):
        if self._pending_removals:
            self._commit_removals()
        return len(self.data)

    def __contains__(self, key):
        if self._pending_removals:
            self._commit_removals()
        try:
            o = self.data[key]()
        except KeyError:
            return False
        return o is not None

    def __repr__(self):
        return "<%s at %#x>" % (self.__class__.__name__, id(self))

    def __setitem__(self, key, value):
        if self._pending_removals:
            self._commit_removals()
        self.data[key] = KeyedRef(value, self._remove, key)

    def copy(self):
        if self._pending_removals:
            self._commit_removals()
        new = WeakValueDictionary()
        for key, wr in self.data.items():
            o = wr()
            if o is not None:
                new[key] = o
        return new

    __copy__ = copy

    def __deepcopy__(self, memo):
        from copy import deepcopy
        if self._pending_removals:
            self._commit_removals()
        new = self.__class__()
        for key, wr in self.data.items():
            o = wr()
            if o is not None:
                new[deepcopy(key, memo)] = o
        return new

    def get(self, key, default=None):
        if self._pending_removals:
            self._commit_removals()
        try:
            wr = self.data[key]
        except KeyError:
            return default
        else:
            o = wr()
            if o is None:
                # This should only happen
                return default
            else:
                return o

    def items(self):
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            for k, wr in self.data.items():
                v = wr()
                if v is not None:
                    yield k, v

    def keys(self):
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            for k, wr in self.data.items():
                if wr() is not None:
                    yield k

    __iter__ = keys

    def itervaluerefs(self):
        """Return an iterator that yields the weak references to the values.

        The references are not guaranteed to be 'live' at the time
        they are used, so the result of calling the references needs
        to be checked before being used.  This can be used to avoid
        creating references that will cause the garbage collector to
        keep the values around longer than needed.

        """
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            yield from self.data.values()

    def values(self):
        if self._pending_removals:
            self._commit_removals()
        with _IterationGuard(self):
            for wr in self.data.values():
                obj = wr()
                if obj is not None:
                    yield obj

    def popitem(self):
        if self._pending_removals:
            self._commit_removals()
        while True:
            key, wr = self.data.popitem()
            o = wr()
            if o is not None:
                return key, o

    def pop(self, key, *args):
        if self._pending_removals:
            self._commit_removals()
        try:
            o = self.data.pop(key)()
        except KeyError:
            o = None
        if o is None:
            if args:
                return args[0]
            else:
                raise KeyError(key)
        else:
            return o

    def setdefault(self, key, default=None):
        try:
            o = self.data[key]()
        except KeyError:
            o = None
        if o is None:
            if self._pending_removals:
                self._commit_removals()
            self.data[key] = KeyedRef(default, self._remove, key)
            return default
        else:
            return o

    def update(*args, **kwargs):
        if not args:
            raise TypeError("descriptor 'update' of 'WeakValueDictionary' "
                            "object needs an argument")
        self, *args = args
        if len(args) > 1:
            raise TypeError('expected at most 1 arguments, got %d' % len(args))
        dict = args[0] if args else None
        if self._pending_removals:
            self._commit_removals()
        d = self.data
        if dict is not None:
            if not hasattr(dict, "items"):
                dict = type({})(dict)
            for key, o in dict.items():
                d[key] = KeyedRef(o, self._remove, key)
        if len(kwargs):
            self.update(kwargs)

    def valuerefs(self):
        """Return a list of weak references to the values.

        The references are not guaranteed to be 'live' at the time
        they are used, so the result of calling the references needs
        to be checked before being used.  This can be used to avoid
        creating references that will cause the garbage collector to
        keep the values around longer than needed.

        """
        if self._pending_removals:
            self._commit_removals()
        return list(self.data.values())

 

 

 

 

 

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