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...getattr to find the new value; all could be replaced with the new syntax, the 15 where getattr is also involved would show a particular increase in clarity; c.5 uses which would have to stay as "getattr" because they are calls of a variable named "getattr" whose default value is the builtin "getattr"; c.5 uses of the 2-argument form, inside a try/except block which catches AttributeError and uses a default value instead; these could use 2-argument ...
...getattr(self.__contained, name) # Everything else gets wrapped missing = [] which = self.__contained obj = getattr(which, name, missing) if obj is missing: which = self.__container obj = getattr(which, name, missing) if obj is missing: raise AttributeError, name of = getattr(obj, '__of__', missing) if of is not missing: return of(self) elif type(obj) == types.MethodType...
...getattr($value, $attrs[0]) y = getattr($value, $attrs[1]) except AttributeError: FAIL [7] This: match ClsName(a=x, b=y): translates to: if not isinstance($value, ClsName): FAIL try: x = $value.a y = $value.b except AttributeError: FAIL [8] This: match ClsName(x, a=y): translates to: if not isinstance($value, ClsName): FAIL $attrs = ClsName.__match_args__ if len($attr) < 1: raise TypeError(...) $positional_names = $attrs[:1] try: x = getatt...
...getattr' or 'dot' operator in a field expression. The dot operator allows an attribute of an input value to be specified as the field value. Unlike some other programming languages, you cannot embed arbitrary expressions in format strings. This is by design - the types of expressions that you can use is deliberately limited. Only two operators are supported: the '.' (getattr) operator, and the '[]' (getitem) operator. The reason for allowing these operators is that they don't normally have s...
...getattr(x, "__reduce_ex__", None) if reductor: rv = reductor(4) else: reductor = getattr(x, "__reduce__", None) if reductor: rv = reductor() else: raise Error( "un(deep)copyable object of type %s" % cls) Improved: if reductor := dispatch_table.get(cls): rv = reductor(x) elif reductor := getattr(x, "__reduce_ex__", None): rv = reductor(4) elif reductor := getattr(x, "__reduce__", None): rv = reductor() ...
...getattr(obj, '_optinfo', {})) _optinfo.update(getattr(obj, '_basedict', {})) if not isinstance(obj, MaskedArray): _optinfo.update(getattr(obj, '__dict__', {})) After: _optinfo = {} _optinfo |= getattr(obj, '_optinfo', {}) _optinfo |= getattr(obj, '_basedict', {}) if not isinstance(obj, MaskedArray): _optinfo |= getattr(obj, '__dict__', {}) praw/internal.py Before: data = {'name': six.text_type(user), 'type': relationship} data.update(kwargs) After: data = {'name': six.text_type(u...
...getattr(types, t.__name__) is t The types 'class', 'instance method' and 'dict-proxy' have already been renamed to the valid Python identifiers 'classobj', 'instancemethod' and 'dictproxy', making this possible. Backward compatibility Because of their widespread use it is not planned to actually remove the long names from the types module in some future version. However, the long names should be changed in documentation and library sources to discourage their use in new code. Reference Imp...
...getattr__(self,name, getattr=getattr): """Inherit all other methods from the underlying stream. """ return getattr(self.stream,name) class StreamReader(Codec): def __init__(self,stream,errors='strict'): """Creates a StreamReader instance. stream must be a file-like object open for reading (binary) data. The StreamReader may implement different error handling schemes by providing the errors keyword argument. ...
...getattr(obj, self._name) def __set__(self, obj, value): try: getattr(obj, self._name) except AttributeError: setattr(obj, self._name, value) else: raise AttributeError("Attribute already set") def set(self, obj, value): setattr(obj, self._name, value) def __delete__(self, obj): delattr(obj, self._name) Note that unlike the original implementation, the private attribute name is stable since it uses the nam...
...getattr(type(mgr), "__suspend__", lambda: None) resume = getattr(type(mgr), "__resume__", lambda: None) ### --- END OF NEW STUFF --- value = type(mgr).__enter__(mgr) exc = True try: try: VAR = value # Only if "as VAR" is present PARTIAL-BLOCK-1 ### --- NEW STUFF --- suspend(mgr) tmp = yield foo resume(mgr) f(tmp) ### --- END OF NEW STUFF --- PARTIAL-BLOCK-2 except: exc = False if not exit(mgr, *s...
...getattr(sys, 'breakpointhook', missing) if hook is missing: raise RuntimeError('lost sys.breakpointhook') return hook(*args, **kws) # In sys. def breakpointhook(*args, **kws): import importlib, os, warnings hookname = os.getenv('PYTHONBREAKPOINT') if hookname is None or len(hookname) == 0: hookname = 'pdb.set_trace' elif hookname == '0': return None modname, dot, funcname = hookname.rpartition('.') if dot == '': modname = 'builtins...
...getattr(obj, '__freeze__', None) if freezer: return freezer() raise TypeError('object is not freezable')`` Here are some code samples which show the intended semantics: class xset(set): def __freeze__(self): return frozenset(self) class xlist(list): def __freeze__(self): return tuple(self) class imdict(dict): def __hash__(self): return id(self) def _immutable(self, *args, **kws): raise TypeError('object is immutable...
...getattr: class Test: def __init__(self, param: int) -> None: self.myfield = param def mymethod(self, val: int) -> str: ... a: Literal["myfield"] = "myfield" b: Literal["mymethod"] = "mymethod" c: Literal["blah"] = "blah" t = Test() reveal_type(getattr(t, a)) # Revealed type is 'int' reveal_type(getattr(t, b)) # Revealed type is 'Callable[[int], str]' getattr(t, c) # Error: No attribute named 'blah' in Test Note: See Interactions with Final for a pr...
...getattr, do not perform normalization: >>> class Test: ... def finalize(self): ... print('OK') ... >>> Test().finalize() OK >>> Test().finalize() OK >>> getattr(Test(), 'finalize') Traceback (most recent call last): ... AttributeError: 'Test' object has no attribute 'finalize' This also applies when importing: import finalization performs normalization, and looks for a file named finalization.py (and other finalization.* files). importlib.import_mo...
...getattribute__, bear in mind that it is easy to cause infinite recursion: whenever __getattribute__ references an attribute of self (even self.__dict__!), it is called recursively. (This is similar to __setattr__, which gets called for all attribute assignments; __getattr__ can also suffer from this when it is carelessly written and references a non-existent attribute of self.) The correct way to get any attribute from self inside __getattribute__ is to call the base class's __getattrib...
...getattr__ based on the principle that __getattr__ is supposed to be invoked only after finding an appropriate attribute has failed. An implementation of __attr_XXX__ takes precedence over an implementation of __setattr__ in order to be consistent. The opposite choice seems fairly feasible also, however. The same goes for __del_y__. Proposed Implementation There is a new object type called an attribute access handler. Objects of this type have the following attributes: name (e.g. XXX, not __at...
...getattr(t, '__conform__', None) if conform is not None: result = conform(obj, protocol) if result is not None: return result # (c) then check if protocol.__adapt__ exists & likes obj adapt = getattr(type(protocol), '__adapt__', None) if adapt is not None: result = adapt(protocol, obj) if result is not None: return result except LiskovViolation: pass else: #...