proc PyErr_Format[E: PyBaseErrorObject](exc: E; msg: PyStrObject)

template checkArgNum(expected: int; name = "")

template checkArgNum(min, max: int; name = "")

template checkArgNumAtLeast(expected: int; name = "")

template checkArgNumAtMost(expected: int; name = "")

template errArgNum(argsLen, expected: int; name = "")

template errorIfNot(S; expect: string; pyObj: PyObject; methodName: string;
                    doIt: untyped = retIt)

template errorIfNot(S; pyObj: PyObject; methodName: string;
                    doIt: untyped = retIt)

template errorIfNotBool(pyObj: PyObject; methodName: string;
                        doIt: untyped = retIt)

template errorIfNotString(pyObj: untyped; methodName: string;
                          doIt: untyped = retIt)

template getIterableWithCheck(obj: PyObject): (PyObject, UnaryMethod)

template isThrownException(pyObj: PyObject): bool

template retIfExc(e: PyBaseErrorObject)

template retIfExc(e: PyObject)