python类PY2的实例源码

def as_const(self, eval_ctx=None):
        rv = self.value
        if PY2 and type(rv) is text_type and \
           self.environment.policies['compiler.ascii_str']:
            try:
                rv = rv.encode('ascii')
            except UnicodeError:
                pass
        return rv

def as_const(self, eval_ctx=None):
        rv = self.value
        if PY2 and type(rv) is text_type and \
           self.environment.policies['compiler.ascii_str']:
            try:
                rv = rv.encode('ascii')
            except UnicodeError:
                pass
        return rv