Jython @property SyntaxError:输入不匹配"预期为CLASS
it1352
帮助1人
问题说明
我试图从Jython解释器中的文档运行此示例:
I tried to run this example from the docs in the Jython interpreter:
http://www.jython.org/docs/library/functions.html
class C(object):
def __init__(self):
self._x = None
@property
def x(self):
"""I'm the 'x' property."""
return self._x
@x.setter
def x(self, value):
self._x = value
@x.deleter
def x(self):
del self._x
仅输入前4行(直到并包括@property
)都会产生SyntaxError:
Just entering the first 4 lines (up to and including @property
) yields a SyntaxError:
>>> class C(object):
... def __init__(self):
... self._x = None
... @property
File "<stdin>", line 4
@property
^
SyntaxError: mismatched input '' expecting CLASS
更新:我正在使用Jython 2.5.2
Update: I am on Jython 2.5.2
当我粘贴整个内容时,会发生以下情况:
Here's what happens when I paste the whole thing:
$ jython
Jython 2.5.2 (Debian:hg/91332231a448, Jun 3 2012, 09:02:34)
[Java HotSpot(TM) 64-Bit Server VM (Sun Microsystems Inc.)] on java1.6.0_45
Type "help", "copyright", "credits" or "license" for more information.
>>> class C(object):
... def __init__(self):
... self._x = None
... @property
File "<stdin>", line 4
@property
^
SyntaxError: mismatched input '' expecting CLASS
>>> def x(self):
File "<stdin>", line 1
def x(self):
^
SyntaxError: no viable alternative at input ' '
>>> """I'm the 'x' property."""
File "<stdin>", line 1
"""I'm the 'x' property."""
^
SyntaxError: no viable alternative at input ' '
>>> return self._x
File "<stdin>", line 1
return self._x
^
SyntaxError: no viable alternative at input ' '
>>> @x.setter
File "<stdin>", line 1
@x.setter
^
SyntaxError: no viable alternative at input ' '
>>> def x(self, value):
File "<stdin>", line 1
def x(self, value):
^
SyntaxError: no viable alternative at input ' '
>>> self._x = value
File "<stdin>", line 1
self._x = value
^
SyntaxError: no viable alternative at input ' '
>>> @x.deleter
File "<stdin>", line 1
@x.deleter
^
SyntaxError: no viable alternative at input ' '
>>> def x(self):
File "<stdin>", line 1
def x(self):
^
SyntaxError: no viable alternative at input ' '
>>> del self._x
File "<stdin>", line 1
del self._x
^
SyntaxError: no viable alternative at input ' '
>>>
更新2:谢谢!
对于可以控制哪个Jython版本的人们,请升级到2.5.3.对于那些无法控制它的人,请使用不带修饰符的旧式语法:
For people that have control over which Jython version, upgrade to 2.5.3. For those who don't have control over it, use the old style syntax without the decorators:
class C(object):
def __init__(self):
self._x = None
def getx(self):
return self._x
def setx(self, value):
self._x = value
def delx(self):
del self._x
x = property(getx, setx, delx, "I'm the 'x' property.")
- 版权申明: 本站部分内容来自互联网,仅供学习及演示用,请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系,请提供相关证据及您的身份证明,我们将在收到邮件后48小时内删除。
- 本站站名: 学新通技术网
- 本文地址: /reply/detail/tanhcgabeh
系列文章
更多
同类精品
更多
-
YouTube API 不能在 iOS (iPhone/iPad) 工作,但在桌面浏览器工作正常?
it1352 07-30 -
iPhone,一张图像叠加到另一张图像上以创建要保存的新图像?(水印)
it1352 07-17 -
保持在后台运行的 iPhone 应用程序完全可操作
it1352 07-25 -
使用 iPhone 进行移动设备管理
it1352 07-23 -
在android同时打开手电筒和前置摄像头
it1352 09-28 -
扫描 NFC 标签时是否可以启动应用程序?
it1352 08-02 -
检查邮件是否发送成功
it1352 07-25 -
Android微调工具-删除当前选择
it1352 06-20 -
希伯来语的空格句子标记化错误
it1352 06-22 -
Android App 和三星 Galaxy S4 不兼容
it1352 07-20