使用关键字和jython 2.5.1

Question

我有以下内容:

with open("c:\xml1.txt","r") as f1, open('c:\somefile.txt','w') as f2:

这是一个语法错误:

with open("c:\xml1.txt","r") as f1, open('c:\somefile.txt','w') as f2:
                                      ^
SyntaxError: mismatched input ',' expecting COLON

我正在使用netbeans python插件,它依赖于jython 2.5.1

我已经添加了:

from __future__ import with_statement

但这并没有改变任何事情.

关于该怎么做的任何建议？

谢谢

Answer 1

多个上下文管理器的语句只在python2.7中添加,请参阅文档.

对于jython2.5,您需要from __future__ import with_statement启用单上下文管理器功能.

编辑:

有趣的是,甚至jython2.7b2都不支持多个上下文管理器.

你可以做的是嵌套上下文:

with open("c:/whatever") as one_file:
    with open("c:/otherlocation") as other_file:
        pass  #  or do things