Python 2.5.2-代替 'with' 语句的是什么

Question

我为 python 2.7 编写代码，但服务器有 2.5。我如何重写下一段代码以便它在 python 2.5.2 中运行:

gzipHandler = gzip.open(gzipFile)

try:
    with open(txtFile, 'w') as out:
        for line in gzipHandler:
            out.write(line)
except: 
    pass

现在，当我尝试运行脚本时出现此错误:

Warning: 'with' will become a reserved keyword in Python 2.6 Traceback (most recent call last): File "Main.py", line 7, in from Extractor import Extractor File "/data/client/scripts/Extractor.py", line 29 with open(self._logFile, 'w') as out: ^ SyntaxError: invalid syntax

谢谢，罗恩。

Answer 1

在 Python 2.5 中，您实际上可以使用 with 语句——只需从 __future__ 导入它:

from __future__ import with_statement