Question

我正在研究一个简单的程序来查看文件＆＃34; test-2018-06-04-1358.txt＆＃34;存在于使用气流的目录中。我有两个问题。

A）我想在我的正则表达式中使用变量datestr。不知道该怎么做。

B）其次，我的print（文件名）在气流UI中显示在哪里？我检查了我的查看日志，但没有显示任何内容。

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Answer 1

要回答正则表达式问题，只需将字符串添加到一起：

match = re.search('(test)-(' + datestr + ')-(\d+)(\.txt)', filename)

仅当datestr不包含任何正则表达式文字时才会有效。

Answer 2

您不能以与控制台相同的方式使用print。

要查看Log页面中的日志记录条目，请使用logging.info。也许你需要import logging。

python正则表达式中的变量？在气流中打印报表？

2 个答案: