尝试 'open()'，除了 Python for 循环中的 IOError

Question

(Python 2.7) 下面的代码在目录中搜索 .xml 文件并在每个 XML 中搜索字符串。我试图在无法找到（或打开）.xml 文件时获取异常。

到目前为止，当没有找到 XML 时，'with' 语句没有正确执行，而是忽略 'except IOError' 并继续执行。

import os

for root, dirs, files in os.walk('/DIRECTORY PATH HERE'):
    for file1 in files:
        if file1.endswith(".xml") and not file1.startswith("."):
            filePath = os.path.join(root, file1)

            try:
                with open(filePath) as f:
                    content = f.readlines()
                for a in content:
                    if "string" in a:
                        stringOutput = a.strip()
                        print 'i\'m here' + stringOutput

            except IOError:
                print 'No xmls found'

Answer 1

根据您的评论，我想这就是您要找的。

import os

for root, dirs, files in os.walk("/PATH"):
    if not files:
        print 'path ' + root + " has no files"
        continue

    for file1 in files:
        if file1.endswith(".xml") and not file1.startswith("."):
            filePath = os.path.join(root, file1)

            with open(filePath) as f:
                content = f.readlines()

                for a in content:
                    if "string" in a:
                        stringOutput = a.strip()
                        print 'i\'m here' + stringOutput
        else:
            print 'No xmls found, but other files do exists !'

尝试 'open()'，除了 Python for 循环中的 IOError

Try 'open()', except IOError in Python for loop

xml

for-loop

try-catch

except

python-2.7