Question

我有一个包含15 000 yaml文件的压缩文件夹。我想使用yaml.safe_load遍历该文件夹，以便每个文件都采用字典格式，并且可以从所需的每个文件中提取信息。到目前为止，我已经使用zipfile.ZipFile和yaml.safe_load编写了一些代码，但它仅适用于压缩文件夹中的第一个文件。有人能介意看一下并解释我的误会吗？

zip_file = zipfile.ZipFile("D:/export.zip")
files = zip_file.namelist()
print(files)
for i in range(10):
    with zip_file.open(files[i]) as yamlfile:
        yamlreader = yaml.safe_load(yamlfile)
        print(yamlreader["identifier"])

现在，我仅遍历10个文件以简化生活。最终，我想完成整个15000。“ identifier”是yaml文件中的键。

这是错误：

10.5281/zenodo.1014773
Traceback (most recent call last):
  File "C:/Users/estho/PycharmProjects/GSOC3/testing_dataextraction.py", line 20, in <module>
    yamlreader = yaml.safe_load(yamlfile)
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\__init__.py", line 162, in safe_load
    return load(stream, SafeLoader)
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\__init__.py", line 114, in load
    return loader.get_single_data()
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\constructor.py", line 41, in get_single_data
    node = self.get_single_node()
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\parser.py", line 98, in check_event
    self.current_event = self.state()
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "C:\Users\estho\PycharmProjects\GSOC3\lib\site-packages\yaml\scanner.py", line 260, in fetch_more_tokens
    self.get_mark())
yaml.scanner.ScannerError: while scanning for the next token
found character '\t' that cannot start any token
  in "yamlfile_10_5281_zenodo_1745362.yaml", line 4, column 1

谢谢。

Answer 1

在我看来，文件"yamlfile_10_5281_zenodo_1745362.yaml"中的令牌名称错误。尝试在没有此文件的情况下运行它。在python中，\t代表制表符，因此在不转义的情况下通常不能包含在字符串ect中。

循环浏览并加载yaml文件的压缩文件夹

1 个答案: