python向下钻取“PyPDF2”的嵌套列表最有效的方法是什么。通用目的地'并列出对象以获取列表的最后一个实例? (获取PDF大纲及其页码的所有级别)。你知道吗
pdfread = p2.PdfFileReader(list_files)
s = pdfread.outlines
chapters = []
pages = []
levels = []
files = []
for x in s:
files.extend([x])
if isinstance(x, (int, list, float, complex)):
for y in x:
if isinstance(y, (int, list, float, complex)):
for z in y:
if isinstance(z, (int, list, float, complex)):
for a in z:
if isinstance(a, (int, list, float, complex)):
for c in a:
if isinstance(c, (int, list, float, complex)):
print(c.title)
else:
chapters.extend([c.title])
pages.extend([pdfread.getDestinationPageNumber(c)])
levels.extend(['5'])
else:
chapters.extend([a.title])
pages.extend([pdfread.getDestinationPageNumber(a)])
levels.extend(['4'])
else:
chapters.extend([z.title])
levels.extend(['3'])
pages.extend([pdfread.getDestinationPageNumber(z)])
else:
chapters.extend([y.title])
levels.extend(['2'])
pages.extend([pdfread.getDestinationPageNumber(y)])
else:
chapters.extend([x.title])
levels.extend(['1'])
pages.extend([pdfread.getDestinationPageNumber(x)])
df = pd.DataFrame({'chapters': chapters, 'pages' : pages, 'levels' : levels})
df.head(44)
只需定义一个递归函数:
nested_is_instance_check
为文件中的每个级别调用自身。你知道吗相关问题 更多 >
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