如何使用Python从Pdf导入混合分数？

pip install PyPDF2

import PyPDF2

pdf_file = open('example.pdf', 'rb')
pdf_reader = PyPDF2.PdfFileReader(pdf_file)

num_pages = pdf_reader.numPages

page = pdf_reader.getPage(page_number)
page_content = page.extractText()

import re

pattern = r'\d+\s+\d+/\d+'
matches = re.findall(pattern, page_content)

import PyPDF2
import re

def extract_mixed_fractions_from_pdf(pdf_path):
    pdf_file = open(pdf_path, 'rb')
    pdf_reader = PyPDF2.PdfFileReader(pdf_file)
    
    mixed_fractions = []
    
    for page_number in range(pdf_reader.numPages):
        page = pdf_reader.getPage(page_number)
        page_content = page.extractText()
        
        pattern = r'\d+\s+\d+/\d+'
        matches = re.findall(pattern, page_content)
        
        mixed_fractions.extend(matches)
    
    pdf_file.close()
    
    return mixed_fractions

pdf_path = 'example.pdf'
fractions = extract_mixed_fractions_from_pdf(pdf_path)
print(fractions)