问需要在文本文件中搜索值，然后从文本文件python3x中提取其中值所在的行

EN

 def convert_pdf_to_txt(path):
        rsrcmgr = PDFResourceManager()
        retstr = io.StringIO()
        codec = 'utf-8'
        laparams = LAParams()
        device = TextConverter(rsrcmgr, retstr, codec=codec, laparams=laparams)
        fp = open(path, 'rb')
        interpreter = PDFPageInterpreter(rsrcmgr, device)
        password = ""
        maxpages = 0
        caching = True
        pagenos = set()

        for page in PDFPage.get_pages(fp, pagenos, maxpages=maxpages,
                                      password=password,
                                      caching=caching,
                                      check_extractable=True):
            interpreter.process_page(page)

        text = retstr.getvalue()

        fp.close()
        device.close()
        retstr.close()
        return text

    path="C:\DDR reports\Smith General server\DDR Algeria\DDR\\07.July\\02.07.2019\\BELN-1-Daily Drilling Report-Report Number51-(07-02-2019).pdf"

    r=convert_pdf_to_txt(path)
        regex=re.compile('[1-9]*\s[a-zA-Z]*\sJar', re.IGNORECASE)
list_jar=list()
i=0
for line in r.split('\n'):
    #search_v=re.findall(pattern,r)
    x=re.findall(regex, line)