The problem is that the path of the HTML selector and xpath.

Corresponding page: http://lin.popall.com/bbs.htm?code=talking&keyfield=&key=&page=1

Copy the CSS SELECTOR of the table to bring only the part that contains the posts on the free bulletin board There was a problem with the result value of [ ] while working.

The Python we worked on is version 3.7.1. and BS4 and SELENIUM also worked on the latest version.

html=driver.page_source
soup=bs(html, "html.parser")

title_table=soup.select("#popclient > 
                         table:nth-of-type(16) > 
                         tbody > tr > td:nth-of-type(6) > 
                         table:nth-of-type(9)")

I'd appreciate it if you could tell me what the problem is. I beg you.

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I found the answer.

Selector for a table [ #popclient > table:nth-child(16) > tbody > tr > td:nth-child(6) > table:nth-child(9) ]

xpath in table [ //*[@id="popclient"]/table[5]/tbody/tr/td[6]/table[6] ]

Convert the xpath path to the selector format by checking the part where the path of the selector and the xpath are different.

I solved the problem in the same way as above, but I'm not sure why there's a problem with the value of the selector I copied.

If there is a master you know, please answer.