如何使用python将这些数据插入到postgresql中？

Question

In the following codes,I want insert authors by locating link .

self.cur.execute("""
    UPDATE articles 
    SET authors = %s 
    WHERE link = %s returning id;
""" % (authors, link))
ret_id = self.cur.fetchone()

And two problems are encountered:

1. Some names are not regular like this:

    LINE 1: UPDATE articles SET authors = Francesco D'Angelo, Roberto T... 

2. When author names are no problem:

    """UPDATE articles SET authors = %s WHERE link = %s returning id;""" % (authors, link)) psycopg2.ProgrammingError: syntax error at or near ":" LINE 1: ...DATE articles SET authors = test WHERE link = http://www.wor... 

Answer 1

Don't format your strings with % when you are using SQL, let the driver do the proper escaping:

self.cur.execute(
    """UPDATE articles SET authors = %s WHERE link = %s returning id;""", (authors, link))

Notice I passed the data as the second argument, execute will take care of escaping the data properly.