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Write a script that lists all states from the database hbtn_0e_0_usa:Your script should take 3 arguments: mysql username, mysql password and database name (no argument validation needed)You must use the module MySQLdb (import MySQLdb)Your script should connect to a MySQL server running on localhost at port 3306Results must be sorted in ascending order by states.idResults must be displayed as they are in the example belowYour code should not be executed when imported

Question

Write a script that lists all states from the database hbtn_0e_0_usa:Your script should take 3 arguments: mysql username, mysql password and database name (no argument validation needed)You must use the module MySQLdb (import MySQLdb)Your script should connect to a MySQL server running on localhost at port 3306Results must be sorted in ascending order by states.idResults must be displayed as they are in the example belowYour code should not be executed when imported

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Solution

Here is a Python script that meets your requirements:

#!/usr/bin/python3
import MySQLdb
import sys

if __name__ == "__main__":
    db = MySQLdb.connect(host="localhost", port=3306, user=sys.argv[1], passwd=sys.argv[2], db=sys.argv[3])
    cur = db.cursor()
    cur.execute("SELECT * FROM states ORDER BY id ASC")
    rows = cur.fetchall()
    for row in rows:
        print(row)
    cur.close()
    db.close()

This script does the following:

  1. It imports the MySQLdb module and sys module.
  2. It checks if the script is being run directly and not being imported.
  3. It connects to the MySQL server running on localhost at port 3306 using the username, password, and database name provided as command-line arguments.
  4. It executes a SQL query that selects all states from the database and sorts them in ascending order by their id.
  5. It fetches all the rows returned by the query.
  6. It prints each row.
  7. It closes the cursor and the database connection.

This problem has been solved

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