Python psycopg2 check row exists

Question

In Python psycopg2 how can I check if a row exists?

def track_exists(self, track_id):
    cur = self.conn.cursor()
    cur.execute(\"SELECT fma_track_id FRO         


        

Answer 1

def track_exists(self, track_id):
    cur = self.conn.cursor()
    cur.execute("SELECT fma_track_id FROM tracks WHERE fma_track_id = %s", (track_id,))
    if len(cur.fetchall()) > 0:
        return true
    else:
        return false