Python, sharing mysql connection in multiple functions - pass connection or cursor? -

i opening mysql connection in main function , use connection in multiple functions called main function.

is there wrong passing cursor main function instead of passing connection?

i.e.:

pass in cursor main function

def main():     conn = pymysql.connect(...)     conn cursor:         func1(cursor)         func2(cursor)     conn.close()  def func1(cursor):     cursor.execute('select ...')  def func2(cursor):     cursor.execute('insert ...') 

pass in connection main function

def main():     conn = pymysql.connect(...)     func1(conn)     func2(conn)     conn.close()  def func1(conn):     conn cursor:         cursor.execute('select ...')  def func2(conn):     conn cursor:         cursor.execute('insert ...') 

the answer comes law of demeter: pass cursor.

this leads shorter code. in case, it's pretty trivial, may lot (e.g., passing database name vs. passing cursor).