error when writing variable to mysql via python

I am trying to insert with python (v 2.7.6) a variable with multiple entries into mysql (Ver 14.14 Distrib 5.5.43) table. The code is as follows :

cur = con.cursor()
cur.execute("CREATE TABLE IF NOT EXISTS Stations(     \
            StationsID  INT AUTO_INCREMENT,           \
            Code      VARCHAR(3)       ,              \
            PRIMARY KEY pk_Stations (StationsID)      \
            );");

cur.executemany("INSERT INTO Stations (Code) VALUES(?)", sns);

sns variable has the following form:array(['PAL', 'TT1', 'BAL', 'MHD', 'BI5', 'CB4'],dtype='|S3')

I am getting the following error: File "/usr/lib/python2.7/dist-packages/MySQLdb/cursors.py", line 199, in executemany if not args: return ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

Could you please give me a help here?