Python

what's next?

mySQLdb

db = MySQLdb.connect(host,user,pass,db)
cur = db.cursor()
cur.execute(sql)
res = cur.fetchall()
cur.close()
db.close()

For CentOS

MySQL-python
python-imaging
python-argparse

Date

datetime.date(y,m,d)
datetime.timedelta(u=v)
time.time()