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import psycopg
def getdsn(db = None, user = None, passwd = None, host = None):
if user == None:
import os, pwd
user = pwd.getpwuid(os.getuid())[0]
if db == None:
db = user
dsn = 'dbname=%s user=%s' % (db, user)
if passwd != None:
dsn += ' password=' + passwd
if host != None:
dsn += ' host=' + host
return dsn
dsn = getdsn()
print "Connecting to %s" % dsn
dbh = psycopg.connect(dsn)
print "Connection successful."
dbh.close()
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