## don't modify anything below this line (except for experimenting)
  
  import sys
  import os
  import psycopg2
  import openpyxl
  
  DSN = "dbname=pnegron"
  
  print "Opening connection using dsn:", DSN
  conn = psycopg2.connect(DSN)
  print "Encoding for this connection is", conn.encoding
  
  curs = conn.cursor()
  try:
      curs.execute("CREATE TABLE cisco_devices (device text, Serial_No text)")
  except:
      conn.rollback()
      curs.execute("DROP TABLE cisco_devices")
      curs.execute("CREATE TABLE cisco_devices (device text, Serial_No text)")
  conn.commit()
  
  # demostrate copy_to functionality
  data = [('R1', '12345', ),
          ('R2', '34567')]
  query = "INSERT INTO cisco_devices VALUES (%s,%s)"
  curs.executemany(query, data)
  conn.commit()
  
  # copy_to text doc using custom separator
  io = open('/Users/pnegron/Desktop/TestConfig.txt', 'w')
  curs.copy_to(io, 'cisco_devices', ':')
  print "2) Copied %d records into file object using sep = :" % len(data)
  io.close()
  
  # open an EXCEL spreadsheet and go to the First Sheet
  wb2 = openpyxl.load_workbook('/Users/pnegron/Desktop/example.xlsx')
  sheet = wb2.get_sheet_by_name('First Sheet')
  
  # Dump the data from the tuple to the sheet postions
  sheet['A2'] = data[0][0]
  sheet['B2'] = data[0][1]
  
  # Assign one of the cells of a sheet to a variable and print it. Save the Doc!
  x = sheet['A2']
  print x.value
  wb2.save('/Users/pnegron/Desktop/example.xlsx')
  
  #curs.execute("DROP TABLE cisco_devices")
  #os.unlink('/Users/pnegron/Desktop/TestConfig.txt')
  #conn.commit()