Reading a shelve file. : shelve « Database « Python Tutorial

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Python Tutorial » Database » shelve 
15. 5. 5. Reading a shelve file.
import sys
import shelve

def outputLineaccount, aList ):
   print account.ljust10 ),
   print aList].ljust10 ),
   print aList].ljust10 ),
   print aList].rjust10 )

try:
   creditFile = shelve.open"credit.dat" )
except IOError:
   print >> sys.stderr, "File could not be opened"
   sys.exit)

for accountNumber in creditFile.keys():
   outputLineaccountNumber, creditFileaccountNumber ] )

creditFile.close()
15. 5. shelve
15. 5. 1. object returned by shelve.open is not an ordinary mapping
15. 5. 2. Storing Objects in a Shelve File
15. 5. 3. Changing Objects in a Shelve File
15. 5. 4. Writing to shelve file.
15. 5. 5. Reading a shelve file.
15. 5. 6. database based on shelve file
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