How can I remove and add record ( dictionary type) to a file. This is the program that I'm working on: the program should create a text file, print the contents of the text file, read the file after it's been created, add a record and print the contents of the file, remove a record(s) from the specified file, write it again, read it again, print the contens of the new file.
Here is what I have so far:
import cPickle, shelve
def write_file():
CIT101 = ["Academic Computer Skills"]
CIT111 = ["Database Management"]
CIT115 = ["Intro to Computer scince"]
CIT127 = ["ACCESS"]
CIT211 = ! ["Systems Analysis and Design"]
CIT216 = ["Visual Basic"]
CIT218 = ["Intermediate Visual Basic"]
CIT234 = ["Decision Support Using Excel"]
pickle_file = open("pickles1.dat","w")
cPickle.dump(CIT101, pickle_file)
cPickle.dump(CIT111, pickle_file)
cPickle.dump(CIT115, pickle_file)
cPickle.dump(CIT127, pickle_file)
cPickle.dump(CIT211, pickle_file)
cPickle.dump(CIT216, pickle_file)
cPickle.dump(CIT218, pickle_file)
cPickle.dump(CIT234, pickle_file)
print "A file has been created and the required specifications have been added"
pickle_file.close
def read_file():
pickle_file = open("pickles1.dat","r")
CIT101 = cPickle.load(pickle_file)
CIT111 = cPickle.load(pickle_file)
CIT115 = cPickle.load(pickle_file)
CIT127 = cPickle.load(pickle_file)
CIT211 = cPickle.load(pickle_file)
CIT216 = cPickle.load(pickle_file)
CIT218 = cPickle.load(pickle_file)
CIT234 = cPickle.load(pickle_file)
pickle_file.close()
pickles = shelve.open("pickles2.dat")
pickles["CIT101"] = ["Academic Computer Skills"]
pickles["CIT111"] = ["Database Management"]
pickles["CIT115"] = ["Intro to Computer scince"]
pickles["CIT127"] = ["ACCESS"]
pickles["CIT211"] = ["Systems Analysis and Design"]
pickles["CIT216"] = ["Visual Basic! "]
pickles["CIT218"] = ["Intermediate Visual Basic"]
pickles["CIT234"] = ["Decision Support Using Excel"]
pickles.sync()
for key in pickles.keys():
print key, "-", pickles[key]
def dele_file():
word_dele = raw_input("Which record do u want to delete?: ")
if word_dele in picles.keys():
del word_dele
else:
print "There is no such record in file pickles2.dat"
pickles.close()
def add_record():
CIT236 = ["SQL Programming"]
CIT240 = ["Database programming"]
pickle_file = open("pickles1.dat","a")
cPickle.dump(CIT236, pickle_file)
cPickle.dump(CIT240, pickle_file)
print "New data was added to the file"
pickle_file.close
def display_instructions():
"""Display the Main menue"""
print \
"""
Main Manue:
1. Exit
2. Create a new file and add specifications
3. (not working)Add more courses to the file
4. Read the file
5. (not working)Delete f! ile
"""
# exit the program >>> 1 <<<
def over_program():
"""Exit the program"""
print "Good Bye!"
def main():
choice = None
display_instructions()
while choice != 1:
choice = raw_input("\nChoice: ")
if choice == "1":
over_program()
break
elif choice == "2":
write_file()
elif choice == "3":
add_to_file()
elif choice == "4":
read_file()
elif choice == "5":
delete_file()
else:
print "\nSorry, but", choice, "isn! 't a valid choice."
main()
raw_input("Press Enter Key to Exit.")
Here is what I have so far:
import cPickle, shelve
def write_file():
CIT101 = ["Academic Computer Skills"]
CIT111 = ["Database Management"]
CIT115 = ["Intro to Computer scince"]
CIT127 = ["ACCESS"]
CIT211 = ! ["Systems Analysis and Design"]
CIT216 = ["Visual Basic"]
CIT218 = ["Intermediate Visual Basic"]
CIT234 = ["Decision Support Using Excel"]
pickle_file = open("pickles1.dat","w")
cPickle.dump(CIT101, pickle_file)
cPickle.dump(CIT111, pickle_file)
cPickle.dump(CIT115, pickle_file)
cPickle.dump(CIT127, pickle_file)
cPickle.dump(CIT211, pickle_file)
cPickle.dump(CIT216, pickle_file)
cPickle.dump(CIT218, pickle_file)
cPickle.dump(CIT234, pickle_file)
print "A file has been created and the required specifications have been added"
pickle_file.close
def read_file():
pickle_file = open("pickles1.dat","r")
CIT101 = cPickle.load(pickle_file)
CIT111 = cPickle.load(pickle_file)
CIT115 = cPickle.load(pickle_file)
CIT127 = cPickle.load(pickle_file)
CIT211 = cPickle.load(pickle_file)
CIT216 = cPickle.load(pickle_file)
CIT218 = cPickle.load(pickle_file)
CIT234 = cPickle.load(pickle_file)
pickle_file.close()
pickles = shelve.open("pickles2.dat")
pickles["CIT101"] = ["Academic Computer Skills"]
pickles["CIT111"] = ["Database Management"]
pickles["CIT115"] = ["Intro to Computer scince"]
pickles["CIT127"] = ["ACCESS"]
pickles["CIT211"] = ["Systems Analysis and Design"]
pickles["CIT216"] = ["Visual Basic! "]
pickles["CIT218"] = ["Intermediate Visual Basic"]
pickles["CIT234"] = ["Decision Support Using Excel"]
pickles.sync()
for key in pickles.keys():
print key, "-", pickles[key]
def dele_file():
word_dele = raw_input("Which record do u want to delete?: ")
if word_dele in picles.keys():
del word_dele
else:
print "There is no such record in file pickles2.dat"
pickles.close()
def add_record():
CIT236 = ["SQL Programming"]
CIT240 = ["Database programming"]
pickle_file = open("pickles1.dat","a")
cPickle.dump(CIT236, pickle_file)
cPickle.dump(CIT240, pickle_file)
print "New data was added to the file"
pickle_file.close
def display_instructions():
"""Display the Main menue"""
print \
"""
Main Manue:
1. Exit
2. Create a new file and add specifications
3. (not working)Add more courses to the file
4. Read the file
5. (not working)Delete f! ile
"""
# exit the program >>> 1 <<<
def over_program():
"""Exit the program"""
print "Good Bye!"
def main():
choice = None
display_instructions()
while choice != 1:
choice = raw_input("\nChoice: ")
if choice == "1":
over_program()
break
elif choice == "2":
write_file()
elif choice == "3":
add_to_file()
elif choice == "4":
read_file()
elif choice == "5":
delete_file()
else:
print "\nSorry, but", choice, "isn! 't a valid choice."
main()
raw_input("Press Enter Key to Exit.")
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