[Tutor] what's wrong in my command?

[Shurui Liu (Aaron Liu)]

# geek_translator3.py

# Pickle
import pickle

# Open Dictionary
geekfile = open('geekdictionary3.txt', 'r+')
new_geeks = pickle.load(geekfile)
geekterms = new_geeks.keys()
geekterms.sort()

# start
choice = None
while choice != "0":

    print \
    """
    Geek Translator

    0 - Quit
    1 - Look Up a Geek Term
    2 - Add a Geek Term
    3 - Redefine a Geek Term
    4 - Delete a Geek Term
    5 - List of Terms
    """

    choice = raw_input("Choice: ")
    print

    # exit
    if choice == "0":
        print "Good-bye."

    # get a definition
    elif choice == "1":
        term = raw_input("What term do you want me to translate?: ")
        if term in new_geeks:
            definition = new_geeks[term]
            print "\n", term, "means", definition
        else:
            print "\nSorry, I don't know", term

    # add a term-definition pair
    elif choice == "2":
        term = raw_input("What term do you want me to add?: ")
        if term not in new_geeks:
            definition = raw_input("\nWhat's the definition?: ")
            new_geeks[term] = definition
            geekterms.append(term)
            geekterms.sort()
            print "\n", term, "has been added."
        else:
            print "\nThat term already exists!  Try redefining it."
    # redefine an existing term
    elif choice == "3":
        term = raw_input("What term do you want me to redefine?: ")
        if term in new_geeks:
            definition = raw_input("What's the new definition?: ")
            new_geeks[term] = definition
            print "\n", term, "has been redefined."
        else:
            print "\nThat term doesn't exist!  Try adding it."

    # delete a term-definition pair
    elif choice == "4":
        term = raw_input("What term do you want me to delete?: ")
        if term in new_geeks:
            del new_geeks[term]
            geekterms.remove(term)
            print "\nOkay, I deleted", term
        else:
            print "\nI can't do that!", term, "doesn't exist in the dictionary."

    # list of terms
    elif choice == "5":
        print geekterms

    # some unknown choice
    else:
        print "\nSorry, but", choice, "isn't a valid choice."
# geek speak link
print "\tTo learn to speak geek visit"
print "\n\t\thttp://www.youtube.com/watch?v=7BpsXZpAARk"

# 133t speak links
print "\n\n\tTo learn to 1337 speak visit"
print "\n\t\thttp://linuxreviews.org/howtos/l33t/"
print "\n\t\t\t\tor"
print "\n\t\thttp://textozor.com/hacker-text/"

# save dictionary
pickle.dump(ldict, open('geekdictionary.txt', 'r+'))

# close file
geekfile.close()

raw_input("\n\nPress the enter key to exit.")





When I run it, the system gave me the feedback below:
Traceback (most recent call last):
  File "geek_translator3.py", line 4, in <module>
    import pickle
  File "/usr/local/lib/python2.5/pickle.py", line 13, in <module>

AttributeError: 'module' object has no attribute 'dump'

I don't understand, I don't write anything about pickle.py, why it mentioned?
what's wrong with "import pickle"? I read many examples online whose
has "import pickle", they all run very well.
Thank you!

-- 
Shurui Liu (Aaron Liu)
Computer Science & Engineering Technology
University of Toledo