[Tutor] sensing EOF in Python 3.1

[Cranky Frankie]

I'm reading in a pickled file. The program works but I'm having
trouble sensing end of file. Here's the program:

#
# pickle_in.py
# program to read in a pickled file
#
# Frank L. Palmeri
#

import pickle                                   # import the pickle module
pickle_file = open("d:/Work/pickle_file", "rb") # open the pickled input file

read_file = pickle.load(pickle_file)            # read the first input record

new_list=[]                                     # create a new empty list

while pickle_file:                              # loop until end of file
    for i in range(0, 4):                       # iterate for each field
        new_list.append(read_file[i])           # append each field to
the new list
        i = i + 1                               # increment loop counter
    print(new_list)                             # print the input
record from the new list
    new_list=[]                                 # initialize the new
list for the next record
    read_file = pickle.load(pickle_file)        # read the next record
in the input file


here's the error:

Traceback (most recent call last):
  File "D:\MyDocs\Python\pickle_in.py", line 21, in <module>
    read_file = pickle.load(pickle_file)        # read the next record
in the input file
  File "D:\Python31\lib\pickle.py", line 1365, in load
    encoding=encoding, errors=errors).load()
EOFError







-- 
Frank L. "Cranky Frankie" Palmeri