|help| python 3.12

[Filipe]

I'm with a problem I'm doing a program in python, it sends the
following error message:

File "C:/Documents and Settings/Filipe Vinicius/Desktop/Filipe/Cefet/
LP/Python/trab.sistema.academico/sistemaacademico.2010.5.23.c.py",
line 40, in administrador
    lp = pickle.load(f)
  File "D:\Arquivos De Programa\Python31\lib\pickle.py", line 1365, in
load
    encoding=encoding, errors=errors).load()
EOFError

What you need to do to repair this error? in my program at the part
where the error is find is that:

def administrador():
    f = open('professores.dat', 'rb')
    lp = pickle.load(f)
    f.close()
    ...

Note: i had already imported the pikcle library
THX