Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?

Question

I am getting an interesting error while trying to use Unpickler.load(), here is the source code:

open(target, \'a\').close()
scores = {};
with o         


        

Answer 1

It is very likely that the pickled file is empty.

It is surprisingly easy to overwrite a pickle file if you're copying and pasting code.

For example the following writes a pickle file:

pickle.dump(df,open('df.p','wb'))

And if you copied this code to reopen it, but forgot to change 'wb' to 'rb' then you would overwrite the file:

df=pickle.load(open('df.p','wb'))

The correct syntax is

df=pickle.load(open('df.p','rb'))