Python - Error when trying to add comments -

i learning reading/writing strings, lists, etc txt/dat files. wanted add comment in code can refer access keys are. did.

# mode   description # rb     read binary file. if file doesn’t exist, python complain error. # wb     write binary file. if file exists, contents overwritten. if file doesn’t exist, #        it’s created. # ab     append binary file. if file exists, new data appended it. if file doesn’t exist, it’s #        created. # rb+    read , write binary file. if file doesn’t exist, python complain #        error. # wb+    write , read binary file. if file exists, contents overwritten. if file #        doesn’t exist, it’s created. # ab+    append , read binary file. 

and after have:

import pickle, shelve  print("pickling lists.") variety = ["sweet", "hot", "dill"] shape = ["whole", "spear", "chip"] brand = ["claussen", "heinz", "vlassic"]  f = open("pickles1.dat", "wb")  pickle.dump(variety, f) pickle.dump(shape, f) pickle.dump(brand, f) f.close()  print("\nunpickling lists.") f = open("pickles1.dat", "rb") variety = pickle.load(f) shape = pickle.load(f) brand = pickle.load(f)  print(variety) print(shape) print(brand) f.close() 

when run following error:

syntaxerror: non-utf-8 code starting '\x92' in file pickleit.py on line 10, no encoding declared; see http://python.org/dev/peps/pep-0263/ details

i checked out link, don't understand it, haven't seen before.

---

oh , apologies line 10 # rb

replace ’ '. it's complaining because didn't add encoding type beginning of file. default encoding utf-8, in characters not allowed.

instead of replacing, can add line beginning (before comments):

# coding: iso-8859-1

(or encoding in characters present, latin-1 example.)

this line sets encoding file , allows use of special characters.