Question

Hello I have an Error and I don´t the reason:

>>> class Fruits:pass
...
>>> banana = Fruits()
>>> banana.color = 'yellow'
>>> banana.value = 30
>>> import pickle
>>> filehandler = open("Fruits.obj",'w')
>>> pickle.dump(banana,filehandler)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python31\lib\pickle.py", line 1354, in dump
Pickler(file, protocol, fix_imports=fix_imports).dump(obj)
TypeError: must be str, not bytes
>>>

I don´t know how to solve this error because I don´t understand it.
Thank you so much.

Answer 1

You have to open your filehandler in binary mode, use wb instead of w:

filehandler = open(b"fruits.obj","wb")