pickle + queue/deque inside a file

picklequeue.py

import pickle
import collections
import queue


def f():
    return "hello" # it's a test


class PickleQueue:
    filename = "queue.pickle"
    default_type = collections.deque()

    def __init__(self, lock=False, default_type=default_type):
        print(lock)
        with open('queue.pickle', 'wb') as handle:
            pickle.dump(default_type, handle, protocol=pickle.HIGHEST_PROTOCOL)
        pass

    def put_pickle_inside_file(a):
        with open('queue.pickle', 'wb') as handle:
            pickle.dump(a, handle, protocol=pickle.HIGHEST_PROTOCOL)

    def queue(self):
        with open('queue.pickle', 'rb') as handle:
            return pickle.load(handle)

    def put(self, a=None):
        if a is None:
            return
        else:
            with open('queue.pickle', 'rb') as handle:
                try:
                    b = pickle.load(handle)
                    b.append(a)
                except EOFError:
                    pass
            with open('queue.pickle', 'wb') as handle:
                pickle.dump(b, handle, protocol=pickle.HIGHEST_PROTOCOL)

    def get(self):
        with open('queue.pickle', 'rb') as handle:
            try:
                b = pickle.load(handle)
                wow = b.popleft()
            except EOFError:
                pass
            except IndexError:
                pass
        with open('queue.pickle', 'wb') as handle:
            pickle.dump(b, handle, protocol=pickle.HIGHEST_PROTOCOL)
        return wow

    def size(self):
        with open('queue.pickle', 'rb') as handle:
            try:
                b = pickle.load(handle)
                return len(b)
            except EOFError:
                pass


test1 = PickleQueue()
test2 = queue.Queue()

test1.put(f)
test2.put(f)


print(test1.get())
print(test2.get())

print("test1", test1)
print("test2", test2)

test1.put(f)
test2.put(f)
print("test1", test1.queue)
print("test2", test2.queue)