Python-сообщество

 # -*- coding:utf-8 -*-
#thatModule.py
import pickle
import time
VERSION_NOTES = []
class versionNote(object):
    def __init__(self, versionNumber, versionNote):
        self.versionNumber = versionNumber
        self.versionNote = versionNote
        self.date = time.asctime()
        return None
    def showNote(self):
        return self.versionNote
def dumpVersions(versions):
    dumpFile = open('versionsDump.pickle', 'wb')
    versionDump = pickle.dump(versions, dumpFile)
    dumpFile.close()
    return None
def undumpVersions():
    dumpFile = open('versionsDump.pickle', 'rb')
    versionDump = pickle.load(dumpFile)
    dumpFile.close()
    return versionDump
def showNote(versionNumber = '0', versionIndex = -1, versions = VERSION_NOTES):
    versions =  undumpVersions()
    if versionNumber != '0':
        for version in VERSION_NOTES:
            if version.versionNumber == versionNumber:
                versionIndex = VERSION_NOTES.index(version)
        if versionIndex == -1:
            return 'VersionNumber was not found'
    try:
        return VERSION_NOTES[versionIndex].showNote()
    except IndexError:
        return 'VersionIndex was not found'
if __name__ == '__main__':
    VERSION_NOTES = undumpVersions()
    print(showNote())

  #main.py
import thatModule
def mainAction():
    versionNote = updates.showNote()
    print(versionNote)
mainAction()

 Traceback (most recent call last):
  File "main.py", line 139, in <module>
    mainAction()
  File "main.py", line 86, in mainAction
    versionNote = thatModule.showNote()
  File "C:\Users\BearPro\Documents\Visual Studio 2015\Projects\project\thatModule.py", line 28, in showNote
    versions =  undumpVersions()
  File "C:\Users\BearPro\Documents\Visual Studio 2015\Projects\project\thatModule.py", line 23, in undumpVersions
    versionDump = pickle.load(dumpFile)
AttributeError: Cant get attribute 'versionNote' on <module '__main__' from main.py'>