'Initialize instance variables'

def __init__(self, filename_base=TESTFN, imported='time', good_dirname='__testdir__', bad_dirname='__bad'):

    self.filename = (filename_base + '.pth')
    self.base_dir = os.path.abspath('')
    self.file_path = os.path.join(self.base_dir, self.filename)
    self.imported = imported
    self.good_dirname = good_dirname
    self.bad_dirname = bad_dirname
    self.good_dir_path = os.path.join(self.base_dir, self.good_dirname)
    self.bad_dir_path = os.path.join(self.base_dir, self.bad_dirname)
