def __init__(self, filename, **keywords):
BookWriter.__init__(self, filename, **keywords)
if is_string(type(filename)):
self.f = open(filename, 'w')
else:
self.f = filename
self.filename = filename
def test_is_string():
if PY2:
assert is_string(type(u'a')) == True
else:
assert is_string(type('a')) == True
def close(self):
if is_string(type(self.filename)):
self.f.close()
