使用demo中的案例，出现No module named 'easyofd.ofd'

[Intvarinit]

import base64
from easyofd.ofd import OFD # 安装包

出现No module named 'easyofd.ofd'，pip list结果：
easyofd 0.0.8

[renoyuan]

是否可以尝试更新一下版本目前版本是 0.3.1

[Intvarinit]

更新之后，在python3.9环境下出现错误

import base64
from easyofd.ofd import OFD

def pdf2ofd(pdf_pth,out_pth):
    with open(pdf_pth,"rb") as f:
       pdfb64 = f.read()
    ofd = OFD()
    ofd_bytes = ofd.pdf2ofd(pdfb64,optional_text=False)
    ofd.del_data()
    with open(out_pth,"wb") as f:
       f.write(ofd_bytes)
    
def ofd2pdf(ofd_pth,out_pth):
    with open(ofd_pth,"rb") as f:
       ofdb64 = str(base64.b64encode(f.read()),"utf-8")
    ofd = OFD()
    ofd.read(ofdb64)
    pdf_bytes = ofd.to_pdf()
    with open(out_pth,"wb") as f:
       f.write(pdf_bytes)

out_file = "test.ofd"
pdf_file = "test.pdf"
pdf2ofd(pdf_pth=pdf_file,out_pth=out_file)

`

TypeError Traceback (most recent call last)
Cell In[1], line 2
1 import base64
----> 2 from easyofd.ofd import OFD
4 def pdf2ofd(pdf_pth,out_pth):
5 with open(pdf_pth,"rb") as f:
......
TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'
`

[renoyuan]

更新下python 版本？