Traceback (most recent call last):


 "/home/arcivanov/.pyenv/versions/3.8.2/lib/python3.8/unittest/case.py", line 60, in testPartExecutor

yield


 "/home/arcivanov/.pyenv/versions/3.8.2/lib/python3.8/unittest/case.py", line 676, in run

self._callTestMethod(testMethod)


 "/home/arcivanov/.pyenv/versions/3.8.2/lib/python3.8/unittest/case.py", line 633, in _callTestMethod

method()


 "/home/arcivanov/.pyenv/versions/3.8.2/lib/python3.8/unittest/loader.py", line 34, in testFailure

raise self._exception
ImportError: Failed to import test module: helloworld_tests

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/home/pysdk/wangxiang/demo/ENV/lib/python2.7/site-packages/oss2/__init__.py", line 3, in <module>

from . import models, exceptions


 "/home/pysdk/wangxiang/demo/ENV/lib/python2.7/site-packages/oss2/models.py", line 10, in <module>

from .utils import http_to_unixtime, make_progress_adapter, make_crc_adapter


 "/home/pysdk/wangxiang/demo/ENV/lib/python2.7/site-packages/oss2/utils.py", line 30, in <module>

from Crypto.Cipher import AES


 "/home/pysdk/wangxiang/demo/ENV/lib/python2.7/site-packages/oss2/Crypto.py", line 12, in <module>

from oss2.utils import b64decode_from_string, b64encode_as_string
ImportError: cannot import name b64decode_from_string
