$ pypy -m pip install --no-cache-dir -U https://github.com/kirk-sayre-work/ViperMonkey/archive/master.zip
$ pypy
Python 2.7.18 (a29ef73f9b32, Nov 09 2020, 18:42:06)
[PyPy 7.3.3 with GCC 7.3.1 20180303 (Red Hat 7.3.1-5)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>> import vipermonkey
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "$HOME/.local/lib/pypy2.7/site-packages/vipermonkey/__init__.py", line 3, in <module>
    from vipermonkey.api import *
  File "$HOME/.local/lib/pypy2.7/site-packages/vipermonkey/api.py", line 97, in <module>
    orig_Context = Context
NameError: global name 'Context' is not defined