dbgp errors

jebby@arch-laptop ~ $ virtualenv --python=/usr/bin/python2 testenv
Running virtualenv with interpreter /usr/bin/python2
New python executable in /home/jebby/testenv/bin/python2
Also creating executable in /home/jebby/testenv/bin/python
Installing setuptools, pip, wheel...done.
jebby@arch-laptop ~ $ cd testenv
jebby@arch-laptop ~/testenv $ sudo python3 -m pip install dbgp
Collecting dbgp
Installing collected packages: dbgp
Successfully installed dbgp-1.1
You are using pip version 18.0, however version 19.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
jebby@arch-laptop ~/testenv $ source bin/activate
(testenv) jebby@arch-laptop ~/testenv $ pydbgp.py
  File "/usr/bin/pydbgp.py", line 139
    except LookupError, e:
                      ^
SyntaxError: invalid syntax
(testenv) jebby@arch-laptop ~/testenv $