Error message tries to use attribute 'path_with_namespace' that does not exist

[tibs]

Using pyup (version 1.01 within pipenv, using Python 3.6, running on Mac OS/X 10.13.4 High Sierra) I ran a command of the form:

$ pyup --repo=$REPO --user-token=$TOKEN --initial

which reported updating various packages and then fell over with a traceback:

    Traceback (most recent call last):
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/bin/pyup", line 11, in <module>
        sys.exit(main())
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/click/core.py", line 722, in __call__
        return self.main(*args, **kwargs)
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/click/core.py", line 697, in main
        rv = self.invoke(ctx)
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/click/core.py", line 895, in invoke
        return ctx.invoke(self.callback, **ctx.params)
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/click/core.py", line 535, in invoke
        return callback(*args, **kwargs)
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/pyup/cli.py", line 45, in main
        bot.update(branch=branch, initial=initial)
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/pyup/bot.py", line 125, in update
        scheduled=kwargs.get("scheduled", False)
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/pyup/bot.py", line 202, in apply_updates
        updates=updates,
      File "/Users/tonibb01/.local/share/virtualenvs/pyup-55eKFErJ/lib/python3.6/site-packages/pyup/bot.py", line 433, in commit_and_pull
        repo=self.user_repo.path_with_namespace, title=title)
    AttributeError: 'Repository' object has no attribute 'path_with_namespace'

This appears to be triggered by the code:

                    logger.error("Empty commit at {repo}, unable to update {title}.".format(
                        repo=self.user_repo.path_with_namespace, title=title)

...that is, it was trying to report a useful error code, but path_with_namespace does not exist.

The provider for the repository was github, and pip freeze reports:

certifi==2018.4.16
chardet==3.0.4
click==6.7
dparse==0.4.1
idna==2.7
Jinja2==2.10
MarkupSafe==1.0
packaging==17.1
pipenv==2018.5.18
PyGithub==1.39
PyJWT==1.6.4
pyparsing==2.2.0
python-gitlab==1.4.0
pyupio==1.0.1
PyYAML==3.12
requests==2.19.1
safety==1.8.1
six==1.11.0
tqdm==4.23.4
urllib3==1.23
virtualenv==16.0.0
virtualenv-clone==0.3.0