ImportError: No module named pkg_resources

Following the instructions from here:

https://www.jetbrains.com/help/youtrack/incloud/import-from-github.html

When I run:

    github2youtrack -t token -u login -p password target_url github_user github_password github_repo

It throws error:

```

Traceback (most recent call last):
 File "./github2youtrack", line 6, in <module>
   from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

```