Configure failed with "file setup.py not found"

After downloading deltacode and running ./deltacode --help to configure, I get the following error message:

`ERROR: File "setup.py" not found. Directory cannot be installed in editable mode: /local/worker/testruns/1d3c4735-714d-4292-909b-69854d0698ab/src/LicenseChecker
./deltacode/deltacode: line 114: /local/worker/testruns/1d3c4735-714d-4292-909b-69854d0698ab/src/LicenseChecker/deltacode/bin/deltacode: No such file or directory
/local/worker/testruns/1d3c4735-714d-4292-909b-69854d0698ab/src/LicenseChecker/bin/process_delta.rb:59:in `read': No such file or directory @ rb_sysopen - /local/worker/testruns/1d3c4735-714d-4292-909b-69854d0698ab/src/LicenseChecker/output.json (Errno::ENOENT)
from /local/worker/testruns/1d3c4735-714d-4292-909b-69854d0698ab/src/LicenseChecker/bin/process_delta.rb:59:in `'`

I am fairly certain that the "setup.py not found" error is coming from `pip install -e .[testing]` in the configure script: https://github.com/nexB/deltacode/blob/develop/configure#L38, but I'm not sure how to fix it.

I am running this on linux and have both python3.7 and python2.7 installed at the level of the root directory.

I realize this is likely not an issue specifically with deltacode; however, I haven't found success finding resources to help elsewhere, so I'd appreciate any help you can provide!