boxes without elements are considered assemblies

[Tyler-Ward]

No description provided.

[PeterJCLaw]

I can reproduce this on my Windows machine (Python 3.6, packages listed below), but I'm fairly sure that the linux laptop I've used in the past doesn't reproduce this.

Given that @Tyler-Ward is (from asking in person) also using Linux, it seems more likely that this is a package version thing than a platform thing.

Here's the output of pip list from a fresh virtualenv which reproduces the issue:

(bees) C:\Users\Peter>pip list
Package        Version
-------------- -------
beautifulsoup4 4.6.3
future         0.16.0
numpy          1.15.2
pip            10.0.1
pyparsing      2.2.2
PyYAML         3.13
setuptools     39.0.1
six            1.11.0
sr.tools       1.0.0
sympy          0.7.6.1
tabulate       0.8.2
xlwt-future    0.8.0

[PeterJCLaw]

Hrm, on looking at the code I can't see why I wouldn't have been seeing this on my linux machine. The check of interest isn't something which would change with a dependency update:

        if hasattr(part.parent, "code"):
            if args.assy:
                parts.append(part.parent)
            else:
                print("Warning: Part {} is in an assembly.".format(code),
                      "To move the assembly, use the -a switch.",
                      file=sys.stderr)
                parts.append(part)