Bugzilla

The version of `pip-tools` that we're using is broken -- I think it's due to the `virtualenv` upgrade.

The version of `pip-tools` that we're using is broken -- I think it's due to the `virtualenv` upgrade.

```
Traceback (most recent call last):
  File "/home/ricky/src/mozilla-unified/obj-x86_64-pc-linux-gnu/_virtualenvs/init_py3/bin/pip-compile", line 8, in <module>
    sys.exit(cli())
  File "/home/ricky/src/mozilla-unified/third_party/python/Click/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/ricky/src/mozilla-unified/third_party/python/Click/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/ricky/src/mozilla-unified/third_party/python/Click/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/ricky/src/mozilla-unified/third_party/python/Click/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/ricky/src/mozilla-unified/third_party/python/Click/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/ricky/src/mozilla-unified/obj-x86_64-pc-linux-gnu/_virtualenvs/init_py3/lib/python3.8/site-packages/piptools/scripts/compile.py", line 304, in cli
    for ireq in filter(is_pinned_requirement, ireqs):
  File "/home/ricky/src/mozilla-unified/obj-x86_64-pc-linux-gnu/_virtualenvs/init_py3/lib/python3.8/site-packages/piptools/utils.py", line 122, in is_pinned_requirement
    if ireq.editable:
AttributeError: 'ParsedRequirement' object has no attribute 'editable'
Error running mach:

    ['vendor', 'python']

The error occurred in code that was called by the mach command. This is either
a bug in the called code itself or in the way that mach is calling it.
You can invoke |./mach busted| to check if this issue is already on file. If it
isn't, please use |./mach busted file vendor| to report it. If |./mach busted| is
misbehaving, you can also inspect the dependencies of bug 1543241.

If filing a bug, please include the full output of mach, including this error
message.

The details of the failure are as follows:

subprocess.CalledProcessError: Command '['/home/ricky/src/mozilla-unified/obj-x86_64-pc-linux-gnu/_virtualenvs/init_py3/bin/pip-compile', 'requirements-mach-vendor-python.in', '--no-header', '--no-index', '--output-file', '/home/ricky/src/mozilla-unified/third_party/python/requirements.txt', '--generate-hashes']' returned non-zero exit status 1.

  File "/home/ricky/src/mozilla-unified/python/mozbuild/mozbuild/vendor/mach_commands.py", line 180, in vendor_python
    vendor_command.vendor(**kwargs)
  File "/home/ricky/src/mozilla-unified/python/mozbuild/mozbuild/vendor/vendor_python.py", line 48, in vendor
    subprocess.check_output(
  File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.8/subprocess.py", line 512, in run
    raise CalledProcessError(retcode, process.args,
```