Steps to reproduce

Install a package with a callable submodule definition.

Commit 185bccb introduces a bug where the package object is not assigned to its fetcher. In the version previous to this commit, _make_fetcher called fetcher.set_package(self).

Error message

A TypeError is reported in the callable submodule definition because the the fetcher's package is None.

Information on your system

Affects all versions of Spack past
185bccb

General information

• I have run spack debug report and reported the version of Spack/Python/Platform
• I have searched the issues of this repo and believe this is not a duplicate
• I have run the failing commands in debug mode and reported the output