What's the number pipenv shows when installing packages?

Question

When I'm installing packages with pipenv, it says:

Installing dependencies from Pipfile.lock (354967)…
  ================================ 58/58 - 00:00:07

What's that number? 354967? Where does it come from?

Answer 1

From the source, it appears this is the last 6 characters of the sha256 hash of the lock file.

fix_utf8("Installing dependencies from Pipfile.lock ({0})…".format(
    lockfile["_meta"].get("hash", {}).get("sha256")[-6:]
)),