cli: speedup the `swh` cli command startup time

by moving import statements in functions.

Related to swh-environment#2575 (closed).

---

Migrated from D3901 (view on Phabricator)

Some references in the commit message have been migrated:

• T2575 is now swh-environment#2575 (closed)

Build is green

Patch application report for D3901 (id=13751)

Rebasing onto 6706f7a7...

Current branch diff-target is up to date.

Changes applied before test

commit 60c535ddee7bad85533974630855b0da825af899
Author: David Douard <david.douard@sdfa3.org>
Date:   Wed Sep 9 17:48:44 2020 +0200

    cli: speedup the `swh` cli command startup time
    
    by moving import statements in functions.
    
    Related to swh/devel/swh-environment#2575.

See https://jenkins.softwareheritage.org/job/DCORE/job/tests-on-diff/38/ for more details.

mentioned in merge request !156 (closed)

Merge request was accepted

approved this merge request

Merge request was merged

closed