Revert "working version tested in my env"

This reverts commit 304f4fc2a82f19bdf3db800470b5bbf48d5afbed.

Conflicts:
	python/anelastic.py
Revert "working version tested in my env"

This reverts commit 304f4fc2a82f19bdf3db800470b5bbf48d5afbed.

Conflicts:
	python/anelastic.py