Latest commit(s) causes segmentation fault in pytraj

[hainm]

Hi,

I guess the commit #853 causes pytraj segmentation fault in MacOS Catalina (10.15.7), python 3.8.

Command:

import pytraj as pt

pt._verbose()
traj = pt.iterload('tz2.nc', 'tz2.parm7')

Output

	Reading 'tz2.parm7' as Amber Topology
	This Amber topology does not include atomic numbers.
	Assigning elements from atom masses/names.
	No SCEE section: setting Amber default (1.2)
	No SCNB section: setting Amber default (2.0)
Segmentation fault: 11

The older commit (#848 ) is fine.

[hainm]

I meant #853 caused the bug.

[hainm]

Nevermind, a fresh pytraj build resolves the issue.