problem with band gap calculation

[rvgr]

i have run script but it show following error "name 'band gap' is not defined"  is there any another method to find out direct and indirect band gap
i have try through band structure analysis
i have run effective maas with default setting but it does not show indirect and direct band gap its show only particular band eV(e.g :band 0 = x eV)

[Umberto Martinez]

the attached script works fine... no errors there.

[rvgr]

is there any other way to find band gap?
because i dont get result by this script.

[Umberto Martinez]

You do. Maybe it helps if you change the last line to

Code

print "Indirect band gap: ", ind_gap

and find the corresponding line in your log file Another way, you can measure it directly from the Bandstructure analyzer plot

[rvgr]

gettting this error when run script

[Anders Blom]

Probably your NC file which you are nlsave-ing into is corrupted. Try saving into another file.