AttributeError: 'function' object has no attribute 'func_code'

[hungpham2017]

I ran the 01-parallel_krhf-diamond.py example and got this error:

Traceback (most recent call last):
File "01-parallel_krhf-diamond.py", line 34, in
mf.with_df = df.FFTDF(cell, kpts)
File "/panfs/roc/groups/6/gagliard/phamx494/mpi4pyscf/tools/mpi.py", line 498, in init
(args[0].dumps(),)+args[1:], kwargs))
File "/panfs/roc/groups/6/gagliard/phamx494/mpi4pyscf/tools/mpi_pool.py", line 133, in apply
F = _function_wrapper(function)
File "/panfs/roc/groups/6/gagliard/phamx494/mpi4pyscf/tools/mpi_pool.py", line 171, in init
self.func_code = marshal.dumps(function.func_code)
AttributeError: 'function' object has no attribute 'func_code'

[sunqm]

This is a python 3 compatibility issue. The attribute .func_code of python2 was replaced by python 3 .code attribute.

[danielsjf]

.__code__ to be precise

[RiaanLab]

@danielsjf Thanks, there is a huge difference between the two.

[babaralishah]

Hi!

HEre is my code and error below:
please assist...