AttributeError: 'module' object has no attribute 'WaterBridgeAnalysis'

[xdeupi]

Hi all,
I cannot use the WaterBridgeAnalysis class in the hydrogen bond analysis module. When I execute the following script

import MDAnalysis
import MDAnalysis.analysis.hbonds
u = MDAnalysis.Universe('step5_assembly.xplor_ext_JSR.psf', 'runMD500ns_stride50.dcd')
w = MDAnalysis.analysis.hbonds.WaterBridgeAnalysis(u, 'resname ARG', 'resname ASP')
w.run()

I get:

AttributeError: 'module' object has no attribute 'WaterBridgeAnalysis'

I can use other classes in the module (e.g. HydrogenBondAnalysis), and I do see all the necessary source files in my distribution (I installed MDAnalysis 0.18.0-py2.7 in Mac OS 10.13.6 using Conda).

Any ideas?

Thanks,

Xavier

[richardjgowers]

Hey Xavier,

I think you'lll find that at MDAnalysis.analysis.hbonds.wbridge_analysis.WaterBridgeAnalysis, does that work for you?

[orbeckst]

Is MDAnalysis.analysis.hbonds.WaterBridgeAnalysis documented to work? Yes, at https://www.mdanalysis.org/mdanalysis/documentation_pages/analysis/wbridge_analysis.html#how-to-perform-waterbridgeanalysis and given that we also import into the hbonds namespace

mdanalysis/package/MDAnalysis/analysis/hbonds/__init__.py

Line 24 in cd58ce0

__all__ = ['HydrogenBondAnalysis', 'HydrogenBondAutoCorrel']

we should also import the wbridge_analysis ones