New issue 875: accessing field ('all', 'particle_phi_spherical') fails with units error https://bitbucket.org/yt_analysis/yt/issue/875/accessing-field-all-particle_... Cameron Hummels: As I'm doing some last minute testing with yt, i tried to look at the units output by different fields. so i loaded up some of the sample datasets and ran: import yt ds = yt.load('IsolatedGalaxy/galaxy0030/galaxy0030') ad = ds.all_data() ad['io', 'particle_phi_spherical'] # or ad['all', 'particle_phi_spherical'] It fails with this error: http://paste.yt-project.org/show/E61GH2U1zxq4yYo2l8qD