SasView 4.0-alpha: problem selecting polydispersity functions

[smk78]

Using a locally-built SasView 4.0-alpha on W7.

When I try and select a polydispersity distribution I get an error popup:

Error occurred: Could not select the distribution function. Please select another.

Except you get this for all distributions.

Same message echoed in the console.

sasview log file says:

2016-04-26 16:02:31,496 ERROR u'length.width'
2016-04-26 16:02:31,496 ERROR Error occurred: Could not select the distribution function… Please select another distribution function.
2016-04-26 16:02:43,895 ERROR u'radius.width'
2016-04-26 16:02:43,895 ERROR Error occurred: Could not select the distribution function… Please select another distribution function.
2016-04-26 16:02:47,243 ERROR u'radius.width'
2016-04-26 16:02:47,243 ERROR Error occurred: Could not select the distribution function… Please select another distribution function.
2016-04-26 16:02:51,124 ERROR u'length.width'
2016-04-26 16:02:51,124 ERROR Error occurred: Could not select the distribution function… Please select another distribution function.

[butler]

This is also true for the alpha 2 release downloaded from github. Tried on windows 10 and Mac yosemite (10.9). Thus polydispersity is broken for the user. Clearly a blocker.

If I hit fit however it does seem to do something smeared (where is it getting the distribution?). Moreover if I turn polydispersity off after having hit fit and hit fit again bumps seems to throw a traceback error. Should investigate once the main problem is resolved. If still a problem should open a new ticket to deal with.

[butler]

Paul Kienzle fixed this for NIST summer school