euler2 show options with error report in command line interface

[nfranz]

Runs related to this bug issue are in the following folder:

Dropbox/Euler-Runs/bug-reporting/NMF-NMF.local/2015-12-23-18:08:03-rosaceae_partition1_2015_1968_reduced

This issue is about using the "euler2 align" command first, and then (after a consistent run) following up with:

euler2 show iv [for input visualization]
euler2 show pw [for all possible worlds]
euler2 show sv [for summary views]

The specific input file seems to be irrelevant here, and in effect the desired files are generated as expected. However, the CLI reports errors, which I am pasting in below. Evidently there is a variable "index2" in the Python file "show.py" that appears in the code before being defined.

1. "euler2 show iv"
   NMF:bug-reporting NMF$ euler2 show iv
   _input visualization_
   Traceback (most recent call last):
   File "/Users/NMF/EulerX/src-el/euler2", line 145, in
   main()
   File "/Users/NMF/EulerX/src-el/euler2", line 90, in main
   elShower.show()
   File "/Users/NMF/EulerX/src-el/show.py", line 150, in show
   self.refreshStylesheets()
   File "/Users/NMF/EulerX/src-el/show.py", line 165, in refreshStylesheets
   del contents[index+1:index2] # clean nodestyle previously added
   UnboundLocalError: local variable 'index2' referenced before assignment
2. "euler2 show pw"
   NMF:bug-reporting NMF$ euler2 show pw
   _pw visualization_
   Traceback (most recent call last):
   File "/Users/NMF/EulerX/src-el/euler2", line 145, in
   main()
   File "/Users/NMF/EulerX/src-el/euler2", line 90, in main
   elShower.show()
   File "/Users/NMF/EulerX/src-el/show.py", line 150, in show
   self.refreshStylesheets()
   File "/Users/NMF/EulerX/src-el/show.py", line 165, in refreshStylesheets
   del contents[index+1:index2] # clean nodestyle previously added
   UnboundLocalError: local variable 'index2' referenced before assignment
3. "euler2 show sv"
   NMF:bug-reporting NMF$ euler2 show sv
   ***aggregates visualization regular ***
   ***aggregates visualization avStable ***
   ***aggregates visualization avLabile ***
   _cluster visualization_
   There is only ONE possible world, no cluster view.
   _hierarchy visualization_
   Traceback (most recent call last):
   File "/Users/NMF/EulerX/src-el/euler2", line 145, in
   main()
   File "/Users/NMF/EulerX/src-el/euler2", line 90, in main
   elShower.show()
   File "/Users/NMF/EulerX/src-el/show.py", line 150, in show
   self.refreshStylesheets()
   File "/Users/NMF/EulerX/src-el/show.py", line 165, in refreshStylesheets
   del contents[index+1:index2] # clean nodestyle previously added
   UnboundLocalError: local variable 'index2' referenced before assignment