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3. By Rodolfo Carvalho on 2011-09-12

Apply fix described in the last commit to other places.

Note that it's very unliked that the fix is in any way complete, because there can be many different places forcing a conversion to ascii using str() without proper care to handle non-ascii data.
Handling manually everywhere is error prone and brings in code duplication.

2. By Rodolfo Carvalho on 2011-09-12

Fixes encoding error when saving files in non-ascii paths.

When trying to save a workflow in a path containing characters like ç, á, etc,
VisTrails failed silently, not saving anything.
Looking to stdout, one can see the Python traceback generated:
  UnicodeEncodeError: 'ascii' codec can't encode character

The simplest way to fix is to let PyQt to convert the QString to a raw
utf-8 enconded string.

1. By Rodolfo Carvalho on 2011-09-12

Vistrails official 1.6.2-af4a69ad566a