Comment 36 for bug 169985

fix confirmed on OS X

BTW - (in case you like coding more then slicing ;-) - while a confirm dialog for each file to overwrite isn't easily possible in a cross-platform manner, you could use errormsg(msg) from inkex.py[*] to notify the user either of
a) files overwritten, or
b) slices not exported if [overwrite existing exports] is not checked

Even more elegant would be to change the color of the slices according to their most recent export status (e.g. green - exported (new file), grey - not exported (file exists), red - exported (file overwritten))…

anyway, thank you for the recent updates, ~suv

[*] e.g. draw_from_triangle.py reports the triangle properties with inkex.errormsg(_(…))