def renamecol(self, old, new):
spreadsheet.renamecol(self, old, new)<EOL>for x in self.coloring.keys():<EOL><INDENT>if old in self.coloring[x]:<EOL><INDENT>ind = self.coloring[x].index(old)<EOL>self.coloring[x][ind] = new<EOL><DEDENT><DEDENT>
Rename column or color in-place.

Method wraps::

        tabular.spreadsheet.renamecol(self, old, new)