Change WIDTH and HEIGHT in class.Comment

Created originally on Bitbucket by tglaudel

Hello and thanks for openpyxl.

I need to change width and height to Comment in xlsx.

I try to overwrite class Comment like :

#!python

class OverwriteComment(Comment):
    """Overwrite Comment from openpyxl for change height and width"""

    def __init__(self, text, author, width='108pt', height='200pt'):
        """init OverwriteComment."""
        super(OverwriteComment, self).__init__(text, author)
        self.height = height
        self.width = width

But, doesn't work.

Do you have a tips for this ?

Sorry for my english, regards.

Thomas.