Terry Reedy tjreedy at udel.edu
Tue Jun 8 08:22:32 EDT 2004

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>     def write( self, text ):
>         self.text += text

With strings, += n times takes O(n**2) time, whereas n appends and join is
O(n).  While ok to use when one knows for sure that n will be small, this
strike me as a bad pattern to post publicly, without comment, where new
Pythoneers might get the wrong idea (as evidenced by some past postings
;-).  For tracebacks, n is usually definitely small but the occasional n up
to maybe 50 might not be considered so.

Terry J. Reedy

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