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| -rw-r--r-- | Doc/whatsnew/whatsnew24.tex | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/whatsnew/whatsnew24.tex b/Doc/whatsnew/whatsnew24.tex index eb6e1a5..cb05c3a 100644 --- a/Doc/whatsnew/whatsnew24.tex +++ b/Doc/whatsnew/whatsnew24.tex @@ -815,6 +815,13 @@ the name \samp{None} is now a syntax error. the generated bytecode for list comprehensions and speeds them up by about a third. +\item String concatenations in statements of the form \code{s = s + +"abc"} and \code{s += "abc"} are now performed more efficiently in +certain circumstances. This optimization won't be present in other +Python implementations such as Jython, so you shouldn't rely on it; +using the \method{join()} method of strings is still recommended when +you want to efficiently glue a large number of strings together. + \end{itemize} The net result of the 2.4 optimizations is that Python 2.4 runs the |