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Diffstat (limited to 'Doc/whatsnew/whatsnew23.tex')
| -rw-r--r-- | Doc/whatsnew/whatsnew23.tex | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/Doc/whatsnew/whatsnew23.tex b/Doc/whatsnew/whatsnew23.tex index 8235ebd..4b7c520 100644 --- a/Doc/whatsnew/whatsnew23.tex +++ b/Doc/whatsnew/whatsnew23.tex @@ -285,13 +285,16 @@ file. For example, a UTF-8 file can be declared with: \end{verbatim} Without such an encoding declaration, the default encoding used is -ISO-8859-1, also known as Latin1. +7-bit ASCII. Executing or importing modules containing string +literals with 8-bit characters and no encoding declaration will result +in a \exception{DeprecationWarning} being signalled by Python 2.3; in +2.4 this will be a syntax error. -The encoding declaration only affects Unicode string literals; the -text in the source code will be converted to Unicode using the -specified encoding. Note that Python identifiers are still restricted -to ASCII characters, so you can't have variable names that use -characters outside of the usual alphanumerics. +The encoding declaration only affects Unicode string literals, which +will be converted to Unicode using the specified encoding. Note that +Python identifiers are still restricted to ASCII characters, so you +can't have variable names that use characters outside of the usual +alphanumerics. \begin{seealso} @@ -2079,6 +2082,11 @@ if \var{X} is more than one character long. integer instead of raising an \exception{OverflowError} when a string or floating-point number is too large to fit into an integer. +\item If you have Unicode strings that contain 8-bit characters, you +must declare the file's encoding (UTF-8, Latin-1, or whatever) by +adding a comment to the top of the file. See +section~\ref{section-encodings} for more information. + \item Calling Tcl methods through \module{_tkinter} no longer returns only strings. Instead, if Tcl returns other objects those objects are converted to their Python equivalent, if one exists, or |