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To process multi-band images, use the :py:meth:`~PIL.Image.Image.split` method or :py:func:`~PIL.Image.merge` function. :param expression: A function that receives a dictionary. :param **kw: Values to add to the function's dictionary. :return: The expression result. This is usually an image object, but can also be an integer, a floating point value, or a pixel tuple, depending on the expression. ) opscopyupdateitemsrrr rr() expressionkwargskvr2s r lambda_evalrs|88:DKKO "1 a %qkDG" T Cvv  s0 A<< B  B c tj|D]'}d|vstt|sd|d}t |j |j D].\}}t|tjs!t||<0t|ddd fd tj|ddtii} |jS#t$r|cYSwxYw) a- Evaluates an image expression. This uses Python's ``eval()`` function to process the expression string, and carries the security risks of doing so. It is not recommended to process expressions without considering this. :py:meth:`~lambda_eval` is a more secure alternative. :py:mod:`~PIL.ImageMath` only supports single-layer images. To process multi-band images, use the :py:meth:`~PIL.Image.Image.split` method or :py:func:`~PIL.Image.merge` function. :param expression: A string containing a Python-style expression. :param **kw: Values to add to the evaluation context. :return: The evaluated expression. This is usually an image object, but can also be an integer, a floating point value, or a pixel tuple, depending on the expression. __r% ' not allowedzevalc|jD]!}t|tus|#|jD]}|vs|dk7sd|d}t|y)Nr;r%r) co_conststypeco_namesr)codeconstnamer!r compiled_codescans rrzunsafe_eval..scan+si^^ EE{d=11U  MM &D4DEM$}- o% &r __builtinsr;)rrrNone)rrhasattrbuiltinsrrrrrr compilerr;rr() rrrr!rr2rrrs @@@r unsafe_evalr s&88:D " 19!,aS &CS/ !"  KKO "1 a %qkDG"J F;M&  -- \E3<$@$ GCvv  s C C-,C-)rr rr )rr rIrrr )rr rrrr )rzCallable[[dict[str, Any]], Any]rr rr )rrrr rr ) __future__rrrr TYPE_CHECKINGcollections.abcrtypesrtypingr r rrrrrrrrrrr@rrrsy"#! (e-e-R** 33**+   "   8/r