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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 options: Values to add to the function's dictionary. You can either use a dictionary, or one or more keyword arguments. :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. r)opscopyupdateitemshasattrr rr*) expressionoptionskwargskvr4s r lambda_evalrs*88:DKKKKO "1 1d qkDG" T Cvv  s3 A?? B  B c H tjt|jt|jzD]'}d|vst t |sd|d}t |j|j|jD] \}}t |dst||<"t|ddd  fd  t j|dd tii} |jS#t$r|cYSwxYw) a Evaluates an image expression. This uses Python's ``eval()`` function to process the expression string, and carries the security risks of doing so. It is not recommended to process expressions without considering this. :py:meth:`~lambda_eval` is a more secure alternative. :py:mod:`~PIL.ImageMath` only supports single-layer images. To process multi-band images, use the :py:meth:`~PIL.Image.Image.split` method or :py:func:`~PIL.Image.merge` function. :param expression: A string containing a Python-style expression. :param options: Values to add to the evaluation context. You can either use a dictionary, or one or more keyword arguments. :return: The evaluated expression. This is usually an image object, but can also be an integer, a floating point value, or a pixel tuple, depending on the expression. __r& ' not allowedrzevalc|jD]!}t|tus|#|jD]}|vs|dk7sd|d}t|y)Nr=r&r) co_conststypeco_namesr)codeconstnamer"r compiled_codescans rrzunsafe_eval..scan9si^^ EE{d=11U  MM &D4DEM$}- o% &r __builtinsr=)rrrNone)rrlistkeysrbuiltinsrrrr compilerr=rr*) rrrrr"rr4rrrs @@@r unsafe_evalrs288:D ',,. !DO 3" 19!,aS &CS/ !"  KKKKO "1 1d qkDG"J F;M&  -- \E3<$@$ GCvv  s D D! D!c 6tdddt||fi|S)a1 Evaluates an image expression. Deprecated. Use lambda_eval() or unsafe_eval() instead. :param expression: A string containing a Python-style expression. :param _dict: Values to add to the evaluation context. You can either use a dictionary, or one or more keyword arguments. :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. .. deprecated:: 10.3.0 zImageMath.eval z.ImageMath.lambda_eval or ImageMath.unsafe_eval)r r)r_dictrs rrrKs)* 8 z5 /B //r)rr rr )rr rKrrr )rr rrrr )rzCallable[[dict[str, Any]], Any]rdict[str, Any]rrrr)rrrrrrrr)rrrrrrrr) __future__rrtypesrtypingrrrr _deprecater r rrrrrrrrrrrrBrrrs"# !!h-h-X** 33**+   "   ! /      J!66 6 6 6v00 0 0 0r