<transcript><audio_154>caveat because you can still uh you know introduce some problems we will see one funny example in a second uh but the idea is that these pars are not ambiguous anymore like context fre grammars normally ambiguity means that you can have two possible uh you know threes as we saw before like you know a</transcript><caption><image_155>The image is a graphic with a beige background and a black border. On the right side of the image, there is a text that reads "For context free grammars, ambiguity is defined as having more than one valid parse tree. Unlike for context free grammar (like LL1) grammers) ambiguity is a concept that cannot be properly defined for PEG grammers. In PEG, if an input is valid, it has exactly one parse tree, the first one that the parser managed to produce." On the left side, there are two illustrations of a wooden chest with a lock and a keyhole. The chest is drawn in a sketch-like style and appears to be old and worn.</caption><transcript><audio_156>grammar is ambigous if the person going to decide which one is the correct one but because here you're trying basically every alternative in order there is no ambiguity because the correct one is the first one that works so if two works the the first one that works is the one that you're going to say that is is correct</transcript><caption><image_157>The image is a graphic design for a podcast called "PEP-617". It has a beige background with three circular images on the left side. On the top left, there is a photo of a man with long hair and a beard, wearing a black t-shirt and headphones. In the middle, there are three men with different hairstyles and facial expressions. The man in the center has blonde hair and glasses, and the man on the right has a beard and a turban. The text on the image reads "New PEG parser for PEP - 617". The text is written in blue and is in a modern sans-serif font. The overall design is simple and minimalistic.</caption><transcript><audio_158>um so we basically implemented all this new parser in pep 617 together with Wido and lisandros and um and since python 3.9 python has this extremely more powerful parer um it's actually um so</transcript> caveat because you can still uh you know introduce some problems we will see one funny example in a second uh but the idea is that these pars are not ambiguous anymore like context fre grammars normally ambiguity means that you can have two possible uh you know threes as we saw before like you know a grammar is ambigous if the person going to decide which one is the correct one but because here you're trying basically every alternative in order there is no ambiguity because the correct one is the first one that works so if two works the the first one that works is the one that you're going to say that is is correct um so we basically implemented all this new parser in pep 617 together with Wido and lisandros and um and since python 3.9 python has this extremely more powerful parer um it's actually um so
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