I&#x27;ve always felt like I hit weird and unexplainable performance walls in Python...my code is either quite fast, or quite slow, and the syntax differences that cause that aren&#x27;t always clear. With Perl 5, things just sort of chug along at a predictable Perl speed and you could always try to tune certain parts for more speed, but if you didn&#x27;t bother you had a reasonable idea at how it should perform. Things like this always make me feel like Python is doing things I don&#x27;t understand.