One step forward and two steps back this feels like... I can't even get the file renaming task verified. I even just copied and pasted someone else's code for that section who for-sure was passing that and it doesn't change the name of the file. What the heck?? So aggravating. I can't imagine what could be wrong. Okay, for giggles, I just ran it through the validator instead of just running the code. When running the code, it told me, "Cannot rename file (filename)". And yet, the validator accepts it. And... when I print the renamed file's absolute path, it hasn't changed. Uggghhhhh...