Failing to print sorted files

[tester_V]

this one also looks ok but fails to print sorted files for each subdirectory.

dr = 'c:/01/'
for esbd in Path(dr).iterdir() :
    if esbd.is_dir() :
        #rint(f" SubDir -> {esbd}")
        ddr = str(esbd)
        files = glob.glob(os.path.expanduser(ddr +"*.txt"))
        sorted_by_mtime_ascending = sorted(files, key=lambda t: os.stat(t).st_mtime)
        sorted_by_mtime_descending = sorted(files, key=lambda t: -os.stat(t).st_mtime)
        for ef in sorted_by_mtime_descending :
            print (f" === {ef}")