move original file path error

[xinyanliang]

Check if we have already moved this file, or at least that it

        # exists to move.

replace
if not os.path.exists(filename):
with
if not os.path.exists(os.path.join('UCF-101',classname,filename)):

[YuLengChuanJiang]

that's right, but you also need replacing
os.path.exists(os.path.join('UCF-101', classname, filename)
with
os.rename(os.path.join('UCF-101', classname, filename), dest)
i think the author may make wrong uploading the .py file.