import os
    import shutil
 
    dir = "C:\Users\Bobe\Downloads\TV\\"
 
    for folder in os.listdir(dir):
        if os.path.isdir(os.path.join(dir,folder)):
            for file in os.listdir(dir + folder):
                filelocation = dir+folder+"\\"+file
                if os.path.getsize(filelocation) > 50000000:
                    shutil.move(filelocation, dir + folder + ".avi")
                else:
                    os.remove(filelocation)
 
            shutil.rmtree(dir + folder)

import os
 
# Windows and linux slashes go in opposite directions.
# Uncomment the slash appropriate for your system.
systemslash='/'
# systemslash='\'
 
def get_list_of_files(inDirectory, container=[]):
    for entry in os.listdir(inDirectory):
        if os.path.isdir(inDirectory+systemslash+entry):
            get_list_of_files(inDirectory+systemslash+entry,container)
        container.append(inDirectory+systemslash+entry)
    return container
 
Final_List_of_Files = get_list_of_files('/Users/kevin')
print len(Final_List_of_Files)

filesize = os.path.getsize(inDirectory+systemslash+entry)
fileandsize = (filesize, inDirectory+systemslash+entry)
container.append(fileandsize)

import os
 
# Windows and linux slashes go in opposite directions.
# Uncomment the slash appropriate for your system.
systemslash='/'
# systemslash='\'
 
def get_list_of_files(inDirectory, container=[]):
    for entry in os.listdir(inDirectory):
        entry = inDirectory+systemslash+entry
        if os.path.isdir(entry):
            get_list_of_files(entry,container)
        filesize = os.path.getsize(entry)
        fileandsize = (filesize, entry)
        container.append(fileandsize)
    return container
 
Final_List_of_Files = get_list_of_files('/Users/kevin/Documents')
Final_List_of_Files.sort(reverse=True)
 
print Final_List_of_Files[0]

# File_lister2.py
# create a list of all the files and sizes in a given direcory
# and optionally any of its subdirectories (Python2 & Python3)
# snee
 
import os
 
def file_lister(directory, subs=False):
    """
    returns a list of (size, full_name) tuples of all files
    in a given directory
    if subs=True also any of its subdirectories
    """
    mylist = []
    for fname in os.listdir(directory):
        # add directory to filename for a full pathname
        full_name = os.path.join(directory, fname)
        # size in kb
        size = int(os.path.getsize(full_name)//1024) + 1
        if not os.path.isdir(full_name):
            # append a (size, full_name) tuple
            mylist.append((size, full_name))
        elif subs==True:
            # optionally recurse into subdirs
            file_lister(full_name)
    return mylist
 
#dir_name = r"C:\Python31\Tools"  # Windows
dir_name = "/home/dell/Downloads"  # Linux
file_list = file_lister(dir_name)
 
# show the list sorted by size
for file_info in sorted(file_list, reverse=True):
    print(file_info)
 
print('-'*66)
 
print( "The largest file is: \n%s (%skb)" % \
    (max(file_list)[1], max(file_list)[0]) )
 
"""a typical partial output -->
(24144, '/home/dell/Downloads/ActivePython-2.6.2.2-linux-x86.tar.gz')
(23320, '/home/dell/Downloads/ActivePython-3.1.0.1-linux-x86.tar.gz')
(9288, '/home/dell/Downloads/Python-3.1.tar.bz2')
...
...
------------------------------------------------------------------
The largest file is:
/home/dell/Downloads/ActivePython-2.6.2.2-linux-x86.tar.gz (24144kb)
"""

import os, glob
largest = sorted( (os.path.getsize(s), s) for s in glob.glob('yourdir/*.avi') )[-1][1]

import os, glob
files = glob.glob('yourdir/*.avi')
largest = sorted((os.path.getsize(s), s) for s in files)[-1][1] if files else ''
if largest:
  ... # do something with it