import os, shutil

path_1 = "C:\\Users\\Deba\\wtf1"
path_2 = "C:\\Users\\Deba\\wtf2"
new_path_1 = "C:\\Users\\Deba\\p1"
new_path_2 = "C:\\Users\\Deba\\p2"

for path, subdirs, files in os.walk(path_1):
    for name in files:
        shutil.copy2(os.path.join(path, name), os.path.join(new_path_1, name))

for path, subdirs, files in os.walk(path_2):
    for name in files:
        shutil.copy2(os.path.join(path, name), os.path.join(new_path_2, name))

for path, subdirs, files in os.walk(new_path_1):
    for name in files:
        if not os.path.isfile(os.path.join(new_path_2, name)) or \
                os.path.getsize(os.path.join(new_path_2, name)) != os.path.getsize(os.path.join(new_path_1, name)):
            print("Pliku " + name + " nie ma w drugim folderze lub jego rozmiar sie nie zgadza")