old_contents: # coding: utf-8
  
  import os
  import shutil
  import cv2
  
  
  def delete_and_make_directory(dir_path='./image_dir/'):
  	# Delete the entire directory tree if it exists.
  	if os.path.exists(dir_path):
  		shutil.rmtree(dir_path)  
  	
  	# Make the directory if it doesn't exist.
  	if not os.path.exists(dir_path):
  		os.makedirs(dir_path)
  
  
  
  def video_2_frames(video_file='./IMG_2140.MOV', image_dir='./image_dir/', image_file='img_%s.png'):
  	# Delete the entire directory tree if it exists.
  	if os.path.exists(image_dir):
  		shutil.rmtree(image_dir)  
  	
  	# Make the directory if it doesn't exist.
  	if not os.path.exists(image_dir):
  		os.makedirs(image_dir)
  
  	# Video to frames
  	i = 0
  	cap = cv2.VideoCapture(video_file)
  	while(cap.isOpened()):
  		flag, frame = cap.read()  # Capture frame-by-frame
  		if flag == False:  # Is a frame left?
  			break
  		cv2.imwrite(image_dir+image_file % str(i).zfill(6), frame)  # Save a frame
  		print('Save', image_dir+image_file % str(i).zfill(6))
  		i += 1
  
  	cap.release()  # When everything done, release the capture
  
  
  def get_target_files(dir_path='./image_dir/', cond='.png'):
  	files = [f for f in os.listdir(dir_path) if f[-4:]=='.png']
  
  	return files
new_contents: # coding: utf-8
  
  import os
  import shutil
  import cv2
  import numpy as np
  import pandas as pd
  
  
  
  def delete_and_make_directory(dir_path='./image_dir/'):
  	# Delete the entire directory tree if it exists.
  	if os.path.exists(dir_path):
  		shutil.rmtree(dir_path)  
  	
  	# Make the directory if it doesn't exist.
  	if not os.path.exists(dir_path):
  		os.makedirs(dir_path)
  
  
  def video_2_frames(video_file='./IMG_2140.MOV', image_dir='./image_dir/', image_file='img_%s.png'):
  	# Delete the entire directory tree if it exists.
  	if os.path.exists(image_dir):
  		shutil.rmtree(image_dir)  
  	
  	# Make the directory if it doesn't exist.
  	if not os.path.exists(image_dir):
  		os.makedirs(image_dir)
  
  	# Video to frames
  	i = 0
  	cap = cv2.VideoCapture(video_file)
  	while(cap.isOpened()):
  		flag, frame = cap.read()  # Capture frame-by-frame
  		if flag == False:  # Is a frame left?
  			break
  		cv2.imwrite(image_dir+image_file % str(i).zfill(6), frame)  # Save a frame
  		print('Save', image_dir+image_file % str(i).zfill(6))
  		i += 1
  
  	cap.release()  # When everything done, release the capture
  
  
  def get_target_files(dir_path='./image_dir/', cond='.png'):
  	files = [f for f in os.listdir(dir_path) if f[-4:]=='.png']
  
  	return files
  
  
  def make_df_from_list_and_array():
  	col1 = [0,1,2,3,4] 
  	col2 = np.array([5,6,7,8,9])
  	
  	df = pd.DataFrame({'col_list':col1, 'col_array':col2})
  	print(df)
  
subject: Add make_df_from_list_and_array