text: import os
  import sys
  import random
  import requests
  import pandas as pa
  #%%
  def current():
      """return the current working directory"""
      value=os.getcwd()
      return value
  
  current_dir = current()
  #%%
  def listing(extension):
      x = (os.listdir(os.getcwd()))
      y=[]
      s=extension
      for i in x:
          i=i.split('.')[-1]
          if s==i:
              y.append(i)
      return y
  
  #%%
  def create_dir(file):
      name=file.strip('.txt')
      os.mkdir(name,0o755)
      print("\nDirectory successfully created")
      return name
  #%%
  def change_dir(name):
      if(os.path.exists(name)):
          os.chdir(name)
  
  def cd():
      a=os.getcwd()
      a=a.split('/')[:-1]
      a=('/').join(a)
      os.chdir(a)
  #%%
  def down(content): 
      for j in range(0,len(content)):
          extension=content[j].split('.')[-1].strip('\n')
          name_image=str(j+1)+'.'+extension
          print('Getting the content of line {0}\n'.format(j+1))
          con=content[j].strip('\n')
          print('Downloading...\n')
          r=requests.get(con)
          with open(name_image,'wb') as picture:
              picture.write(r.content)
              print('Storing image to the folder...')
      
  #%%
  #def download(file):
  def loop_download(ls_file,extension):
      if extension=='csv':
          ls_col_name=enter(ls_file)
          ls=dict(zip(ls_file,ls_col_name))
          download_csv(ls)
      elif extension=='txt':
          for file in ls_file:
              name=create_dir(file+'1')
              print('Creating the {0} folder\n'.format(name))
              print('Accessing the file {0}\n\n'.format(file))
              with open(file,'r') as f:
                  content=list(f)
              change_dir(name)
              down(content)
              cd()
          print('\n\n COMPLETED!!')
  
  #%%
  def download(extension):
      print('Do you want to download all the files with {0} extension [Y/N]: '.format(extension),end='')
      a=input()
      if a=='Y' or a=='y':
          ls=listing(extension) 
          if len(ls)==0:
              print('Sorry there are no files with the given extension')
          else:
              print('The files to be downloaded are:')
              for i in ls:
                  print(i)
              download_all(ls,extension)
  
  
  
  def download_all(ls,extension):
      print('Creating new folders in the location: {0}'.format(current_dir))
  #    b=input('Please confirm the location [Y/N]: ')
  #    if b=='Y' or b=='y':
      loop_download(ls,extension)
  #    elif b=='N' or b=='n':
  #        location=input('Please enter the complete location: ')
  #        change_dir(location)
  #        loop_download(ls,extension)
  #    else:
  #        print('Sorry, Unable to understand your decision')
                  
                  
  #%%
  
  
  
                      
  #%%
  #handle csv files
  
  def download_csv(ls):
      """Download the urls present in the column with the specified column name"""
      try:
          for i in ls:
              name=create_dir(i+'1')
              print('Creating the {0} folder\n'.format(name))
              print('Accessing the file {0}\n\n'.format(i))
              dataset=pa.read_csv(i)
              try:
                  dataset=dataset[ls[i]]
                  down(dataset)
              except KeyError:
                  print('Specified column does not exist')
              change_dir(name)
              down(dataset)
              cd()
          print('\n\n COMPLETED!!')      
      except FileNotFoundError:
          print('No file found in the directory')
          print('Please check the location of the file and try again')
      
          #%%
  #enter the column names
          
  def enter(ls):
      print('Please enter the name of the columns containing the urls')
      l=[]
      for i in ls:
          a=input(i+' : ')
          l.append(a)
      return l
  
  
  #%%            
              
              
  #            select the to-be-downloaded data on the basis of extension(jpg,jpeg,JPG,JPEG,png,PNG)
  #            no gifs