Source file structure

Wrappers:
   baf.bat	
   baf.sh	

CLI:
   docopt.py	
   prototyping:
      cli_dates.py	
  
Configuration:
   config_folders.py	
   global_ini.py	
  
Main:
   bankform.py	

Calls from bankform.py:
   database.py	(may split to generic and specific functions)
   download.py	
   make_csv.py	 
   private_form_txt.py	(may rename to make_csv_private_data.py)	 
   make_xlsx.py

Sub-modules:
   date_engine.py	
   make_url.py	 
   conn.py	
   terminal.py	
   unpack.py

   May rename sub-modules to _date_engine, etc
   
End-use:
   pandas-interface.py