text: """db_access is a compendium of high-level python functions to mess around with a database."""
  
  import sqlite3
  import pandas as pd
  
  def connect(db_file):
      """
      Connect to an existing sqlite database file.
  
      :param db_file: string - path to database file
      :return: connection object or None
      """
      try:
          conn = sqlite3.connect(db_file)
          c = conn.cursor()
          return conn, c
      except sqlite3.Error as err:
          print(err)
  
  def close(conn, commit='Yes'):
      """Close connection to the database, commit or dont."""
      if commit == 'Yes':
          conn.commit()
      conn.close()
  
  def get_tables(c, verbose=False):
      """Get all table names in the database."""
      c.execute("SELECT name FROM sqlite_master WHERE type='table';")
      tabs = c.fetchall()
      if verbose:
          print(tabs)
      return tabs
  
  def get_columns(c, table, verbose=False):
      """Get all columns in a specified table."""
      head = c.execute("select * from " + table)
      names = list(map(lambda x: x[0], head.description))
      if verbose:
          print(names)
      return(names)
  