code: def choose_pubaddr(self):
      if len(self.addresses) == 1:
          address = self.addresses[0]["pubAddr"]
          address_i = 0
          print("Using {} for this transaction.".format(address))
      else:
          while True:
              for i in range(0, len(self.addresses)):
                  print(
                      "{}\t{}\t{}\t{}".format(
                          i,
                          self.addresses[i]["pubAddr"],
                          self.addresses[i]["wallet"].ljust(10),
                          self.addresses[i]["desc"],
                      )
                  )
              address_i = int(
                  input(
                      "Choose your address associated with "
                      "this transaction: [default: 0] "
                  )
                  or 0
              )
              if not (0 <= address_i < len(self.addresses)):
                  print(
                      "Please choose a number between 0 and {}\n".format(
                          len(self.addresses) - 1
                      )
                  )
              else:
                  address = Web3.toChecksumAddress(
                      self.addresses[address_i]["pubAddr"]
                  )
                  break
  
      return address, address_i
  
imports: from __future__ import print_function
  import glob
  import json
  import os
  import re
  import shutil
  import sys
  import time
  import webbrowser
  import bcolz
  import logbook
  import pandas
  import requests
  from requests_toolbelt import MultipartDecoder
  from requests_toolbelt.multipart.decoder import NonMultipartContentTypeException
  from catalyst.constants import LOG_LEVEL, AUTH_SERVER, ETH_REMOTE_NODE, MARKETPLACE_CONTRACT, MARKETPLACE_CONTRACT_ABI, ENIGMA_CONTRACT, ENIGMA_CONTRACT_ABI, TERMS_AND_CONDITIONS
  from catalyst.exchange.utils.stats_utils import set_print_settings
  from catalyst.marketplace.marketplace_errors import MarketplaceDatasetNotFound, MarketplaceNoAddressMatch, MarketplaceHTTPRequest, MarketplaceNoCSVFiles, MarketplaceRequiresPython3
  from catalyst.marketplace.utils.auth_utils import get_key_secret, get_signed_headers
  from catalyst.marketplace.utils.eth_utils import bin_hex, from_grains, to_grains
  from catalyst.marketplace.utils.path_utils import get_bundle_folder, get_data_source_folder, get_marketplace_folder, get_user_pubaddr, get_temp_bundles_folder, extract_bundle, save_user_pubaddr
  from catalyst.utils.paths import ensure_directory
label_desc: Use image node_id 3 for calling the Marketplace obj's underlying member method code with example usage: obj.choose_pubaddr() and returns: address,  address_i