headers = {'Authorization': 'Basic ' + b64_encoded_str.rstrip('\n')}
#headers = {'Authorization': 'Basic ' + '{}:{}'.format(username, password).encode("base64").rstrip('\n')}
headers = {'Authorization': 'Basic ' + b64_encoded_str.rstrip('\n')}
#headers = {'Authorization': 'Basic ' + '{}:{}'.format(username, password).encode("base64").rstrip('\n')}