  from django.forms.utils import flatatt, pretty_name
  from django.forms.widgets import Textarea, TextInput
  from django.utils import six
  from django.utils.deprecation import RemovedInDjango21Warning
  from django.utils.encoding import force_text, python_2_unicode_compatible
  from django.utils.functional import cached_property
  from django.utils.html import conditional_escape, format_html, html_safe
  from django.utils.inspect import func_supports_parameter
  from django.utils.safestring import mark_safe
  from django.utils.translation import ugettext_lazy as _
 
</s> remove from django.utils.encoding import force_text, python_2_unicode_compatible
 </s> add from django.utils.encoding import force_text </s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove from django.utils.encoding import (
    force_str, force_text, python_2_unicode_compatible,
)
 </s> add from django.utils.encoding import force_str, force_text </s> remove from django.utils.encoding import force_text, python_2_unicode_compatible
 </s> add from django.utils.encoding import force_text </s> remove from django.utils.encoding import force_text, python_2_unicode_compatible
 </s> add from django.utils.encoding import force_text
from django.utils.encoding import force_text
  from django.forms.utils import flatatt, pretty_name
  from django.forms.widgets import Textarea, TextInput
  from django.utils import six
  from django.utils.deprecation import RemovedInDjango21Warning
from django.utils.encoding import force_text
  from django.utils.functional import cached_property
  from django.utils.html import conditional_escape, format_html, html_safe
  from django.utils.inspect import func_supports_parameter
  from django.utils.safestring import mark_safe
  from django.utils.translation import ugettext_lazy as _
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
django/forms/boundfield.py