invalid literal for int() with base 2: '110000001010100000000000% '

[jwshive]

First time user. I've setup my model as in the documentation, but attempting to save 192.168.0.1/24 as my test gets this result.

My model

class Networks(models.Model):
    ip_network = IPNetworkField()

ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/core/handlers/base.py", line 197, in _get_response
ip_management-1  |     response = wrapped_callback(request, *callback_args, **callback_kwargs)
ip_management-1  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/contrib/admin/options.py", line 688, in wrapper
ip_management-1  |     return self.admin_site.admin_view(view)(*args, **kwargs)
ip_management-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/utils/decorators.py", line 134, in _wrapper_view
ip_management-1  |     response = view_func(request, *args, **kwargs)
ip_management-1  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/views/decorators/cache.py", line 62, in _wrapper_view_func
ip_management-1  |     response = view_func(request, *args, **kwargs)
ip_management-1  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/contrib/admin/sites.py", line 242, in inner
ip_management-1  |     return view(request, *args, **kwargs)
ip_management-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/utils/decorators.py", line 46, in _wrapper
ip_management-1  |     return bound_method(*args, **kwargs)
ip_management-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/utils/decorators.py", line 134, in _wrapper_view
ip_management-1  |     response = view_func(request, *args, **kwargs)
ip_management-1  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/contrib/admin/options.py", line 2065, in changelist_view
ip_management-1  |     "selection_note": _("0 of %(cnt)s selected") % {"cnt": len(cl.result_list)},
ip_management-1  |                                                            ^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/db/models/query.py", line 380, in __len__
ip_management-1  |     self._fetch_all()
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/db/models/query.py", line 1881, in _fetch_all
ip_management-1  |     self._result_cache = list(self._iterable_class(self))
ip_management-1  |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/db/models/query.py", line 121, in __iter__
ip_management-1  |     for row in compiler.results_iter(results):
ip_management-1  |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/django/db/models/sql/compiler.py", line 1500, in apply_converters
ip_management-1  |     value = converter(value, expression, connection)
ip_management-1  |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  |   File "/usr/local/lib/python3.12/site-packages/cidrfield/models.py", line 36, in from_db_value
ip_management-1  |     string_ip = ipaddress.ip_address(int(value + '0' * (max_length-len(value)), 2)).__str__()
ip_management-1  |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ip_management-1  | ValueError: invalid literal for int() with base 2: '110000001010100000000000%                                                                                                                        '

Using:

asgiref==3.8.1
Django==4.2.15
django-cidrfield==0.2.0
psycopg2-binary==2.9.9
sqlparse==0.5.1
typing_extensions==4.12.2

Is there something I'm missing

[jwshive]

I found the issue, at least in my instance. I noticed this in your models.py
value = value[4:-1] # remove prefix and %
But noticed in the error the % was still visible.
I changed it to
value = value.strip()[4:-1] # remove prefix and %
and that seemed to work for me. I'm not sure how whitespace got in there, I entered the ip through the admin section of my django app, but there it is.

[jwshive]

I see that the latest version looks to have this fix already in, but when I pip install this module, it's not coming over.

/usr/local/lib/python3.12/site-packages/cidrfield/models.py, line 36, in from_db_value

                return None

            prefix = value[:4]

            value = value[4:-1]    # remove prefix and %

            if prefix == 'IPv4':

                max_length = ipaddress.IPV4LENGTH

            else:

                max_length = ipaddress.IPV6LENGTH

            string_ip = ipaddress.ip_address(int(value + '0' * (max_length-len(value)), 2)).__str__()
                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

     …

            string_network = string_ip + '/{}'.format(len(value))

            return ipaddress.ip_network(string_network)

        def _get_prep_value(self, value):

            if value is None or value == '':

                return None

[jwshive]

I feel foolish for not noticing earlier, pip install gets you 0.2.0 and not the release built off the master branch, which must have been updated after 11/2019.