make phonenumbers and django-phonenumber-field optional

setup.py

@@ -15,16 +15,21 @@
         'Django>=3.2',
         'django_otp>=0.8.0',
         'qrcode>=4.0.0,<7.99',
-        'django-phonenumber-field<8',
         'django-formtools',
     ],
     extras_require={
         'call': ['twilio>=6.0'],
         'sms': ['twilio>=6.0'],
         'webauthn': ['webauthn>=2.0,<2.99'],
         'yubikey': ['django-otp-yubikey'],
-        'phonenumbers': ['phonenumbers>=7.0.9,<8.99'],
-        'phonenumberslite': ['phonenumberslite>=7.0.9,<8.99'],
+        'phonenumbers': [
+            'phonenumbers>=7.0.9,<8.99',
+            'django-phonenumber-field<8',
+        ],
+        'phonenumberslite': [
+            'phonenumberslite>=7.0.9,<8.99',
+            'django-phonenumber-field<8',
+        ],
         # used internally for local development & CI
         'tests': [
             'coverage',

two_factor/migrations/0003_auto_20150817_1733.py

@@ -1,13 +1,14 @@
 import logging
 
-import phonenumbers
+from django.apps import apps
 from django.db import migrations
-from phonenumber_field.modelfields import PhoneNumberField
 
 logger = logging.getLogger(__name__)
 
 
 def migrate_phone_numbers(apps, schema_editor):
+    import phonenumbers
+
     PhoneDevice = apps.get_model("two_factor", "PhoneDevice")
     for device in PhoneDevice.objects.all():
         try:
@@ -29,11 +30,17 @@ class Migration(migrations.Migration):
         ('two_factor', '0002_auto_20150110_0810'),
     ]
 
-    operations = [
-        migrations.RunPython(migrate_phone_numbers, reverse_code=migrations.RunPython.noop),
-        migrations.AlterField(
-            model_name='phonedevice',
-            name='number',
-            field=PhoneNumberField(max_length=16, verbose_name='number'),
-        ),
-    ]
+    if apps.is_installed('two_factor.plugins.phonenumber'):
+        from phonenumber_field.modelfields import PhoneNumberField
+
+        operations = [
+            migrations.RunPython(migrate_phone_numbers, reverse_code=migrations.RunPython.noop),
+            migrations.AlterField(
+                model_name='phonedevice',
+                name='number',
+                field=PhoneNumberField(max_length=16, verbose_name='number'),
+            ),
+        ]
+
+    else:
+        operations = []

two_factor/migrations/0004_auto_20160205_1827.py

@@ -1,6 +1,5 @@
 # Generated by Django 1.9.2 on 2016-02-05 17:27
-
-import phonenumber_field.modelfields
+from django.apps import apps
 from django.db import migrations
 
 
@@ -10,10 +9,15 @@ class Migration(migrations.Migration):
         ('two_factor', '0003_auto_20150817_1733'),
     ]
 
-    operations = [
-        migrations.AlterField(
-            model_name='phonedevice',
-            name='number',
-            field=phonenumber_field.modelfields.PhoneNumberField(max_length=128),
-        ),
-    ]
+    if apps.is_installed('two_factor.plugins.phonenumber'):
+        import phonenumber_field.modelfields
+
+        operations = [
+            migrations.AlterField(
+                model_name='phonedevice',
+                name='number',
+                field=phonenumber_field.modelfields.PhoneNumberField(max_length=128),
+            ),
+        ]
+    else:
+        operations = []

two_factor/plugins/phonenumber/utils.py

@@ -1,6 +1,5 @@
 import re
 
-import phonenumbers
 from django.conf import settings
 from django.utils.translation import gettext_lazy as _
 
@@ -39,6 +38,8 @@ def mask_phone_number(number):
     :param number: str or phonenumber object
     :return: str
     """
+    import phonenumbers
+
     if isinstance(number, phonenumbers.PhoneNumber):
         number = format_phone_number(number)
     return phone_mask.sub('*', number)
@@ -50,6 +51,8 @@ def format_phone_number(number):
     :param number: str or phonenumber object
     :return: str
     """
+    import phonenumbers
+
     if not isinstance(number, phonenumbers.PhoneNumber):
         number = phonenumbers.parse(number)
     return phonenumbers.format_number(number, phonenumbers.PhoneNumberFormat.INTERNATIONAL)