chore: add compatibility with Psycopg 3

drf_extra_fields/compat.py

@@ -1,10 +1,19 @@
+import django
+
 try:
     from django.contrib.postgres.fields import FloatRangeField
 except ImportError:
     FloatRangeField = None
 
 try:
-    from psycopg2.extras import DateRange, DateTimeTZRange, NumericRange
+    if django.VERSION >= (4, 2):
+        try:
+            from psycopg.types.range import DateRange, NumericRange
+            from psycopg.types.range import TimestamptzRange as DateTimeTZRange
+        except ImportError:
+            from psycopg2.extras import DateRange, DateTimeTZRange, NumericRange
+    else:
+        from psycopg2.extras import DateRange, DateTimeTZRange, NumericRange
 except ImportError:
     DateRange = None
     DateTimeTZRange = None

requirements_dev.txt

@@ -2,4 +2,5 @@ Pillow >= 6.2.1
 pytest-django
 pytest-cov
 psycopg2-binary
+psycopg[binary]
 flake8

tox.ini

@@ -9,8 +9,9 @@ python =
 [tox]
 envlist =
     flake8,
-    py{37,38,39,310}-drf3-django{22,32}
-    py{38,39,310,311}-drf3-django{40,41,42}
+    py{37,38,39,310}-drf3-django{22,32}-psycopg2
+    py{38,39,310,311}-drf3-django{40,41}-psycopg2
+    py{38,39,310,311}-drf3-django42-psycopg{2,3}
 
 [testenv]
 deps =
@@ -20,7 +21,12 @@ deps =
     django41: Django>=4.1,<4.2
     django42: Django>=4.2,<4.3
     drf3: djangorestframework>=3
-    -r requirements_dev.txt
+    psycopg2: psycopg2-binary
+    psycopg3: psycopg[binary]
+
+    Pillow >= 6.2.1
+    pytest-django
+    pytest-cov
 commands =
     py.test {posargs} --cov-report=xml --cov