that's too much!

.venv/lib/python3.12/site-packages/geopandas/tests/test_api.py

@@ -0,0 +1,38 @@
+import subprocess
+import sys
+
+
+def test_no_additional_imports():
+    # test that 'import geopandas' does not import any of the optional or
+    # development dependencies
+    blacklist = {
+        "pytest",
+        "py",
+        "ipython",
+        # fiona actually gets imported if installed (but error suppressed until used)
+        # "fiona",
+        # "matplotlib",  # matplotlib gets imported by pandas, see below
+        "mapclassify",
+        # 'rtree',  # rtree actually gets imported if installed
+        "sqlalchemy",
+        "psycopg2",
+        "geopy",
+        "geoalchemy2",
+        "matplotlib",
+    }
+
+    code = """
+import sys
+import geopandas
+blacklist = {0!r}
+
+mods = blacklist & set(m.split('.')[0] for m in sys.modules)
+if mods:
+    sys.stderr.write('err: geopandas should not import: {{}}'.format(', '.join(mods)))
+    sys.exit(len(mods))
+""".format(
+        blacklist
+    )
+    call = [sys.executable, "-c", code]
+    returncode = subprocess.run(call).returncode
+    assert returncode == 0