CI: tmp avoid pandas nightly in nightly-deps test build (#608)

Author: jorisvandenbossche

ci/envs/nightly-deps.yml

@@ -5,11 +5,12 @@ channels:
 dependencies:
   - libgdal-core
   - pytest
+  - pandas
   - pip
   - pip:
     - --pre --prefer-binary --index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple --extra-index-url https://pypi.fury.io/arrow-nightlies/ --extra-index-url https://pypi.org/simple
     - geopandas
     - numpy>=2.0.0.dev
     - shapely
-    - pandas
+    # - pandas
     - pyarrow

pyogrio/_compat.py

@@ -41,6 +41,7 @@
 PANDAS_GE_15 = pandas is not None and Version(pandas.__version__) >= Version("1.5.0")
 PANDAS_GE_20 = pandas is not None and Version(pandas.__version__) >= Version("2.0.0")
 PANDAS_GE_22 = pandas is not None and Version(pandas.__version__) >= Version("2.2.0")
+PANDAS_GE_23 = pandas is not None and Version(pandas.__version__) >= Version("2.3.0")
 PANDAS_GE_30 = pandas is not None and Version(pandas.__version__) >= Version("3.0.0dev")
 
 GDAL_GE_37 = __gdal_version__ >= (3, 7, 0)

pyogrio/tests/test_geopandas_io.py

@@ -23,6 +23,7 @@
     HAS_ARROW_WRITE_API,
     HAS_PYPROJ,
     PANDAS_GE_15,
+    PANDAS_GE_23,
     PANDAS_GE_30,
     SHAPELY_GE_21,
 )
@@ -1470,7 +1471,9 @@ def test_write_None_string_column(tmp_path, use_arrow):
     assert filename.exists()
 
     result_gdf = read_dataframe(filename, use_arrow=use_arrow)
-    if PANDAS_GE_30 and use_arrow:
+    if (
+        PANDAS_GE_30 or (PANDAS_GE_23 and pd.options.future.infer_string)
+    ) and use_arrow:
         assert result_gdf.object_col.dtype == "str"
         gdf["object_col"] = gdf["object_col"].astype("str")
     else: