add check-completeness script

check_completeness.py

@@ -0,0 +1,42 @@
+"""
+PYTHONPATH=../dataframe-api/spec/API_specification/ python check_completeness.py
+"""
+
+import dataframe_api
+from dataframe_api_compat import pandas_standard, polars_standard
+import pandas as pd
+import polars as pl
+
+# dataframe
+spec = dataframe_api.DataFrame().__dir__()
+pandas_spec = pandas_standard.PandasDataFrame(pd.DataFrame()).__dir__()
+polars_spec = polars_standard.PolarsDataFrame(pl.DataFrame()).__dir__()
+
+for i in spec:
+    if i not in pandas_spec:
+        print(f"DataFrame.{i} missing from pandas spec!")
+    if i not in polars_spec:
+        print(f"DataFrame.{i} missing from pandas spec!")
+
+# series
+spec = dataframe_api.Column().__dir__()
+pandas_spec = pandas_standard.PandasColumn(pd.Series()).__dir__()
+polars_spec = polars_standard.PolarsColumn(pl.Series()).__dir__()
+
+for i in spec:
+    if i not in pandas_spec:
+        print(f"Series.{i} missing from pandas spec!")
+    if i not in polars_spec:
+        print(f"Series.{i} missing from pandas spec!")
+
+# namespace
+exclude = {"Mapping", "column_object", "dataframe_object", "groupby_object", "DType"}
+spec = [i for i in dataframe_api.__dir__() if i not in exclude and not i.startswith("_")]
+pandas_spec = pandas_standard.__dir__()
+polars_spec = polars_standard.__dir__()
+
+for i in spec:
+    if i not in pandas_spec:
+        print(f"Series.{i} missing from pandas spec!")
+    if i not in polars_spec:
+        print(f"Series.{i} missing from pandas spec!")