style fixes

Author: TrevorBergeron

bigframes/core/col.py

@@ -22,7 +22,7 @@
 import bigframes.operations as bf_ops
 
 
-# Not to be confused with internal Expressions class
+# Not to be confused with the Expression class in `bigframes.core.expressions`
 # Name collision unintended
 @dataclasses.dataclass(frozen=True)
 class Expression:

tests/unit/test_col.py

@@ -93,6 +93,7 @@ def test_pd_col_unary_operators(scalars_dfs, op):
         "result": op(pd.col("float64_col")),  # type: ignore
     }
     df = scalars_df.assign(**bf_kwargs)
+
     bf_result = df.to_pandas()
     pd_result = scalars_pandas_df.assign(**pd_kwargs)
 
@@ -126,6 +127,7 @@ def test_pd_col_binary_operators(scalars_dfs, op):
         "reverse_result": op(2.4, pd.col("float64_col")),  # type: ignore
     }
     df = scalars_df.assign(**bf_kwargs)
+
     bf_result = df.to_pandas()
     pd_result = scalars_pandas_df.assign(**pd_kwargs)
 
@@ -151,6 +153,7 @@ def test_pd_col_binary_bool_operators(scalars_dfs, op):
         "reverse_result": op(False, pd.col("bool_col")),  # type: ignore
     }
     df = scalars_df.assign(**bf_kwargs)
+
     bf_result = df.to_pandas()
     pd_result = scalars_pandas_df.assign(**pd_kwargs)
 

tests/unit/test_dataframe_polars.py

@@ -840,6 +840,7 @@ def test_assign_using_pd_col(scalars_dfs):
         "new_col_1": 4 - pd.col("int64_col"),  # type: ignore
         "new_col_2": pd.col("int64_col") / (pd.col("float64_col") * 0.5),  # type: ignore
     }
+
     df = scalars_df.assign(**bf_kwargs)
     bf_result = df.to_pandas()
     pd_result = scalars_pandas_df.assign(**pd_kwargs)