BUG: Attributes are lost when subsetting columns

Author: rhshadrach

asv_bench/benchmarks/frame_ctor.py

@@ -6,7 +6,7 @@
 from .pandas_vb_common import tm
 
 try:
-    from pandas.tseries.offsets import Nano, Hour
+    from pandas.tseries.offsets import Hour, Nano
 except ImportError:
     # For compatibility with older versions
     from pandas.core.datetools import *  # noqa

asv_bench/benchmarks/gil.py

@@ -7,14 +7,14 @@
 
 try:
     from pandas import (
-        rolling_median,
+        rolling_kurt,
+        rolling_max,
         rolling_mean,
+        rolling_median,
         rolling_min,
-        rolling_max,
-        rolling_var,
         rolling_skew,
-        rolling_kurt,
         rolling_std,
+        rolling_var,
     )
 
     have_rolling_methods = True

asv_bench/benchmarks/io/parsers.py

@@ -2,8 +2,8 @@
 
 try:
     from pandas._libs.tslibs.parsing import (
-        concat_date_cols,
         _does_string_look_like_datetime,
+        concat_date_cols,
     )
 except ImportError:
     # Avoid whole benchmark suite import failure on asv (currently 0.4)

asv_bench/benchmarks/tslibs/normalize.py

@@ -1,5 +1,5 @@
 try:
-    from pandas._libs.tslibs import normalize_i8_timestamps, is_date_array_normalized
+    from pandas._libs.tslibs import is_date_array_normalized, normalize_i8_timestamps
 except ImportError:
     from pandas._libs.tslibs.conversion import (
         normalize_i8_timestamps,

ci/code_checks.sh

@@ -121,7 +121,7 @@ if [[ -z "$CHECK" || "$CHECK" == "lint" ]]; then
 
     # Imports - Check formatting using isort see setup.cfg for settings
     MSG='Check import format using isort' ; echo $MSG
-    ISORT_CMD="isort --quiet --recursive --check-only pandas asv_bench scripts"
+    ISORT_CMD="isort --quiet --check-only pandas asv_bench scripts"
     if [[ "$GITHUB_ACTIONS" == "true" ]]; then
         eval $ISORT_CMD | awk '{print "##[error]" $0}'; RET=$(($RET + ${PIPESTATUS[0]}))
     else

ci/deps/azure-36-32bit.yaml

@@ -23,4 +23,4 @@ dependencies:
   - pip
   - pip:
     - cython>=0.29.16
-    - pytest>=5.0.1,<6.0.0rc0
+    - pytest>=5.0.1

ci/deps/azure-36-locale.yaml

@@ -7,7 +7,7 @@ dependencies:
 
   # tools
   - cython>=0.29.16
-  - pytest>=5.0.1,<6.0.0rc0
+  - pytest>=5.0.1
   - pytest-xdist>=1.21
   - pytest-asyncio
   - hypothesis>=3.58.0

ci/deps/azure-36-locale_slow.yaml

@@ -7,7 +7,7 @@ dependencies:
 
   # tools
   - cython>=0.29.16
-  - pytest>=5.0.1,<6.0.0rc0
+  - pytest>=5.0.1
   - pytest-xdist>=1.21
   - hypothesis>=3.58.0
   - pytest-azurepipelines

ci/deps/azure-36-slow.yaml

@@ -7,7 +7,7 @@ dependencies:
 
   # tools
   - cython>=0.29.16
-  - pytest>=5.0.1,<6.0.0rc0
+  - pytest>=5.0.1
   - pytest-xdist>=1.21
   - hypothesis>=3.58.0
 

ci/deps/azure-37-locale.yaml

@@ -6,7 +6,7 @@ dependencies:
 
   # tools
   - cython>=0.29.16
-  - pytest>=5.0.1,<6.0.0rc0
+  - pytest>=5.0.1
   - pytest-xdist>=1.21
   - pytest-asyncio
   - hypothesis>=3.58.0