[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/pyhf/contrib/utils.py

@@ -115,7 +115,7 @@ def download(archive_url, output_directory, force=False, compress=False):
                         # directory up and then renamed as the name of the
                         # zipfile directory is set at zipfile creation time and
                         # isn't knowable in advance.
-                        child_path = [child for child in output_directory.iterdir()][0]
+                        child_path = next(iter(output_directory.iterdir()))
                         _tmp_path = output_directory.parent.joinpath(
                             Path(output_directory.name + "__tmp__")
                         )

src/pyhf/contrib/viz/brazil.py

@@ -361,9 +361,9 @@ def plot_results(test_pois, tests, test_size=0.05, ax=None, **kwargs):
     handles, labels = ax.get_legend_handles_labels()
     if not no_cls:
         for label_part in ["exp", "pm1", "pm2", "alpha"]:
-            label_idx = [
+            label_idx = next(
                 idx for idx, label in enumerate(labels) if label_part in label
-            ][0]
+            )
             handles.append(handles.pop(label_idx))
             labels.append(labels.pop(label_idx))
 

tests/test_workspace.py

@@ -378,7 +378,7 @@ def test_join_items_outer_deep(join_items):
     joined = pyhf.workspace._join_items(
         'outer', left_items, right_items, key='name', deep_merge_key='deep'
     )
-    assert [k['deep'] for k in joined if k['name'] == 'common'][0] == [
+    assert next(k['deep'] for k in joined if k['name'] == 'common') == [
         {'name': 1},
         {'name': 2},
     ]
@@ -389,7 +389,7 @@ def test_join_items_left_outer_deep(join_items):
     joined = pyhf.workspace._join_items(
         'left outer', left_items, right_items, key='name', deep_merge_key='deep'
     )
-    assert [k['deep'] for k in joined if k['name'] == 'common'][0] == [
+    assert next(k['deep'] for k in joined if k['name'] == 'common') == [
         {'name': 1},
         {'name': 2},
     ]
@@ -400,7 +400,7 @@ def test_join_items_right_outer_deep(join_items):
     joined = pyhf.workspace._join_items(
         'right outer', left_items, right_items, key='name', deep_merge_key='deep'
     )
-    assert [k['deep'] for k in joined if k['name'] == 'common'][0] == [
+    assert next(k['deep'] for k in joined if k['name'] == 'common') == [
         {'name': 2},
         {'name': 1},
     ]