run darker

tools/update_whatsnew.py

@@ -7,25 +7,24 b' whatsnew/development.rst (chronologically ordered), and deletes the snippets.'
 
 import io
 import sys
-from pathlib import Path 
+from pathlib import Path
 from subprocess import check_call, check_output
 
 repo_root = Path(__file__).resolve().parent.parent
-whatsnew_dir = repo_root / 'docs' / 'source' / 'whatsnew'
-pr_dir = whatsnew_dir / 'pr'
-target = whatsnew_dir / 'development.rst'
+whatsnew_dir = repo_root / "docs" / "source" / "whatsnew"
+pr_dir = whatsnew_dir / "pr"
+target = whatsnew_dir / "development.rst"
 
 FEATURE_MARK = ".. DO NOT EDIT THIS LINE BEFORE RELEASE. FEATURE INSERTION POINT."
 INCOMPAT_MARK = ".. DO NOT EDIT THIS LINE BEFORE RELEASE. INCOMPAT INSERTION POINT."
 
 # 1. Collect the whatsnew snippet files ---------------------------------------
 
-files = set(pr_dir.glob('*.rst'))
+files = set(pr_dir.glob("*.rst"))
 # Ignore explanatory and example files
-files.difference_update({pr_dir / f for f in {
-                         'incompat-switching-to-perl.rst',
-                         'antigravity-feature.rst'}
-                         })
+files.difference_update(
+    {pr_dir / f for f in {"incompat-switching-to-perl.rst", "antigravity-feature.rst"}}
+)
 
 if not files:
     print("No automatic update available for what's new")
@@ -33,30 +32,31 b' if not files:'
 
 
 def getmtime(f):
-    return check_output(['git', 'log', '-1', '--format="%ai"', '--', f])
+    return check_output(["git", "log", "-1", '--format="%ai"', "--", f])
+
 
 files = sorted(files, key=getmtime)
 
 features, incompats = [], []
 for path in files:
-    with io.open(path, encoding='utf-8') as f:
+    with io.open(path, encoding="utf-8") as f:
         try:
             content = f.read().rstrip()
         except Exception as e:
             raise Exception('Error reading "{}"'.format(f)) from e
 
-    if path.name.startswith('incompat-'):
+    if path.name.startswith("incompat-"):
         incompats.append(content)
     else:
         features.append(content)
 
 # Put the insertion markers back on the end, so they're ready for next time.
-feature_block = '\n\n'.join(features + [FEATURE_MARK])
-incompat_block = '\n\n'.join(incompats + [INCOMPAT_MARK])
+feature_block = "\n\n".join(features + [FEATURE_MARK])
+incompat_block = "\n\n".join(incompats + [INCOMPAT_MARK])
 
 # 2. Update the target file ---------------------------------------------------
 
-with io.open(target, encoding='utf-8') as f:
+with io.open(target, encoding="utf-8") as f:
     content = f.read()
 
 assert content.count(FEATURE_MARK) == 1
@@ -66,16 +66,16 b' content = content.replace(FEATURE_MARK, feature_block)'
 content = content.replace(INCOMPAT_MARK, incompat_block)
 
 # Clean trailing whitespace
-content = '\n'.join(l.rstrip() for l in content.splitlines())
+content = "\n".join(l.rstrip() for l in content.splitlines())
 
-with io.open(target, 'w', encoding='utf-8') as f:
+with io.open(target, "w", encoding="utf-8") as f:
     f.write(content)
 
 # 3. Stage the changes in git -------------------------------------------------
 
 for file in files:
-    check_call(['git', 'rm', file])
+    check_call(["git", "rm", file])
 
-check_call(['git', 'add', target])
+check_call(["git", "add", target])
 
 print("Merged what's new changes. Check the diff and commit the change.")