Update Pipfile environment

[etc/vim.git] / black.py

diff --git a/black.py b/black.py
index 34bd59eacdddb8998ca7231d0c959f49f19b611e..906b5064f5992022fbd485e0a57cf19ffeffafe9 100644 (file)
--- a/black.py
+++ b/black.py
@@ -113,20 +113,19 @@ class Changed(Enum):
 
 
 class TargetVersion(Enum):
-    PYPY35 = 1
-    CPY27 = 2
-    CPY33 = 3
-    CPY34 = 4
-    CPY35 = 5
-    CPY36 = 6
-    CPY37 = 7
-    CPY38 = 8
+    PY27 = 2
+    PY33 = 3
+    PY34 = 4
+    PY35 = 5
+    PY36 = 6
+    PY37 = 7
+    PY38 = 8
 
     def is_python2(self) -> bool:
-        return self is TargetVersion.CPY27
+        return self is TargetVersion.PY27
 
 
-PY36_VERSIONS = {TargetVersion.CPY36, TargetVersion.CPY37, TargetVersion.CPY38}
+PY36_VERSIONS = {TargetVersion.PY36, TargetVersion.PY37, TargetVersion.PY38}
 
 
 class Feature(Enum):
@@ -138,24 +137,23 @@ class Feature(Enum):
 
 
 VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
-    TargetVersion.CPY27: set(),
-    TargetVersion.PYPY35: {Feature.UNICODE_LITERALS, Feature.F_STRINGS},
-    TargetVersion.CPY33: {Feature.UNICODE_LITERALS},
-    TargetVersion.CPY34: {Feature.UNICODE_LITERALS},
-    TargetVersion.CPY35: {Feature.UNICODE_LITERALS, Feature.TRAILING_COMMA},
-    TargetVersion.CPY36: {
+    TargetVersion.PY27: set(),
+    TargetVersion.PY33: {Feature.UNICODE_LITERALS},
+    TargetVersion.PY34: {Feature.UNICODE_LITERALS},
+    TargetVersion.PY35: {Feature.UNICODE_LITERALS, Feature.TRAILING_COMMA},
+    TargetVersion.PY36: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA,
     },
-    TargetVersion.CPY37: {
+    TargetVersion.PY37: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA,
     },
-    TargetVersion.CPY38: {
+    TargetVersion.PY38: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
@@ -248,15 +246,6 @@ def read_pyproject_toml(
         "per-file auto-detection]"
     ),
 )
-@click.option(
-    "--py36",
-    is_flag=True,
-    help=(
-        "Allow using Python 3.6-only syntax on all input files.  This will put "
-        "trailing commas in function signatures and calls also after *args and "
-        "**kwargs.  [default: per-file auto-detection]"
-    ),
-)
 @click.option(
     "--pyi",
     is_flag=True,
@@ -360,7 +349,6 @@ def main(
     diff: bool,
     fast: bool,
     pyi: bool,
-    py36: bool,
     skip_string_normalization: bool,
     quiet: bool,
     verbose: bool,
@@ -372,13 +360,7 @@ def main(
     """The uncompromising code formatter."""
     write_back = WriteBack.from_configuration(check=check, diff=diff)
     if target_version:
-        if py36:
-            err(f"Cannot use both --target-version and --py36")
-            ctx.exit(2)
-        else:
-            versions = set(target_version)
-    elif py36:
-        versions = PY36_VERSIONS
+        versions = set(target_version)
     else:
         # We'll autodetect later.
         versions = set()
@@ -1646,6 +1628,7 @@ class LineGenerator(Visitor[Line]):
         self.visit_expr_stmt = partial(v, keywords=Ø, parens=ASSIGNMENTS)
         self.visit_return_stmt = partial(v, keywords={"return"}, parens={"return"})
         self.visit_import_from = partial(v, keywords=Ø, parens={"import"})
+        self.visit_del_stmt = partial(v, keywords=Ø, parens={"del"})
         self.visit_async_funcdef = self.visit_async_stmt
         self.visit_decorated = self.visit_decorators
 
@@ -2445,8 +2428,8 @@ def delimiter_split(
 ) -> Iterator[Line]:
     """Split according to delimiters of the highest priority.
 
-    If `py36` is True, the split will add trailing commas also in function
-    signatures that contain `*` and `**`.
+    If `supports_trailing_commas` is True, the split will add trailing commas
+    also in function signatures that contain `*` and `**`.
     """
     try:
         last_leaf = line.leaves[-1]
@@ -3350,7 +3333,16 @@ def assert_equivalent(src: str, dst: str) -> None:
 
             if isinstance(value, list):
                 for item in value:
-                    if isinstance(item, ast.AST):
+                    # Ignore nested tuples within del statements, because we may insert
+                    # parentheses and they change the AST.
+                    if (
+                        field == "targets"
+                        and isinstance(node, ast.Delete)
+                        and isinstance(item, ast.Tuple)
+                    ):
+                        for item in item.elts:
+                            yield from _v(item, depth + 2)
+                    elif isinstance(item, ast.AST):
                         yield from _v(item, depth + 2)
 
             elif isinstance(value, ast.AST):