Update calver version number (#835)

[etc/vim.git] / black.py

diff --git a/black.py b/black.py
index db1b2b6caa4192bd1a5e1479a680bf2b6f5689b5..9ecfbe18fe8443a6bb9c7640de036523127cad35 100644 (file)
--- a/black.py
+++ b/black.py
@@ -49,7 +49,7 @@ from blib2to3.pgen2.grammar import Grammar
 from blib2to3.pgen2.parse import ParseError
 
 
 from blib2to3.pgen2.parse import ParseError
 
 

-__version__ = "18.9b0"
+__version__ = "19.3b0"

 DEFAULT_LINE_LENGTH = 88
 DEFAULT_EXCLUDES = (
     r"/(\.eggs|\.git|\.hg|\.mypy_cache|\.nox|\.tox|\.venv|_build|buck-out|build|dist)/"
 DEFAULT_LINE_LENGTH = 88
 DEFAULT_EXCLUDES = (
     r"/(\.eggs|\.git|\.hg|\.mypy_cache|\.nox|\.tox|\.venv|_build|buck-out|build|dist)/"


@@ -68,7 +68,7 @@ LeafID = int
 Priority = int
 Index = int
 LN = Union[Leaf, Node]
 Priority = int
 Index = int
 LN = Union[Leaf, Node]

-SplitFunc = Callable[["Line", bool], Iterator["Line"]]
+SplitFunc = Callable[["Line", Collection["Feature"]], Iterator["Line"]]

 Timestamp = float
 FileSize = int
 CacheInfo = Tuple[Timestamp, FileSize]
 Timestamp = float
 FileSize = int
 CacheInfo = Tuple[Timestamp, FileSize]


@@ -133,31 +133,35 @@ class Feature(Enum):
     UNICODE_LITERALS = 1
     F_STRINGS = 2
     NUMERIC_UNDERSCORES = 3
     UNICODE_LITERALS = 1
     F_STRINGS = 2
     NUMERIC_UNDERSCORES = 3

-    TRAILING_COMMA = 4
+    TRAILING_COMMA_IN_CALL = 4
+    TRAILING_COMMA_IN_DEF = 5

 
 
 VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
     TargetVersion.PY27: set(),
     TargetVersion.PY33: {Feature.UNICODE_LITERALS},
     TargetVersion.PY34: {Feature.UNICODE_LITERALS},
 
 
 VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
     TargetVersion.PY27: set(),
     TargetVersion.PY33: {Feature.UNICODE_LITERALS},
     TargetVersion.PY34: {Feature.UNICODE_LITERALS},

-    TargetVersion.PY35: {Feature.UNICODE_LITERALS, Feature.TRAILING_COMMA},
+    TargetVersion.PY35: {Feature.UNICODE_LITERALS, Feature.TRAILING_COMMA_IN_CALL},

     TargetVersion.PY36: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
     TargetVersion.PY36: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,

-        Feature.TRAILING_COMMA,
+        Feature.TRAILING_COMMA_IN_CALL,
+        Feature.TRAILING_COMMA_IN_DEF,

     },
     TargetVersion.PY37: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
     },
     TargetVersion.PY37: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,

-        Feature.TRAILING_COMMA,
+        Feature.TRAILING_COMMA_IN_CALL,
+        Feature.TRAILING_COMMA_IN_DEF,

     },
     TargetVersion.PY38: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
     },
     TargetVersion.PY38: {
         Feature.UNICODE_LITERALS,
         Feature.F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,

-        Feature.TRAILING_COMMA,
+        Feature.TRAILING_COMMA_IN_CALL,
+        Feature.TRAILING_COMMA_IN_DEF,

     },
 }
 
     },
 }
 


@@ -246,6 +250,16 @@ def read_pyproject_toml(
         "per-file auto-detection]"
     ),
 )
         "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. Deprecated; use --target-version instead. "
+        "[default: per-file auto-detection]"
+    ),
+)

 @click.option(
     "--pyi",
     is_flag=True,
 @click.option(
     "--pyi",
     is_flag=True,


@@ -349,6 +363,7 @@ def main(
     diff: bool,
     fast: bool,
     pyi: bool,
     diff: bool,
     fast: bool,
     pyi: bool,

+    py36: bool,

     skip_string_normalization: bool,
     quiet: bool,
     verbose: bool,
     skip_string_normalization: bool,
     quiet: bool,
     verbose: bool,


@@ -360,7 +375,17 @@ def main(
     """The uncompromising code formatter."""
     write_back = WriteBack.from_configuration(check=check, diff=diff)
     if target_version:
     """The uncompromising code formatter."""
     write_back = WriteBack.from_configuration(check=check, diff=diff)
     if target_version:

-        versions = set(target_version)
+        if py36:
+            err(f"Cannot use both --target-version and --py36")
+            ctx.exit(2)
+        else:
+            versions = set(target_version)
+    elif py36:
+        err(
+            "--py36 is deprecated and will be removed in a future version. "
+            "Use --target-version py36 instead."
+        )
+        versions = PY36_VERSIONS

     else:
         # We'll autodetect later.
         versions = set()
     else:
         # We'll autodetect later.
         versions = set()


@@ -501,12 +526,14 @@ async def schedule_formatting(
         manager = Manager()
         lock = manager.Lock()
     tasks = {
         manager = Manager()
         lock = manager.Lock()
     tasks = {

-        loop.run_in_executor(
-            executor, format_file_in_place, src, fast, mode, write_back, lock
+        asyncio.ensure_future(
+            loop.run_in_executor(
+                executor, format_file_in_place, src, fast, mode, write_back, lock
+            )

         ): src
         for src in sorted(sources)
     }
         ): src
         for src in sorted(sources)
     }

-    pending: Iterable[asyncio.Task] = tasks.keys()
+    pending: Iterable[asyncio.Future] = tasks.keys()

     try:
         loop.add_signal_handler(signal.SIGINT, cancel, pending)
         loop.add_signal_handler(signal.SIGTERM, cancel, pending)
     try:
         loop.add_signal_handler(signal.SIGINT, cancel, pending)
         loop.add_signal_handler(signal.SIGTERM, cancel, pending)


@@ -662,6 +689,11 @@ def format_str(src_contents: str, *, mode: FileMode) -> FileContent:
     elt = EmptyLineTracker(is_pyi=mode.is_pyi)
     empty_line = Line()
     after = 0
     elt = EmptyLineTracker(is_pyi=mode.is_pyi)
     empty_line = Line()
     after = 0

+    split_line_features = {
+        feature
+        for feature in {Feature.TRAILING_COMMA_IN_CALL, Feature.TRAILING_COMMA_IN_DEF}
+        if supports_feature(versions, feature)
+    }

     for current_line in lines.visit(src_node):
         for _ in range(after):
             dst_contents += str(empty_line)
     for current_line in lines.visit(src_node):
         for _ in range(after):
             dst_contents += str(empty_line)


@@ -669,9 +701,7 @@ def format_str(src_contents: str, *, mode: FileMode) -> FileContent:
         for _ in range(before):
             dst_contents += str(empty_line)
         for line in split_line(
         for _ in range(before):
             dst_contents += str(empty_line)
         for line in split_line(

-            current_line,
-            line_length=mode.line_length,
-            supports_trailing_commas=supports_feature(versions, Feature.TRAILING_COMMA),
+            current_line, line_length=mode.line_length, features=split_line_features

         ):
             dst_contents += str(line)
     return dst_contents
         ):
             dst_contents += str(line)
     return dst_contents


@@ -694,24 +724,20 @@ def decode_bytes(src: bytes) -> Tuple[FileContent, Encoding, NewLine]:
         return tiow.read(), encoding, newline
 
 
         return tiow.read(), encoding, newline
 
 

-GRAMMARS = [
-    pygram.python_grammar_no_print_statement_no_exec_statement,
-    pygram.python_grammar_no_print_statement,
-    pygram.python_grammar,
-]
-
-

 def get_grammars(target_versions: Set[TargetVersion]) -> List[Grammar]:
     if not target_versions:
 def get_grammars(target_versions: Set[TargetVersion]) -> List[Grammar]:
     if not target_versions:

-        return GRAMMARS
-    elif all(not version.is_python2() for version in target_versions):
-        # Python 2-compatible code, so don't try Python 3 grammar.
+        # No target_version specified, so try all grammars.

         return [
             pygram.python_grammar_no_print_statement_no_exec_statement,
             pygram.python_grammar_no_print_statement,
         return [
             pygram.python_grammar_no_print_statement_no_exec_statement,
             pygram.python_grammar_no_print_statement,

+            pygram.python_grammar,

         ]
         ]

+    elif all(version.is_python2() for version in target_versions):
+        # Python 2-only code, so try Python 2 grammars.
+        return [pygram.python_grammar_no_print_statement, pygram.python_grammar]

     else:
     else:

-        return [pygram.python_grammar]
+        # Python 3-compatible code, so only try Python 3 grammar.
+        return [pygram.python_grammar_no_print_statement_no_exec_statement]

 
 
 def lib2to3_parse(src_txt: str, target_versions: Iterable[TargetVersion] = ()) -> Node:
 
 
 def lib2to3_parse(src_txt: str, target_versions: Iterable[TargetVersion] = ()) -> Node:


@@ -1192,6 +1218,29 @@ class Line:
             if leaf.type == STANDALONE_COMMENT:
                 if leaf.bracket_depth <= depth_limit:
                     return True
             if leaf.type == STANDALONE_COMMENT:
                 if leaf.bracket_depth <= depth_limit:
                     return True

+        return False
+
+    def contains_inner_type_comments(self) -> bool:
+        ignored_ids = set()
+        try:
+            last_leaf = self.leaves[-1]
+            ignored_ids.add(id(last_leaf))
+            if last_leaf.type == token.COMMA:
+                # When trailing commas are inserted by Black for consistency, comments
+                # after the previous last element are not moved (they don't have to,
+                # rendering will still be correct).  So we ignore trailing commas.
+                last_leaf = self.leaves[-2]
+                ignored_ids.add(id(last_leaf))
+        except IndexError:
+            return False
+
+        for leaf_id, comments in self.comments.items():
+            if leaf_id in ignored_ids:
+                continue
+
+            for comment in comments:
+                if is_type_comment(comment):
+                    return True

 
         return False
 
 
         return False
 


@@ -2118,7 +2167,7 @@ def split_line(
     line: Line,
     line_length: int,
     inner: bool = False,
     line: Line,
     line_length: int,
     inner: bool = False,

-    supports_trailing_commas: bool = False,
+    features: Collection[Feature] = (),

 ) -> Iterator[Line]:
     """Split a `line` into potentially many lines.
 
 ) -> Iterator[Line]:
     """Split a `line` into potentially many lines.
 


@@ -2127,7 +2176,7 @@ def split_line(
     current `line`, possibly transitively. This means we can fallback to splitting
     by delimiters if the LHS/RHS don't yield any results.
 
     current `line`, possibly transitively. This means we can fallback to splitting
     by delimiters if the LHS/RHS don't yield any results.
 

-    If `supports_trailing_commas` is True, splitting may use the TRAILING_COMMA feature.
+    `features` are syntactical features that may be used in the output.

     """
     if line.is_comment:
         yield line
     """
     if line.is_comment:
         yield line


@@ -2135,16 +2184,8 @@ def split_line(
 
     line_str = str(line).strip("\n")
 
 
     line_str = str(line).strip("\n")
 

-    # we don't want to split special comments like type annotations
-    # https://github.com/python/typing/issues/186
-    has_special_comment = False
-    for leaf in line.leaves:
-        for comment in line.comments_after(leaf):
-            if leaf.type == token.COMMA and is_special_comment(comment):
-                has_special_comment = True
-

     if (
     if (

-        not has_special_comment
+        not line.contains_inner_type_comments()

         and not line.should_explode
         and is_line_short_enough(line, line_length=line_length, line_str=line_str)
     ):
         and not line.should_explode
         and is_line_short_enough(line, line_length=line_length, line_str=line_str)
     ):


@@ -2156,13 +2197,9 @@ def split_line(
         split_funcs = [left_hand_split]
     else:
 
         split_funcs = [left_hand_split]
     else:
 

-        def rhs(line: Line, supports_trailing_commas: bool = False) -> Iterator[Line]:
+        def rhs(line: Line, features: Collection[Feature]) -> Iterator[Line]:

             for omit in generate_trailers_to_omit(line, line_length):
             for omit in generate_trailers_to_omit(line, line_length):

-                lines = list(
-                    right_hand_split(
-                        line, line_length, supports_trailing_commas, omit=omit
-                    )
-                )
+                lines = list(right_hand_split(line, line_length, features, omit=omit))

                 if is_line_short_enough(lines[0], line_length=line_length):
                     yield from lines
                     return
                 if is_line_short_enough(lines[0], line_length=line_length):
                     yield from lines
                     return


@@ -2170,7 +2207,7 @@ def split_line(
             # All splits failed, best effort split with no omits.
             # This mostly happens to multiline strings that are by definition
             # reported as not fitting a single line.
             # All splits failed, best effort split with no omits.
             # This mostly happens to multiline strings that are by definition
             # reported as not fitting a single line.

-            yield from right_hand_split(line, supports_trailing_commas)
+            yield from right_hand_split(line, line_length, features=features)

 
         if line.inside_brackets:
             split_funcs = [delimiter_split, standalone_comment_split, rhs]
 
         if line.inside_brackets:
             split_funcs = [delimiter_split, standalone_comment_split, rhs]


@@ -2182,16 +2219,13 @@ def split_line(
         # split altogether.
         result: List[Line] = []
         try:
         # split altogether.
         result: List[Line] = []
         try:

-            for l in split_func(line, supports_trailing_commas):
+            for l in split_func(line, features):

                 if str(l).strip("\n") == line_str:
                     raise CannotSplit("Split function returned an unchanged result")
 
                 result.extend(
                     split_line(
                 if str(l).strip("\n") == line_str:
                     raise CannotSplit("Split function returned an unchanged result")
 
                 result.extend(
                     split_line(

-                        l,
-                        line_length=line_length,
-                        inner=True,
-                        supports_trailing_commas=supports_trailing_commas,
+                        l, line_length=line_length, inner=True, features=features

                     )
                 )
         except CannotSplit:
                     )
                 )
         except CannotSplit:


@@ -2205,9 +2239,7 @@ def split_line(
         yield line
 
 
         yield line
 
 

-def left_hand_split(
-    line: Line, supports_trailing_commas: bool = False
-) -> Iterator[Line]:
+def left_hand_split(line: Line, features: Collection[Feature] = ()) -> Iterator[Line]:

     """Split line into many lines, starting with the first matching bracket pair.
 
     Note: this usually looks weird, only use this for function definitions.
     """Split line into many lines, starting with the first matching bracket pair.
 
     Note: this usually looks weird, only use this for function definitions.


@@ -2246,7 +2278,7 @@ def left_hand_split(
 def right_hand_split(
     line: Line,
     line_length: int,
 def right_hand_split(
     line: Line,
     line_length: int,

-    supports_trailing_commas: bool = False,
+    features: Collection[Feature] = (),

     omit: Collection[LeafID] = (),
 ) -> Iterator[Line]:
     """Split line into many lines, starting with the last matching bracket pair.
     omit: Collection[LeafID] = (),
 ) -> Iterator[Line]:
     """Split line into many lines, starting with the last matching bracket pair.


@@ -2305,12 +2337,7 @@ def right_hand_split(
     ):
         omit = {id(closing_bracket), *omit}
         try:
     ):
         omit = {id(closing_bracket), *omit}
         try:

-            yield from right_hand_split(
-                line,
-                line_length,
-                supports_trailing_commas=supports_trailing_commas,
-                omit=omit,
-            )
+            yield from right_hand_split(line, line_length, features=features, omit=omit)

             return
 
         except CannotSplit:
             return
 
         except CannotSplit:


@@ -2378,10 +2405,17 @@ def bracket_split_build_line(
         if leaves:
             # Since body is a new indent level, remove spurious leading whitespace.
             normalize_prefix(leaves[0], inside_brackets=True)
         if leaves:
             # Since body is a new indent level, remove spurious leading whitespace.
             normalize_prefix(leaves[0], inside_brackets=True)

-            # Ensure a trailing comma when expected.
+            # Ensure a trailing comma for imports, but be careful not to add one after
+            # any comments.

             if original.is_import:
             if original.is_import:

-                if leaves[-1].type != token.COMMA:
-                    leaves.append(Leaf(token.COMMA, ","))
+                for i in range(len(leaves) - 1, -1, -1):
+                    if leaves[i].type == STANDALONE_COMMENT:
+                        continue
+                    elif leaves[i].type == token.COMMA:
+                        break
+                    else:
+                        leaves.insert(i + 1, Leaf(token.COMMA, ","))
+                        break

     # Populate the line
     for leaf in leaves:
         result.append(leaf, preformatted=True)
     # Populate the line
     for leaf in leaves:
         result.append(leaf, preformatted=True)


@@ -2399,10 +2433,8 @@ def dont_increase_indentation(split_func: SplitFunc) -> SplitFunc:
     """
 
     @wraps(split_func)
     """
 
     @wraps(split_func)

-    def split_wrapper(
-        line: Line, supports_trailing_commas: bool = False
-    ) -> Iterator[Line]:
-        for l in split_func(line, supports_trailing_commas):
+    def split_wrapper(line: Line, features: Collection[Feature] = ()) -> Iterator[Line]:
+        for l in split_func(line, features):

             normalize_prefix(l.leaves[0], inside_brackets=True)
             yield l
 
             normalize_prefix(l.leaves[0], inside_brackets=True)
             yield l
 


@@ -2410,13 +2442,11 @@ def dont_increase_indentation(split_func: SplitFunc) -> SplitFunc:
 
 
 @dont_increase_indentation
 
 
 @dont_increase_indentation

-def delimiter_split(
-    line: Line, supports_trailing_commas: bool = False
-) -> Iterator[Line]:
+def delimiter_split(line: Line, features: Collection[Feature] = ()) -> Iterator[Line]:

     """Split according to delimiters of the highest priority.
 
     """Split according to delimiters of the highest priority.
 

-    If `supports_trailing_commas` is True, the split will add trailing commas
-    also in function signatures that contain `*` and `**`.
+    If the appropriate Features are given, the split will add trailing commas
+    also in function signatures and calls that contain `*` and `**`.

     """
     try:
         last_leaf = line.leaves[-1]
     """
     try:
         last_leaf = line.leaves[-1]


@@ -2455,10 +2485,16 @@ def delimiter_split(
             yield from append_to_line(comment_after)
 
         lowest_depth = min(lowest_depth, leaf.bracket_depth)
             yield from append_to_line(comment_after)
 
         lowest_depth = min(lowest_depth, leaf.bracket_depth)

-        if leaf.bracket_depth == lowest_depth and is_vararg(
-            leaf, within=VARARGS_PARENTS
-        ):
-            trailing_comma_safe = trailing_comma_safe and supports_trailing_commas
+        if leaf.bracket_depth == lowest_depth:
+            if is_vararg(leaf, within={syms.typedargslist}):
+                trailing_comma_safe = (
+                    trailing_comma_safe and Feature.TRAILING_COMMA_IN_DEF in features
+                )
+            elif is_vararg(leaf, within={syms.arglist, syms.argument}):
+                trailing_comma_safe = (
+                    trailing_comma_safe and Feature.TRAILING_COMMA_IN_CALL in features
+                )
+

         leaf_priority = bt.delimiters.get(id(leaf))
         if leaf_priority == delimiter_priority:
             yield current_line
         leaf_priority = bt.delimiters.get(id(leaf))
         if leaf_priority == delimiter_priority:
             yield current_line


@@ -2477,7 +2513,7 @@ def delimiter_split(
 
 @dont_increase_indentation
 def standalone_comment_split(
 
 @dont_increase_indentation
 def standalone_comment_split(

-    line: Line, supports_trailing_commas: bool = False
+    line: Line, features: Collection[Feature] = ()

 ) -> Iterator[Line]:
     """Split standalone comments from the rest of the line."""
     if not line.contains_standalone_comments(0):
 ) -> Iterator[Line]:
     """Split standalone comments from the rest of the line."""
     if not line.contains_standalone_comments(0):


@@ -2520,14 +2556,12 @@ def is_import(leaf: Leaf) -> bool:
     )
 
 
     )
 
 

-def is_special_comment(leaf: Leaf) -> bool:
+def is_type_comment(leaf: Leaf) -> bool:

     """Return True if the given leaf is a special comment.
     Only returns true for type comments for now."""
     t = leaf.type
     v = leaf.value
     """Return True if the given leaf is a special comment.
     Only returns true for type comments for now."""
     t = leaf.type
     v = leaf.value

-    return bool(
-        (t == token.COMMENT or t == STANDALONE_COMMENT) and (v.startswith("# type:"))
-    )
+    return t in {token.COMMENT, t == STANDALONE_COMMENT} and v.startswith("# type:")

 
 
 def normalize_prefix(leaf: Leaf, *, inside_brackets: bool) -> None:
 
 
 def normalize_prefix(leaf: Leaf, *, inside_brackets: bool) -> None:


@@ -3029,14 +3063,19 @@ def get_features_used(node: Node) -> Set[Feature]:
             and n.children
             and n.children[-1].type == token.COMMA
         ):
             and n.children
             and n.children[-1].type == token.COMMA
         ):

+            if n.type == syms.typedargslist:
+                feature = Feature.TRAILING_COMMA_IN_DEF
+            else:
+                feature = Feature.TRAILING_COMMA_IN_CALL
+

             for ch in n.children:
                 if ch.type in STARS:
             for ch in n.children:
                 if ch.type in STARS:

-                    features.add(Feature.TRAILING_COMMA)
+                    features.add(feature)

 
                 if ch.type == syms.argument:
                     for argch in ch.children:
                         if argch.type in STARS:
 
                 if ch.type == syms.argument:
                     for argch in ch.children:
                         if argch.type in STARS:

-                            features.add(Feature.TRAILING_COMMA)
+                            features.add(feature)

 
     return features
 
 
     return features
 


@@ -3116,7 +3155,7 @@ def get_future_imports(node: Node) -> Set[str]:
             elif child.type == syms.import_as_names:
                 yield from get_imports_from_children(child.children)
             else:
             elif child.type == syms.import_as_names:
                 yield from get_imports_from_children(child.children)
             else:

-                assert False, "Invalid syntax parsing imports"
+                raise AssertionError("Invalid syntax parsing imports")

 
     for child in node.children:
         if child.type != syms.simple_stmt:
 
     for child in node.children:
         if child.type != syms.simple_stmt:


@@ -3356,7 +3395,7 @@ def assert_equivalent(src: str, dst: str) -> None:
         log = dump_to_file("".join(traceback.format_tb(exc.__traceback__)), dst)
         raise AssertionError(
             f"INTERNAL ERROR: Black produced invalid code: {exc}. "
         log = dump_to_file("".join(traceback.format_tb(exc.__traceback__)), dst)
         raise AssertionError(
             f"INTERNAL ERROR: Black produced invalid code: {exc}. "

-            f"Please report a bug on https://github.com/ambv/black/issues.  "
+            f"Please report a bug on https://github.com/python/black/issues.  "

             f"This invalid output might be helpful: {log}"
         ) from None
 
             f"This invalid output might be helpful: {log}"
         ) from None
 


@@ -3367,7 +3406,7 @@ def assert_equivalent(src: str, dst: str) -> None:
         raise AssertionError(
             f"INTERNAL ERROR: Black produced code that is not equivalent to "
             f"the source.  "
         raise AssertionError(
             f"INTERNAL ERROR: Black produced code that is not equivalent to "
             f"the source.  "

-            f"Please report a bug on https://github.com/ambv/black/issues.  "
+            f"Please report a bug on https://github.com/python/black/issues.  "

             f"This diff might be helpful: {log}"
         ) from None
 
             f"This diff might be helpful: {log}"
         ) from None
 


@@ -3383,7 +3422,7 @@ def assert_stable(src: str, dst: str, mode: FileMode) -> None:
         raise AssertionError(
             f"INTERNAL ERROR: Black produced different code on the second pass "
             f"of the formatter.  "
         raise AssertionError(
             f"INTERNAL ERROR: Black produced different code on the second pass "
             f"of the formatter.  "

-            f"Please report a bug on https://github.com/ambv/black/issues.  "
+            f"Please report a bug on https://github.com/python/black/issues.  "

             f"This diff might be helpful: {log}"
         ) from None
 
             f"This diff might be helpful: {log}"
         ) from None