from __future__ import annotations
"""
stuff to deal with comments and formatting on dict/list/ordereddict/set
these are not really related, formatting could be factored out as
a separate base
"""
import sys
import copy
from ruamel.yaml.compat import ordereddict
from ruamel.yaml.compat import MutableSliceableSequence, nprintf # NOQA
from ruamel.yaml.scalarstring import ScalarString
from ruamel.yaml.anchor import Anchor
from ruamel.yaml.tag import Tag
from collections.abc import MutableSet, Sized, Set, Mapping
if False: # MYPY
from typing import Any, Dict, Optional, List, Union, Optional, Iterator # NOQA
# fmt: off
__all__ = ['CommentedSeq', 'CommentedKeySeq',
'CommentedMap', 'CommentedOrderedMap',
'CommentedSet', 'comment_attrib', 'merge_attrib',
'TaggedScalar',
'C_POST', 'C_PRE', 'C_SPLIT_ON_FIRST_BLANK', 'C_BLANK_LINE_PRESERVE_SPACE',
]
# fmt: on
# splitting of comments by the scanner
# an EOLC (End-Of-Line Comment) is preceded by some token
# an FLC (Full Line Comment) is a comment not preceded by a token, i.e. # is
# the first non-blank on line
# a BL is a blank line i.e. empty or spaces/tabs only
# bits 0 and 1 are combined, you can choose only one
C_POST = 0b00
C_PRE = 0b01
C_SPLIT_ON_FIRST_BLANK = 0b10 # as C_POST, but if blank line then C_PRE all lines before
# first blank goes to POST even if no following real FLC
# (first blank -> first of post)
# 0b11 -> reserved for future use
C_BLANK_LINE_PRESERVE_SPACE = 0b100
# C_EOL_PRESERVE_SPACE2 = 0b1000
class IDX:
# temporary auto increment, so rearranging is easier
def __init__(self) -> None:
self._idx = 0
def __call__(self) -> Any:
x = self._idx
self._idx += 1
return x
def __str__(self) -> Any:
return str(self._idx)
cidx = IDX()
# more or less in order of subjective expected likelyhood
# the _POST and _PRE ones are lists themselves
C_VALUE_EOL = C_ELEM_EOL = cidx()
C_KEY_EOL = cidx()
C_KEY_PRE = C_ELEM_PRE = cidx() # not this is not value
C_VALUE_POST = C_ELEM_POST = cidx() # not this is not value
C_VALUE_PRE = cidx()
C_KEY_POST = cidx()
C_TAG_EOL = cidx()
C_TAG_POST = cidx()
C_TAG_PRE = cidx()
C_ANCHOR_EOL = cidx()
C_ANCHOR_POST = cidx()
C_ANCHOR_PRE = cidx()
comment_attrib = '_yaml_comment'
format_attrib = '_yaml_format'
line_col_attrib = '_yaml_line_col'
merge_attrib = '_yaml_merge'
class Comment:
# using sys.getsize tested the Comment objects, __slots__ makes them bigger
# and adding self.end did not matter
__slots__ = 'comment', '_items', '_post', '_pre'
attrib = comment_attrib
def __init__(self, old: bool = True) -> None:
self._pre = None if old else [] # type: ignore
self.comment = None # [post, [pre]]
# map key (mapping/omap/dict) or index (sequence/list) to a list of
# dict: post_key, pre_key, post_value, pre_value
# list: pre item, post item
self._items: Dict[Any, Any] = {}
# self._start = [] # should not put these on first item
self._post: List[Any] = [] # end of document comments
def __str__(self) -> str:
if bool(self._post):
end = ',\n end=' + str(self._post)
else:
end = ""
return f'Comment(comment={self.comment},\n items={self._items}{end})'
def _old__repr__(self) -> str:
if bool(self._post):
end = ',\n end=' + str(self._post)
else:
end = ""
try:
ln = max([len(str(k)) for k in self._items]) + 1
except ValueError:
ln = '' # type: ignore
it = ' '.join([f'{str(k) + ":":{ln}} {v}\n' for k, v in self._items.items()])
if it:
it = '\n ' + it + ' '
return f'Comment(\n start={self.comment},\n items={{{it}}}{end})'
def __repr__(self) -> str:
if self._pre is None:
return self._old__repr__()
if bool(self._post):
end = ',\n end=' + repr(self._post)
else:
end = ""
try:
ln = max([len(str(k)) for k in self._items]) + 1
except ValueError:
ln = '' # type: ignore
it = ' '.join([f'{str(k) + ":":{ln}} {v}\n' for k, v in self._items.items()])
if it:
it = '\n ' + it + ' '
return f'Comment(\n pre={self.pre},\n items={{{it}}}{end})'
@property
def items(self) -> Any:
return self._items
@property
def end(self) -> Any:
return self._post
@end.setter
def end(self, value: Any) -> None:
self._post = value
@property
def pre(self) -> Any:
return self._pre
@pre.setter
def pre(self, value: Any) -> None:
self._pre = value
def get(self, item: Any, pos: Any) -> Any:
x = self._items.get(item)
if x is None or len(x) < pos:
return None
return x[pos] # can be None
def set(self, item: Any, pos: Any, value: Any) -> Any:
x = self._items.get(item)
if x is None:
self._items[item] = x = [None] * (pos + 1)
else:
while len(x) <= pos:
x.append(None)
assert x[pos] is None
x[pos] = value
def __contains__(self, x: Any) -> Any:
# test if a substring is in any of the attached comments
if self.comment:
if self.comment[0] and x in self.comment[0].value:
return True
if self.comment[1]:
for c in self.comment[1]:
if x in c.value:
return True
for value in self.items.values():
if not value:
continue
for c in value:
if c and x in c.value:
return True
if self.end:
for c in self.end:
if x in c.value:
return True
return False
# to distinguish key from None
class NotNone:
pass # NOQA
class Format:
__slots__ = ('_flow_style',)
attrib = format_attrib
def __init__(self) -> None:
self._flow_style: Any = None
def set_flow_style(self) -> None:
self._flow_style = True
def set_block_style(self) -> None:
self._flow_style = False
def flow_style(self, default: Optional[Any] = None) -> Any:
"""if default (the flow_style) is None, the flow style tacked on to
the object explicitly will be taken. If that is None as well the
default flow style rules the format down the line, or the type
of the constituent values (simple -> flow, map/list -> block)"""
if self._flow_style is None:
return default
return self._flow_style
def __repr__(self) -> str:
return f'Format({self._flow_style})'
class LineCol:
"""
line and column information wrt document, values start at zero (0)
"""
attrib = line_col_attrib
def __init__(self) -> None:
self.line = None
self.col = None
self.data: Optional[Dict[Any, Any]] = None
def add_kv_line_col(self, key: Any, data: Any) -> None:
if self.data is None:
self.data = {}
self.data[key] = data
def key(self, k: Any) -> Any:
return self._kv(k, 0, 1)
def value(self, k: Any) -> Any:
return self._kv(k, 2, 3)
def _kv(self, k: Any, x0: Any, x1: Any) -> Any:
if self.data is None:
return None
data = self.data[k]
return data[x0], data[x1]
def item(self, idx: Any) -> Any:
if self.data is None:
return None
return self.data[idx][0], self.data[idx][1]
def add_idx_line_col(self, key: Any, data: Any) -> None:
if self.data is None:
self.data = {}
self.data[key] = data
def __repr__(self) -> str:
return f'LineCol({self.line}, {self.col})'
class CommentedBase:
@property
def ca(self):
# type: () -> Any
if not hasattr(self, Comment.attrib):
setattr(self, Comment.attrib, Comment())
return getattr(self, Comment.attrib)
def yaml_end_comment_extend(self, comment: Any, clear: bool = False) -> None:
if comment is None:
return
if clear or self.ca.end is None:
self.ca.end = []
self.ca.end.extend(comment)
def yaml_key_comment_extend(self, key: Any, comment: Any, clear: bool = False) -> None:
r = self.ca._items.setdefault(key, [None, None, None, None])
if clear or r[1] is None:
if comment[1] is not None:
assert isinstance(comment[1], list)
r[1] = comment[1]
else:
r[1].extend(comment[0])
r[0] = comment[0]
def yaml_value_comment_extend(self, key: Any, comment: Any, clear: bool = False) -> None:
r = self.ca._items.setdefault(key, [None, None, None, None])
if clear or r[3] is None:
if comment[1] is not None:
assert isinstance(comment[1], list)
r[3] = comment[1]
else:
r[3].extend(comment[0])
r[2] = comment[0]
def yaml_set_start_comment(self, comment: Any, indent: Any = 0) -> None:
"""overwrites any preceding comment lines on an object
expects comment to be without `#` and possible have multiple lines
"""
from .error import CommentMark
from .tokens import CommentToken
pre_comments = self._yaml_clear_pre_comment() # type: ignore
if comment[-1] == '\n':
comment = comment[:-1] # strip final newline if there
start_mark = CommentMark(indent)
for com in comment.split('\n'):
c = com.strip()
if len(c) > 0 and c[0] != '#':
com = '# ' + com
pre_comments.append(CommentToken(com + '\n', start_mark))
def yaml_set_comment_before_after_key(
self,
key: Any,
before: Any = None,
indent: Any = 0,
after: Any = None,
after_indent: Any = None,
) -> None:
"""
expects comment (before/after) to be without `#` and possible have multiple lines
"""
from ruamel.yaml.error import CommentMark
from ruamel.yaml.tokens import CommentToken
def comment_token(s: Any, mark: Any) -> Any:
# handle empty lines as having no comment
return CommentToken(('# ' if s else "") + s + '\n', mark)
if after_indent is None:
after_indent = indent + 2
if before and (len(before) > 1) and before[-1] == '\n':
before = before[:-1] # strip final newline if there
if after and after[-1] == '\n':
after = after[:-1] # strip final newline if there
start_mark = CommentMark(indent)
c = self.ca.items.setdefault(key, [None, [], None, None])
if before is not None:
if c[1] is None:
c[1] = []
if before == '\n':
c[1].append(comment_token("", start_mark)) # type: ignore
else:
for com in before.split('\n'):
c[1].append(comment_token(com, start_mark)) # type: ignore
if after:
start_mark = CommentMark(after_indent)
if c[3] is None:
c[3] = []
for com in after.split('\n'):
c[3].append(comment_token(com, start_mark)) # type: ignore
@property
def fa(self) -> Any:
"""format attribute
set_flow_style()/set_block_style()"""
if not hasattr(self, Format.attrib):
setattr(self, Format.attrib, Format())
return getattr(self, Format.attrib)
def yaml_add_eol_comment(
self, comment: Any, key: Optional[Any] = NotNone, column: Optional[Any] = None,
) -> None:
"""
there is a problem as eol comments should start with ' #'
(but at the beginning of the line the space doesn't have to be before
the #. The column index is for the # mark
"""
from .tokens import CommentToken
from .error import CommentMark
if column is None:
try:
column = self._yaml_get_column(key)
except AttributeError:
column = 0
if comment[0] != '#':
comment = '# ' + comment
if column is None:
if comment[0] == '#':
comment = ' ' + comment
column = 0
start_mark = CommentMark(column)
ct = [CommentToken(comment, start_mark), None]
self._yaml_add_eol_comment(ct, key=key)
@property
def lc(self) -> Any:
if not hasattr(self, LineCol.attrib):
setattr(self, LineCol.attrib, LineCol())
return getattr(self, LineCol.attrib)
def _yaml_set_line_col(self, line: Any, col: Any) -> None:
self.lc.line = line
self.lc.col = col
def _yaml_set_kv_line_col(self, key: Any, data: Any) -> None:
self.lc.add_kv_line_col(key, data)
def _yaml_set_idx_line_col(self, key: Any, data: Any) -> None:
self.lc.add_idx_line_col(key, data)
@property
def anchor(self) -> Any:
if not hasattr(self, Anchor.attrib):
setattr(self, Anchor.attrib, Anchor())
return getattr(self, Anchor.attrib)
def yaml_anchor(self) -> Any:
if not hasattr(self, Anchor.attrib):
return None
return self.anchor
def yaml_set_anchor(self, value: Any, always_dump: bool = False) -> None:
self.anchor.value = value
self.anchor.always_dump = always_dump
@property
def tag(self) -> Any:
if not hasattr(self, Tag.attrib):
setattr(self, Tag.attrib, Tag())
return getattr(self, Tag.attrib)
def yaml_set_ctag(self, value: Tag) -> None:
setattr(self, Tag.attrib, value)
def copy_attributes(self, t: Any, memo: Any = None) -> Any:
"""
copies the YAML related attributes, not e.g. .values
returns target
"""
# fmt: off
for a in [Comment.attrib, Format.attrib, LineCol.attrib, Anchor.attrib,
Tag.attrib, merge_attrib]:
if hasattr(self, a):
if memo is not None:
setattr(t, a, copy.deepcopy(getattr(self, a, memo)))
else:
setattr(t, a, getattr(self, a))
return t
# fmt: on
def _yaml_add_eol_comment(self, comment: Any, key: Any) -> None:
raise NotImplementedError
def _yaml_get_pre_comment(self) -> Any:
raise NotImplementedError
def _yaml_get_column(self, key: Any) -> Any:
raise NotImplementedError
class CommentedSeq(MutableSliceableSequence, list, CommentedBase): # type: ignore
__slots__ = (Comment.attrib, '_lst')
def __init__(self, *args: Any, **kw: Any) -> None:
list.__init__(self, *args, **kw)
def __getsingleitem__(self, idx: Any) -> Any:
return list.__getitem__(self, idx)
def __setsingleitem__(self, idx: Any, value: Any) -> None:
# try to preserve the scalarstring type if setting an existing key to a new value
if idx < len(self):
if (
isinstance(value, str)
and not isinstance(value, ScalarString)
and isinstance(self[idx], ScalarString)
):
value = type(self[idx])(value)
list.__setitem__(self, idx, value)
def __delsingleitem__(self, idx: Any = None) -> Any:
list.__delitem__(self, idx)
self.ca.items.pop(idx, None) # might not be there -> default value
for list_index in sorted(self.ca.items):
if list_index < idx:
continue
self.ca.items[list_index - 1] = self.ca.items.pop(list_index)
def __len__(self) -> int:
return list.__len__(self)
def insert(self, idx: Any, val: Any) -> None:
"""the comments after the insertion have to move forward"""
list.insert(self, idx, val)
for list_index in sorted(self.ca.items, reverse=True):
if list_index < idx:
break
self.ca.items[list_index + 1] = self.ca.items.pop(list_index)
def extend(self, val: Any) -> None:
list.extend(self, val)
def __eq__(self, other: Any) -> bool:
return list.__eq__(self, other)
def _yaml_add_comment(self, comment: Any, key: Optional[Any] = NotNone) -> None:
if key is not NotNone:
self.yaml_key_comment_extend(key, comment)
else:
self.ca.comment = comment
def _yaml_add_eol_comment(self, comment: Any, key: Any) -> None:
self._yaml_add_comment(comment, key=key)
def _yaml_get_columnX(self, key: Any) -> Any:
return self.ca.items[key][0].start_mark.column
def _yaml_get_column(self, key: Any) -> Any:
column = None
sel_idx = None
pre, post = key - 1, key + 1
if pre in self.ca.items:
sel_idx = pre
elif post in self.ca.items:
sel_idx = post
else:
# self.ca.items is not ordered
for row_idx, _k1 in enumerate(self):
if row_idx >= key:
break
if row_idx not in self.ca.items:
continue
sel_idx = row_idx
if sel_idx is not None:
column = self._yaml_get_columnX(sel_idx)
return column
def _yaml_get_pre_comment(self) -> Any:
pre_comments: List[Any] = []
if self.ca.comment is None:
self.ca.comment = [None, pre_comments]
else:
pre_comments = self.ca.comment[1]
return pre_comments
def _yaml_clear_pre_comment(self) -> Any:
pre_comments: List[Any] = []
if self.ca.comment is None:
self.ca.comment = [None, pre_comments]
else:
self.ca.comment[1] = pre_comments
return pre_comments
def __deepcopy__(self, memo: Any) -> Any:
res = self.__class__()
memo[id(self)] = res
for k in self:
res.append(copy.deepcopy(k, memo))
self.copy_attributes(res, memo=memo)
return res
def __add__(self, other: Any) -> Any:
return list.__add__(self, other)
def sort(self, key: Any = None, reverse: bool = False) -> None:
if key is None:
tmp_lst = sorted(zip(self, range(len(self))), reverse=reverse)
list.__init__(self, [x[0] for x in tmp_lst])
else:
tmp_lst = sorted(
zip(map(key, list.__iter__(self)), range(len(self))), reverse=reverse,
)
list.__init__(self, [list.__getitem__(self, x[1]) for x in tmp_lst])
itm = self.ca.items
self.ca._items = {}
for idx, x in enumerate(tmp_lst):
old_index = x[1]
if old_index in itm:
self.ca.items[idx] = itm[old_index]
def __repr__(self) -> Any:
return list.__repr__(self)
class CommentedKeySeq(tuple, CommentedBase): # type: ignore
"""This primarily exists to be able to roundtrip keys that are sequences"""
def _yaml_add_comment(self, comment: Any, key: Optional[Any] = NotNone) -> None:
if key is not NotNone:
self.yaml_key_comment_extend(key, comment)
else:
self.ca.comment = comment
def _yaml_add_eol_comment(self, comment: Any, key: Any) -> None:
self._yaml_add_comment(comment, key=key)
def _yaml_get_columnX(self, key: Any) -> Any:
return self.ca.items[key][0].start_mark.column
def _yaml_get_column(self, key: Any) -> Any:
column = None
sel_idx = None
pre, post = key - 1, key + 1
if pre in self.ca.items:
sel_idx = pre
elif post in self.ca.items:
sel_idx = post
else:
# self.ca.items is not ordered
for row_idx, _k1 in enumerate(self):
if row_idx >= key:
break
if row_idx not in self.ca.items:
continue
sel_idx = row_idx
if sel_idx is not None:
column = self._yaml_get_columnX(sel_idx)
return column
def _yaml_get_pre_comment(self) -> Any:
pre_comments: List[Any] = []
if self.ca.comment is None:
self.ca.comment = [None, pre_comments]
else:
pre_comments = self.ca.comment[1]
return pre_comments
def _yaml_clear_pre_comment(self) -> Any:
pre_comments: List[Any] = []
if self.ca.comment is None:
self.ca.comment = [None, pre_comments]
else:
self.ca.comment[1] = pre_comments
return pre_comments
class CommentedMapView(Sized):
__slots__ = ('_mapping',)
def __init__(self, mapping: Any) -> None:
self._mapping = mapping
def __len__(self) -> int:
count = len(self._mapping)
return count
class CommentedMapKeysView(CommentedMapView, Set): # type: ignore
__slots__ = ()
@classmethod
def _from_iterable(self, it: Any) -> Any:
return set(it)
def __contains__(self, key: Any) -> Any:
return key in self._mapping
def __iter__(self) -> Any:
# yield from self._mapping # not in py27, pypy
# for x in self._mapping._keys():
for x in self._mapping:
yield x
class CommentedMapItemsView(CommentedMapView, Set): # type: ignore
__slots__ = ()
@classmethod
def _from_iterable(self, it: Any) -> Any:
return set(it)
def __contains__(self, item: Any) -> Any:
key, value = item
try:
v = self._mapping[key]
except KeyError:
return False
else:
return v == value
def __iter__(self) -> Any:
for key in self._mapping._keys():
yield (key, self._mapping[key])
class CommentedMapValuesView(CommentedMapView):
__slots__ = ()
def __contains__(self, value: Any) -> Any:
for key in self._mapping:
if value == self._mapping[key]:
return True
return False
def __iter__(self) -> Any:
for key in self._mapping._keys():
yield self._mapping[key]
# based on brownie mappings
@classmethod # type: ignore
def raise_immutable(cls: Any, *args: Any, **kwargs: Any) -> None:
raise TypeError(f'{cls.__name__} objects are immutable')
class CommentedKeyMap(CommentedBase, Mapping): # type: ignore
__slots__ = Comment.attrib, '_od'
"""This primarily exists to be able to roundtrip keys that are mappings"""
def __init__(self, *args: Any, **kw: Any) -> None:
if hasattr(self, '_od'):
raise_immutable(self)
try:
self._od = ordereddict(*args, **kw)
except TypeError:
raise
__delitem__ = __setitem__ = clear = pop = popitem = setdefault = update = raise_immutable
# need to implement __getitem__, __iter__ and __len__
def __getitem__(self, index: Any) -> Any:
return self._od[index]
def __iter__(self) -> Iterator[Any]:
for x in self._od.__iter__():
yield x
def __len__(self) -> int:
return len(self._od)
def __hash__(self) -> Any:
return hash(tuple(self.items()))
def __repr__(self) -> Any:
if not hasattr(self, merge_attrib):
return self._od.__repr__()
return 'ordereddict(' + repr(list(self._od.items())) + ')'
@classmethod
def fromkeys(keys: Any, v: Any = None) -> Any:
return CommentedKeyMap(dict.fromkeys(keys, v))
def _yaml_add_comment(self, comment: Any, key: Optional[Any] = NotNone) -> None:
if key is not NotNone:
self.yaml_key_comment_extend(key, comment)
else:
self.ca.comment = comment
def _yaml_add_eol_comment(self, comment: Any, key: Any) -> None:
self._yaml_add_comment(comment, key=key)
def _yaml_get_columnX(self, key: Any) -> Any:
return self.ca.items[key][0].start_mark.column
def _yaml_get_column(self, key: Any) -> Any:
column = None
sel_idx = None
pre, post = key - 1, key + 1
if pre in self.ca.items:
sel_idx = pre
elif post in self.ca.items:
sel_idx = post
else:
# self.ca.items is not ordered
for row_idx, _k1 in enumerate(self):
if row_idx >= key:
break
if row_idx not in self.ca.items:
continue
sel_idx = row_idx
if sel_idx is not None:
column = self._yaml_get_columnX(sel_idx)
return column
def _yaml_get_pre_comment(self) -> Any:
pre_comments: List[Any] = []
if self.ca.comment is None:
self.ca.comment = [None, pre_comments]
else:
self.ca.comment[1] = pre_comments
return pre_comments
class CommentedOrderedMap(CommentedMap):
__slots__ = (Comment.attrib,)
class CommentedSet(MutableSet, CommentedBase): # type: ignore # NOQA
__slots__ = Comment.attrib, 'odict'
def __init__(self, values: Any = None) -> None:
self.odict = ordereddict()
MutableSet.__init__(self)
if values is not None:
self |= values
def _yaml_add_comment(
self, comment: Any, key: Optional[Any] = NotNone, value: Optional[Any] = NotNone,
) -> None:
"""values is set to key to indicate a value attachment of comment"""
if key is not NotNone:
self.yaml_key_comment_extend(key, comment)
return
if value is not NotNone:
self.yaml_value_comment_extend(value, comment)
else:
self.ca.comment = comment
def _yaml_add_eol_comment(self, comment: Any, key: Any) -> None:
"""add on the value line, with value specified by the key"""
self._yaml_add_comment(comment, value=key)
def add(self, value: Any) -> None:
"""Add an element."""
self.odict[value] = None
def discard(self, value: Any) -> None:
"""Remove an element. Do not raise an exception if absent."""
del self.odict[value]
def __contains__(self, x: Any) -> Any:
return x in self.odict
def __iter__(self) -> Any:
for x in self.odict:
yield x
def __len__(self) -> int:
return len(self.odict)
def __repr__(self) -> str:
return f'set({self.odict.keys()!r})'
class TaggedScalar(CommentedBase):
# the value and style attributes are set during roundtrip construction
def __init__(self, value: Any = None, style: Any = None, tag: Any = None) -> None:
self.value = value
self.style = style
if tag is not None:
if isinstance(tag, str):
tag = Tag(suffix=tag)
self.yaml_set_ctag(tag)
def __str__(self) -> Any:
return self.value
def count(self, s: str, start: Optional[int] = None, end: Optional[int] = None) -> Any:
return self.value.count(s, start, end)
def __getitem__(self, pos: int) -> Any:
return self.value[pos]
def __repr__(self) -> str:
return f'TaggedScalar(value={self.value!r}, style={self.style!r}, tag={self.tag!r})'
def dump_comments(d: Any, name: str = "", sep: str = '.', out: Any = sys.stdout) -> None:
"""
recursively dump comments, all but the toplevel preceded by the path
in dotted form x.0.a
"""
if isinstance(d, dict) and hasattr(d, 'ca'):
if name:
out.write(f'{name} {type(d)}\n')
out.write(f'{d.ca!r}\n')
for k in d:
dump_comments(d[k], name=(name + sep + str(k)) if name else k, sep=sep, out=out)
elif isinstance(d, list) and hasattr(d, 'ca'):
if name:
out.write(f'{name} {type(d)}\n')
out.write(f'{d.ca!r}\n')
for idx, k in enumerate(d):
dump_comments(
k, name=(name + sep + str(idx)) if name else str(idx), sep=sep, out=out,
)