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author | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
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committer | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
commit | 06e5c21a835c0e923506c4ff27929f34e00761c2 (patch) | |
tree | 75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/tools/python3/src/Lib/pprint.py | |
parent | 03f024c4412e3aa613bb543cf1660176320ba8f4 (diff) | |
download | ydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz |
fix ya.make
Diffstat (limited to 'contrib/tools/python3/src/Lib/pprint.py')
-rw-r--r-- | contrib/tools/python3/src/Lib/pprint.py | 670 |
1 files changed, 0 insertions, 670 deletions
diff --git a/contrib/tools/python3/src/Lib/pprint.py b/contrib/tools/python3/src/Lib/pprint.py deleted file mode 100644 index d91421f0a6..0000000000 --- a/contrib/tools/python3/src/Lib/pprint.py +++ /dev/null @@ -1,670 +0,0 @@ -# Author: Fred L. Drake, Jr. -# fdrake@acm.org -# -# This is a simple little module I wrote to make life easier. I didn't -# see anything quite like it in the library, though I may have overlooked -# something. I wrote this when I was trying to read some heavily nested -# tuples with fairly non-descriptive content. This is modeled very much -# after Lisp/Scheme - style pretty-printing of lists. If you find it -# useful, thank small children who sleep at night. - -"""Support to pretty-print lists, tuples, & dictionaries recursively. - -Very simple, but useful, especially in debugging data structures. - -Classes -------- - -PrettyPrinter() - Handle pretty-printing operations onto a stream using a configured - set of formatting parameters. - -Functions ---------- - -pformat() - Format a Python object into a pretty-printed representation. - -pprint() - Pretty-print a Python object to a stream [default is sys.stdout]. - -saferepr() - Generate a 'standard' repr()-like value, but protect against recursive - data structures. - -""" - -import collections as _collections -import dataclasses as _dataclasses -import re -import sys as _sys -import types as _types -from io import StringIO as _StringIO - -__all__ = ["pprint","pformat","isreadable","isrecursive","saferepr", - "PrettyPrinter", "pp"] - - -def pprint(object, stream=None, indent=1, width=80, depth=None, *, - compact=False, sort_dicts=True, underscore_numbers=False): - """Pretty-print a Python object to a stream [default is sys.stdout].""" - printer = PrettyPrinter( - stream=stream, indent=indent, width=width, depth=depth, - compact=compact, sort_dicts=sort_dicts, - underscore_numbers=underscore_numbers) - printer.pprint(object) - -def pformat(object, indent=1, width=80, depth=None, *, - compact=False, sort_dicts=True, underscore_numbers=False): - """Format a Python object into a pretty-printed representation.""" - return PrettyPrinter(indent=indent, width=width, depth=depth, - compact=compact, sort_dicts=sort_dicts, - underscore_numbers=underscore_numbers).pformat(object) - -def pp(object, *args, sort_dicts=False, **kwargs): - """Pretty-print a Python object""" - pprint(object, *args, sort_dicts=sort_dicts, **kwargs) - -def saferepr(object): - """Version of repr() which can handle recursive data structures.""" - return PrettyPrinter()._safe_repr(object, {}, None, 0)[0] - -def isreadable(object): - """Determine if saferepr(object) is readable by eval().""" - return PrettyPrinter()._safe_repr(object, {}, None, 0)[1] - -def isrecursive(object): - """Determine if object requires a recursive representation.""" - return PrettyPrinter()._safe_repr(object, {}, None, 0)[2] - -class _safe_key: - """Helper function for key functions when sorting unorderable objects. - - The wrapped-object will fallback to a Py2.x style comparison for - unorderable types (sorting first comparing the type name and then by - the obj ids). Does not work recursively, so dict.items() must have - _safe_key applied to both the key and the value. - - """ - - __slots__ = ['obj'] - - def __init__(self, obj): - self.obj = obj - - def __lt__(self, other): - try: - return self.obj < other.obj - except TypeError: - return ((str(type(self.obj)), id(self.obj)) < \ - (str(type(other.obj)), id(other.obj))) - -def _safe_tuple(t): - "Helper function for comparing 2-tuples" - return _safe_key(t[0]), _safe_key(t[1]) - -class PrettyPrinter: - def __init__(self, indent=1, width=80, depth=None, stream=None, *, - compact=False, sort_dicts=True, underscore_numbers=False): - """Handle pretty printing operations onto a stream using a set of - configured parameters. - - indent - Number of spaces to indent for each level of nesting. - - width - Attempted maximum number of columns in the output. - - depth - The maximum depth to print out nested structures. - - stream - The desired output stream. If omitted (or false), the standard - output stream available at construction will be used. - - compact - If true, several items will be combined in one line. - - sort_dicts - If true, dict keys are sorted. - - """ - indent = int(indent) - width = int(width) - if indent < 0: - raise ValueError('indent must be >= 0') - if depth is not None and depth <= 0: - raise ValueError('depth must be > 0') - if not width: - raise ValueError('width must be != 0') - self._depth = depth - self._indent_per_level = indent - self._width = width - if stream is not None: - self._stream = stream - else: - self._stream = _sys.stdout - self._compact = bool(compact) - self._sort_dicts = sort_dicts - self._underscore_numbers = underscore_numbers - - def pprint(self, object): - self._format(object, self._stream, 0, 0, {}, 0) - self._stream.write("\n") - - def pformat(self, object): - sio = _StringIO() - self._format(object, sio, 0, 0, {}, 0) - return sio.getvalue() - - def isrecursive(self, object): - return self.format(object, {}, 0, 0)[2] - - def isreadable(self, object): - s, readable, recursive = self.format(object, {}, 0, 0) - return readable and not recursive - - def _format(self, object, stream, indent, allowance, context, level): - objid = id(object) - if objid in context: - stream.write(_recursion(object)) - self._recursive = True - self._readable = False - return - rep = self._repr(object, context, level) - max_width = self._width - indent - allowance - if len(rep) > max_width: - p = self._dispatch.get(type(object).__repr__, None) - if p is not None: - context[objid] = 1 - p(self, object, stream, indent, allowance, context, level + 1) - del context[objid] - return - elif (_dataclasses.is_dataclass(object) and - not isinstance(object, type) and - object.__dataclass_params__.repr and - # Check dataclass has generated repr method. - hasattr(object.__repr__, "__wrapped__") and - "__create_fn__" in object.__repr__.__wrapped__.__qualname__): - context[objid] = 1 - self._pprint_dataclass(object, stream, indent, allowance, context, level + 1) - del context[objid] - return - stream.write(rep) - - def _pprint_dataclass(self, object, stream, indent, allowance, context, level): - cls_name = object.__class__.__name__ - indent += len(cls_name) + 1 - items = [(f.name, getattr(object, f.name)) for f in _dataclasses.fields(object) if f.repr] - stream.write(cls_name + '(') - self._format_namespace_items(items, stream, indent, allowance, context, level) - stream.write(')') - - _dispatch = {} - - def _pprint_dict(self, object, stream, indent, allowance, context, level): - write = stream.write - write('{') - if self._indent_per_level > 1: - write((self._indent_per_level - 1) * ' ') - length = len(object) - if length: - if self._sort_dicts: - items = sorted(object.items(), key=_safe_tuple) - else: - items = object.items() - self._format_dict_items(items, stream, indent, allowance + 1, - context, level) - write('}') - - _dispatch[dict.__repr__] = _pprint_dict - - def _pprint_ordered_dict(self, object, stream, indent, allowance, context, level): - if not len(object): - stream.write(repr(object)) - return - cls = object.__class__ - stream.write(cls.__name__ + '(') - self._format(list(object.items()), stream, - indent + len(cls.__name__) + 1, allowance + 1, - context, level) - stream.write(')') - - _dispatch[_collections.OrderedDict.__repr__] = _pprint_ordered_dict - - def _pprint_list(self, object, stream, indent, allowance, context, level): - stream.write('[') - self._format_items(object, stream, indent, allowance + 1, - context, level) - stream.write(']') - - _dispatch[list.__repr__] = _pprint_list - - def _pprint_tuple(self, object, stream, indent, allowance, context, level): - stream.write('(') - endchar = ',)' if len(object) == 1 else ')' - self._format_items(object, stream, indent, allowance + len(endchar), - context, level) - stream.write(endchar) - - _dispatch[tuple.__repr__] = _pprint_tuple - - def _pprint_set(self, object, stream, indent, allowance, context, level): - if not len(object): - stream.write(repr(object)) - return - typ = object.__class__ - if typ is set: - stream.write('{') - endchar = '}' - else: - stream.write(typ.__name__ + '({') - endchar = '})' - indent += len(typ.__name__) + 1 - object = sorted(object, key=_safe_key) - self._format_items(object, stream, indent, allowance + len(endchar), - context, level) - stream.write(endchar) - - _dispatch[set.__repr__] = _pprint_set - _dispatch[frozenset.__repr__] = _pprint_set - - def _pprint_str(self, object, stream, indent, allowance, context, level): - write = stream.write - if not len(object): - write(repr(object)) - return - chunks = [] - lines = object.splitlines(True) - if level == 1: - indent += 1 - allowance += 1 - max_width1 = max_width = self._width - indent - for i, line in enumerate(lines): - rep = repr(line) - if i == len(lines) - 1: - max_width1 -= allowance - if len(rep) <= max_width1: - chunks.append(rep) - else: - # A list of alternating (non-space, space) strings - parts = re.findall(r'\S*\s*', line) - assert parts - assert not parts[-1] - parts.pop() # drop empty last part - max_width2 = max_width - current = '' - for j, part in enumerate(parts): - candidate = current + part - if j == len(parts) - 1 and i == len(lines) - 1: - max_width2 -= allowance - if len(repr(candidate)) > max_width2: - if current: - chunks.append(repr(current)) - current = part - else: - current = candidate - if current: - chunks.append(repr(current)) - if len(chunks) == 1: - write(rep) - return - if level == 1: - write('(') - for i, rep in enumerate(chunks): - if i > 0: - write('\n' + ' '*indent) - write(rep) - if level == 1: - write(')') - - _dispatch[str.__repr__] = _pprint_str - - def _pprint_bytes(self, object, stream, indent, allowance, context, level): - write = stream.write - if len(object) <= 4: - write(repr(object)) - return - parens = level == 1 - if parens: - indent += 1 - allowance += 1 - write('(') - delim = '' - for rep in _wrap_bytes_repr(object, self._width - indent, allowance): - write(delim) - write(rep) - if not delim: - delim = '\n' + ' '*indent - if parens: - write(')') - - _dispatch[bytes.__repr__] = _pprint_bytes - - def _pprint_bytearray(self, object, stream, indent, allowance, context, level): - write = stream.write - write('bytearray(') - self._pprint_bytes(bytes(object), stream, indent + 10, - allowance + 1, context, level + 1) - write(')') - - _dispatch[bytearray.__repr__] = _pprint_bytearray - - def _pprint_mappingproxy(self, object, stream, indent, allowance, context, level): - stream.write('mappingproxy(') - self._format(object.copy(), stream, indent + 13, allowance + 1, - context, level) - stream.write(')') - - _dispatch[_types.MappingProxyType.__repr__] = _pprint_mappingproxy - - def _pprint_simplenamespace(self, object, stream, indent, allowance, context, level): - if type(object) is _types.SimpleNamespace: - # The SimpleNamespace repr is "namespace" instead of the class - # name, so we do the same here. For subclasses; use the class name. - cls_name = 'namespace' - else: - cls_name = object.__class__.__name__ - indent += len(cls_name) + 1 - items = object.__dict__.items() - stream.write(cls_name + '(') - self._format_namespace_items(items, stream, indent, allowance, context, level) - stream.write(')') - - _dispatch[_types.SimpleNamespace.__repr__] = _pprint_simplenamespace - - def _format_dict_items(self, items, stream, indent, allowance, context, - level): - write = stream.write - indent += self._indent_per_level - delimnl = ',\n' + ' ' * indent - last_index = len(items) - 1 - for i, (key, ent) in enumerate(items): - last = i == last_index - rep = self._repr(key, context, level) - write(rep) - write(': ') - self._format(ent, stream, indent + len(rep) + 2, - allowance if last else 1, - context, level) - if not last: - write(delimnl) - - def _format_namespace_items(self, items, stream, indent, allowance, context, level): - write = stream.write - delimnl = ',\n' + ' ' * indent - last_index = len(items) - 1 - for i, (key, ent) in enumerate(items): - last = i == last_index - write(key) - write('=') - if id(ent) in context: - # Special-case representation of recursion to match standard - # recursive dataclass repr. - write("...") - else: - self._format(ent, stream, indent + len(key) + 1, - allowance if last else 1, - context, level) - if not last: - write(delimnl) - - def _format_items(self, items, stream, indent, allowance, context, level): - write = stream.write - indent += self._indent_per_level - if self._indent_per_level > 1: - write((self._indent_per_level - 1) * ' ') - delimnl = ',\n' + ' ' * indent - delim = '' - width = max_width = self._width - indent + 1 - it = iter(items) - try: - next_ent = next(it) - except StopIteration: - return - last = False - while not last: - ent = next_ent - try: - next_ent = next(it) - except StopIteration: - last = True - max_width -= allowance - width -= allowance - if self._compact: - rep = self._repr(ent, context, level) - w = len(rep) + 2 - if width < w: - width = max_width - if delim: - delim = delimnl - if width >= w: - width -= w - write(delim) - delim = ', ' - write(rep) - continue - write(delim) - delim = delimnl - self._format(ent, stream, indent, - allowance if last else 1, - context, level) - - def _repr(self, object, context, level): - repr, readable, recursive = self.format(object, context.copy(), - self._depth, level) - if not readable: - self._readable = False - if recursive: - self._recursive = True - return repr - - def format(self, object, context, maxlevels, level): - """Format object for a specific context, returning a string - and flags indicating whether the representation is 'readable' - and whether the object represents a recursive construct. - """ - return self._safe_repr(object, context, maxlevels, level) - - def _pprint_default_dict(self, object, stream, indent, allowance, context, level): - if not len(object): - stream.write(repr(object)) - return - rdf = self._repr(object.default_factory, context, level) - cls = object.__class__ - indent += len(cls.__name__) + 1 - stream.write('%s(%s,\n%s' % (cls.__name__, rdf, ' ' * indent)) - self._pprint_dict(object, stream, indent, allowance + 1, context, level) - stream.write(')') - - _dispatch[_collections.defaultdict.__repr__] = _pprint_default_dict - - def _pprint_counter(self, object, stream, indent, allowance, context, level): - if not len(object): - stream.write(repr(object)) - return - cls = object.__class__ - stream.write(cls.__name__ + '({') - if self._indent_per_level > 1: - stream.write((self._indent_per_level - 1) * ' ') - items = object.most_common() - self._format_dict_items(items, stream, - indent + len(cls.__name__) + 1, allowance + 2, - context, level) - stream.write('})') - - _dispatch[_collections.Counter.__repr__] = _pprint_counter - - def _pprint_chain_map(self, object, stream, indent, allowance, context, level): - if not len(object.maps): - stream.write(repr(object)) - return - cls = object.__class__ - stream.write(cls.__name__ + '(') - indent += len(cls.__name__) + 1 - for i, m in enumerate(object.maps): - if i == len(object.maps) - 1: - self._format(m, stream, indent, allowance + 1, context, level) - stream.write(')') - else: - self._format(m, stream, indent, 1, context, level) - stream.write(',\n' + ' ' * indent) - - _dispatch[_collections.ChainMap.__repr__] = _pprint_chain_map - - def _pprint_deque(self, object, stream, indent, allowance, context, level): - if not len(object): - stream.write(repr(object)) - return - cls = object.__class__ - stream.write(cls.__name__ + '(') - indent += len(cls.__name__) + 1 - stream.write('[') - if object.maxlen is None: - self._format_items(object, stream, indent, allowance + 2, - context, level) - stream.write('])') - else: - self._format_items(object, stream, indent, 2, - context, level) - rml = self._repr(object.maxlen, context, level) - stream.write('],\n%smaxlen=%s)' % (' ' * indent, rml)) - - _dispatch[_collections.deque.__repr__] = _pprint_deque - - def _pprint_user_dict(self, object, stream, indent, allowance, context, level): - self._format(object.data, stream, indent, allowance, context, level - 1) - - _dispatch[_collections.UserDict.__repr__] = _pprint_user_dict - - def _pprint_user_list(self, object, stream, indent, allowance, context, level): - self._format(object.data, stream, indent, allowance, context, level - 1) - - _dispatch[_collections.UserList.__repr__] = _pprint_user_list - - def _pprint_user_string(self, object, stream, indent, allowance, context, level): - self._format(object.data, stream, indent, allowance, context, level - 1) - - _dispatch[_collections.UserString.__repr__] = _pprint_user_string - - def _safe_repr(self, object, context, maxlevels, level): - # Return triple (repr_string, isreadable, isrecursive). - typ = type(object) - if typ in _builtin_scalars: - return repr(object), True, False - - r = getattr(typ, "__repr__", None) - - if issubclass(typ, int) and r is int.__repr__: - if self._underscore_numbers: - return f"{object:_d}", True, False - else: - return repr(object), True, False - - if issubclass(typ, dict) and r is dict.__repr__: - if not object: - return "{}", True, False - objid = id(object) - if maxlevels and level >= maxlevels: - return "{...}", False, objid in context - if objid in context: - return _recursion(object), False, True - context[objid] = 1 - readable = True - recursive = False - components = [] - append = components.append - level += 1 - if self._sort_dicts: - items = sorted(object.items(), key=_safe_tuple) - else: - items = object.items() - for k, v in items: - krepr, kreadable, krecur = self.format( - k, context, maxlevels, level) - vrepr, vreadable, vrecur = self.format( - v, context, maxlevels, level) - append("%s: %s" % (krepr, vrepr)) - readable = readable and kreadable and vreadable - if krecur or vrecur: - recursive = True - del context[objid] - return "{%s}" % ", ".join(components), readable, recursive - - if (issubclass(typ, list) and r is list.__repr__) or \ - (issubclass(typ, tuple) and r is tuple.__repr__): - if issubclass(typ, list): - if not object: - return "[]", True, False - format = "[%s]" - elif len(object) == 1: - format = "(%s,)" - else: - if not object: - return "()", True, False - format = "(%s)" - objid = id(object) - if maxlevels and level >= maxlevels: - return format % "...", False, objid in context - if objid in context: - return _recursion(object), False, True - context[objid] = 1 - readable = True - recursive = False - components = [] - append = components.append - level += 1 - for o in object: - orepr, oreadable, orecur = self.format( - o, context, maxlevels, level) - append(orepr) - if not oreadable: - readable = False - if orecur: - recursive = True - del context[objid] - return format % ", ".join(components), readable, recursive - - rep = repr(object) - return rep, (rep and not rep.startswith('<')), False - -_builtin_scalars = frozenset({str, bytes, bytearray, float, complex, - bool, type(None)}) - -def _recursion(object): - return ("<Recursion on %s with id=%s>" - % (type(object).__name__, id(object))) - - -def _perfcheck(object=None): - import time - if object is None: - object = [("string", (1, 2), [3, 4], {5: 6, 7: 8})] * 100000 - p = PrettyPrinter() - t1 = time.perf_counter() - p._safe_repr(object, {}, None, 0, True) - t2 = time.perf_counter() - p.pformat(object) - t3 = time.perf_counter() - print("_safe_repr:", t2 - t1) - print("pformat:", t3 - t2) - -def _wrap_bytes_repr(object, width, allowance): - current = b'' - last = len(object) // 4 * 4 - for i in range(0, len(object), 4): - part = object[i: i+4] - candidate = current + part - if i == last: - width -= allowance - if len(repr(candidate)) > width: - if current: - yield repr(current) - current = part - else: - current = candidate - if current: - yield repr(current) - -if __name__ == "__main__": - _perfcheck() |