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Issue #23870: The pprint module now supports all standard collections

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except named tuples.
This commit is contained in:
Serhiy Storchaka 2015-05-12 13:35:48 +03:00
parent 0c59ff6430
commit bedbf96e84
2 changed files with 228 additions and 0 deletions
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80
Lib/pprint.py
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@ -404,6 +404,86 @@ def format(self, object, context, maxlevels, level):
"""
return _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
# Return triple (repr_string, isreadable, isrecursive).