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Remove builtin "caching" in pprint

This commit is contained in:
Antoine Pitrou 2013-10-03 21:29:36 +02:00
parent bf14dccc4d
commit 7d36e2fc5c
1 changed files with 22 additions and 28 deletions
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50
Lib/pprint.py
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@ -42,12 +42,6 @@ from io import StringIO as _StringIO
__all__ = ["pprint","pformat","isreadable","isrecursive","saferepr",
"PrettyPrinter"]
# cache these for faster access:
_commajoin = ", ".join
_id = id
_len = len
_type = type
def pprint(object, stream=None, indent=1, width=80, depth=None, *,
compact=False):
@ -96,8 +90,8 @@ class _safe_key:
rv = NotImplemented
if rv is NotImplemented:
rv = (str(_type(self.obj)), _id(self.obj)) < \
(str(_type(other.obj)), _id(other.obj))
rv = (str(type(self.obj)), id(self.obj)) < \
(str(type(other.obj)), id(other.obj))
return rv
def _safe_tuple(t):
@ -159,16 +153,16 @@ class PrettyPrinter:
def _format(self, object, stream, indent, allowance, context, level):
level = level + 1
objid = _id(object)
objid = id(object)
if objid in context:
stream.write(_recursion(object))
self._recursive = True
self._readable = False
return
rep = self._repr(object, context, level - 1)
typ = _type(object)
typ = type(object)
max_width = self._width - 1 - indent - allowance
sepLines = _len(rep) > max_width
sepLines = len(rep) > max_width
write = stream.write
if sepLines:
@ -177,7 +171,7 @@ class PrettyPrinter:
write('{')
if self._indent_per_level > 1:
write((self._indent_per_level - 1) * ' ')
length = _len(object)
length = len(object)
if length:
context[objid] = 1
indent = indent + self._indent_per_level
@ -189,13 +183,13 @@ class PrettyPrinter:
rep = self._repr(key, context, level)
write(rep)
write(': ')
self._format(ent, stream, indent + _len(rep) + 2,
self._format(ent, stream, indent + len(rep) + 2,
allowance + 1, context, level)
if length > 1:
for key, ent in items[1:]:
rep = self._repr(key, context, level)
write(',\n%s%s: ' % (' '*indent, rep))
self._format(ent, stream, indent + _len(rep) + 2,
self._format(ent, stream, indent + len(rep) + 2,
allowance + 1, context, level)
indent = indent - self._indent_per_level
del context[objid]
@ -207,7 +201,7 @@ class PrettyPrinter:
(issubclass(typ, set) and r is set.__repr__) or
(issubclass(typ, frozenset) and r is frozenset.__repr__)
):
length = _len(object)
length = len(object)
if issubclass(typ, list):
write('[')
endchar = ']'
@ -225,7 +219,7 @@ class PrettyPrinter:
write(typ.__name__)
write('({')
endchar = '})'
indent += _len(typ.__name__) + 1
indent += len(typ.__name__) + 1
object = sorted(object, key=_safe_key)
if self._indent_per_level > 1:
write((self._indent_per_level - 1) * ' ')
@ -240,7 +234,7 @@ class PrettyPrinter:
write(endchar)
return
if issubclass(typ, str) and _len(object) > 0 and r is str.__repr__:
if issubclass(typ, str) and len(object) > 0 and r is str.__repr__:
def _str_parts(s):
"""
Return a list of string literals comprising the repr()
@ -249,16 +243,16 @@ class PrettyPrinter:
lines = s.splitlines(True)
for i, line in enumerate(lines):
rep = repr(line)
if _len(rep) <= max_width:
if len(rep) <= max_width:
yield rep
else:
# A list of alternating (non-space, space) strings
parts = re.split(r'(\s+)', line) + ['']
current = ''
for i in range(0, _len(parts), 2):
for i in range(0, len(parts), 2):
part = parts[i] + parts[i+1]
candidate = current + part
if _len(repr(candidate)) > max_width:
if len(repr(candidate)) > max_width:
if current:
yield repr(current)
current = part
@ -281,7 +275,7 @@ class PrettyPrinter:
for ent in items:
if self._compact:
rep = self._repr(ent, context, level)
w = _len(rep) + 2
w = len(rep) + 2
if width < w:
width = max_width
if delim:
@ -316,7 +310,7 @@ class PrettyPrinter:
# Return triple (repr_string, isreadable, isrecursive).
def _safe_repr(object, context, maxlevels, level):
typ = _type(object)
typ = type(object)
if typ is str:
if 'locale' not in _sys.modules:
return repr(object), True, False
@ -340,7 +334,7 @@ def _safe_repr(object, context, maxlevels, level):
if issubclass(typ, dict) and r is dict.__repr__:
if not object:
return "{}", True, False
objid = _id(object)
objid = id(object)
if maxlevels and level >= maxlevels:
return "{...}", False, objid in context
if objid in context:
@ -361,7 +355,7 @@ def _safe_repr(object, context, maxlevels, level):
if krecur or vrecur:
recursive = True
del context[objid]
return "{%s}" % _commajoin(components), readable, recursive
return "{%s}" % ", ".join(components), readable, recursive
if (issubclass(typ, list) and r is list.__repr__) or \
(issubclass(typ, tuple) and r is tuple.__repr__):
@ -369,13 +363,13 @@ def _safe_repr(object, context, maxlevels, level):
if not object:
return "[]", True, False
format = "[%s]"
elif _len(object) == 1:
elif len(object) == 1:
format = "(%s,)"
else:
if not object:
return "()", True, False
format = "(%s)"
objid = _id(object)
objid = id(object)
if maxlevels and level >= maxlevels:
return format % "...", False, objid in context
if objid in context:
@ -394,7 +388,7 @@ def _safe_repr(object, context, maxlevels, level):
if orecur:
recursive = True
del context[objid]
return format % _commajoin(components), readable, recursive
return format % ", ".join(components), readable, recursive
rep = repr(object)
return rep, (rep and not rep.startswith('<')), False
@ -402,7 +396,7 @@ def _safe_repr(object, context, maxlevels, level):
def _recursion(object):
return ("<Recursion on %s with id=%s>"
% (_type(object).__name__, _id(object)))
% (type(object).__name__, id(object)))
def _perfcheck(object=None):