def pdef(self, obj, oname=''):
"""Print the call signature for any callable object.
If the object is a class, print the constructor information."""
if not callable(obj):
print('Object is not callable.')
return
header = ''
if inspect.isclass(obj):
header = self.__head('Class constructor information:\n')
elif (not py3compat.PY3) and type(obj) is types.InstanceType:
obj = obj.__call__
output = self._getdef(obj,oname)
if output is None:
self.noinfo('definition header',oname)
else:
print(header,self.format(output), end=' ')
# In Python 3, all classes are new-style, so they all have __init__.
python类InstanceType()的实例源码
def in_idle():
"""
@rtype: C{boolean}
@return: true if this function is run within idle. Tkinter
programs that are run in idle should never call L{Tk.mainloop}; so
this function should be used to gate all calls to C{Tk.mainloop}.
@warning: This function works by checking C{sys.stdin}. If the
user has modified C{sys.stdin}, then it may return incorrect
results.
"""
import sys, types
return (type(sys.stdin) == types.InstanceType and \
sys.stdin.__class__.__name__ == 'PyShell')
##//////////////////////////////////////////////////////
## Test code.
##//////////////////////////////////////////////////////
def in_idle():
"""
@rtype: C{boolean}
@return: true if this function is run within idle. Tkinter
programs that are run in idle should never call L{Tk.mainloop}; so
this function should be used to gate all calls to C{Tk.mainloop}.
@warning: This function works by checking C{sys.stdin}. If the
user has modified C{sys.stdin}, then it may return incorrect
results.
"""
import sys, types
return (type(sys.stdin) == types.InstanceType and \
sys.stdin.__class__.__name__ == 'PyShell')
##//////////////////////////////////////////////////////
## Test code.
##//////////////////////////////////////////////////////
def collect_variables(self, vars, objects, names, treated, skip_unknown = False):
for name in names:
if name not in treated:
try:
obj = objects[name]
try:
if sys.version[0] == '2' and type(obj) is types.InstanceType:
type_name = "instance (" + obj.__class__.__name__ + ")"
else:
type_name = type(obj).__name__
except:
type_name = 'unknown'
except:
if skip_unknown:
continue
obj = SynthesizedValue('<undefined>', len_value=0)
type_name = 'unknown'
vars.append((name, type(obj), safe_repr(obj), safe_hex_repr(obj), type_name, get_object_len(obj)))
treated.add(name)
def error(self, obj, value):
kind = type(value)
if six.PY2 and kind is InstanceType:
msg = 'class %s' % value.__class__.__name__
else:
msg = '%s (i.e. %s)' % ( str( kind )[1:-1], repr( value ) )
if obj is not None:
e = "The '%s' trait of %s instance must be %s, but a value of %s was specified." \
% (self.name, class_of(obj),
self.info(), msg)
else:
e = "The '%s' trait must be %s, but a value of %r was specified." \
% (self.name, self.info(), msg)
raise TraitError(e)
def in_idle():
"""
@rtype: C{boolean}
@return: true if this function is run within idle. Tkinter
programs that are run in idle should never call L{Tk.mainloop}; so
this function should be used to gate all calls to C{Tk.mainloop}.
@warning: This function works by checking C{sys.stdin}. If the
user has modified C{sys.stdin}, then it may return incorrect
results.
"""
import sys, types
return (type(sys.stdin) == types.InstanceType and \
sys.stdin.__class__.__name__ == 'PyShell')
##//////////////////////////////////////////////////////
## Test code.
##//////////////////////////////////////////////////////
def __init__(self,data):
self.change = 0
self.maxtype = 0
self.data = data
if type(data) is types.InstanceType and ".dump" in str(data.__class__):
self.which = 0
elif type(data) is types.InstanceType and ".data" in str(data.__class__):
self.which = 0
elif type(data) is types.InstanceType and ".mdump" in str(data.__class__):
self.which = 1
elif type(data) is types.InstanceType and ".cdata" in str(data.__class__):
self.which = 1
else:
raise StandardError,"unrecognized object passed to ensight"
# --------------------------------------------------------------------
def dis(x=None):
"""Disassemble classes, methods, functions, or code.
With no argument, disassemble the last traceback.
"""
if x is None:
distb()
return
if isinstance(x, types.InstanceType):
x = x.__class__
if hasattr(x, 'im_func'):
x = x.im_func
if hasattr(x, 'func_code'):
x = x.func_code
if hasattr(x, '__dict__'):
items = x.__dict__.items()
items.sort()
for name, x1 in items:
if isinstance(x1, _have_code):
print "Disassembly of %s:" % name
try:
dis(x1)
except TypeError, msg:
print "Sorry:", msg
print
elif hasattr(x, 'co_code'):
disassemble(x)
elif isinstance(x, str):
disassemble_string(x)
else:
raise TypeError, \
"don't know how to disassemble %s objects" % \
type(x).__name__
def describe(thing):
"""Produce a short description of the given thing."""
if inspect.ismodule(thing):
if thing.__name__ in sys.builtin_module_names:
return 'built-in module ' + thing.__name__
if hasattr(thing, '__path__'):
return 'package ' + thing.__name__
else:
return 'module ' + thing.__name__
if inspect.isbuiltin(thing):
return 'built-in function ' + thing.__name__
if inspect.isgetsetdescriptor(thing):
return 'getset descriptor %s.%s.%s' % (
thing.__objclass__.__module__, thing.__objclass__.__name__,
thing.__name__)
if inspect.ismemberdescriptor(thing):
return 'member descriptor %s.%s.%s' % (
thing.__objclass__.__module__, thing.__objclass__.__name__,
thing.__name__)
if inspect.isclass(thing):
return 'class ' + thing.__name__
if inspect.isfunction(thing):
return 'function ' + thing.__name__
if inspect.ismethod(thing):
return 'method ' + thing.__name__
if type(thing) is types.InstanceType:
return 'instance of ' + thing.__class__.__name__
return type(thing).__name__
def typeStr(obj):
"""Create a more useful type string by making <instance> types report their class."""
typ = type(obj)
if typ == getattr(types, 'InstanceType', None):
return "<instance of %s>" % obj.__class__.__name__
else:
return str(typ)
def typeStr(obj):
"""Create a more useful type string by making <instance> types report their class."""
typ = type(obj)
if typ == getattr(types, 'InstanceType', None):
return "<instance of %s>" % obj.__class__.__name__
else:
return str(typ)
def represent_data(self, data):
if self.ignore_aliases(data):
self.alias_key = None
else:
self.alias_key = id(data)
if self.alias_key is not None:
if self.alias_key in self.represented_objects:
node = self.represented_objects[self.alias_key]
#if node is None:
# raise RepresenterError("recursive objects are not allowed: %r" % data)
return node
#self.represented_objects[alias_key] = None
self.object_keeper.append(data)
data_types = type(data).__mro__
if type(data) is types.InstanceType:
data_types = self.get_classobj_bases(data.__class__)+list(data_types)
if data_types[0] in self.yaml_representers:
node = self.yaml_representers[data_types[0]](self, data)
else:
for data_type in data_types:
if data_type in self.yaml_multi_representers:
node = self.yaml_multi_representers[data_type](self, data)
break
else:
if None in self.yaml_multi_representers:
node = self.yaml_multi_representers[None](self, data)
elif None in self.yaml_representers:
node = self.yaml_representers[None](self, data)
else:
node = ScalarNode(None, unicode(data))
#if alias_key is not None:
# self.represented_objects[alias_key] = node
return node
def represent_data(self, data):
if self.ignore_aliases(data):
self.alias_key = None
else:
self.alias_key = id(data)
if self.alias_key is not None:
if self.alias_key in self.represented_objects:
node = self.represented_objects[self.alias_key]
#if node is None:
# raise RepresenterError("recursive objects are not allowed: %r" % data)
return node
#self.represented_objects[alias_key] = None
self.object_keeper.append(data)
data_types = type(data).__mro__
if type(data) is types.InstanceType:
data_types = self.get_classobj_bases(data.__class__)+list(data_types)
if data_types[0] in self.yaml_representers:
node = self.yaml_representers[data_types[0]](self, data)
else:
for data_type in data_types:
if data_type in self.yaml_multi_representers:
node = self.yaml_multi_representers[data_type](self, data)
break
else:
if None in self.yaml_multi_representers:
node = self.yaml_multi_representers[None](self, data)
elif None in self.yaml_representers:
node = self.yaml_representers[None](self, data)
else:
node = ScalarNode(None, unicode(data))
#if alias_key is not None:
# self.represented_objects[alias_key] = node
return node
def isinst(inst,clazz):
if type(inst) != types.InstanceType or type(clazz)!=types.ClassType:
return isinstance(inst,clazz)
cl = inst.__class__
cl2 = getcurrent(cl)
clazz = getcurrent(clazz)
if issubclass(cl2,clazz):
if cl == cl2:
return WAS
else:
inst.__class__ = cl2
return IS
else:
return ISNT
def isOfType(start, goal):
return ((type(start) is goal) or
(isinstance(start, types.InstanceType) and
start.__class__ is goal))
def fill_property(self, property, value):
"""Set a value for a particular property.
'property' should be one of the keys in my propertyLabels.
"""
row, name = self.propertyLabels.get(property)
if type(value) is not types.InstanceType:
widget = gtk.Label(str(value))
widget.set_alignment(0, 0)
else:
widget = value.newAttributeWidget(self)
widget.set_name("PropertyValue")
self.subtable['properties'].attach(widget, 1, 2, row, row+1)
def view_get_item(self, perspective, key):
if type(key) is types.InstanceType:
key = key.object
item = self.dct[key]
identifier = "%s[%s]" % (self.identifier, repr(key))
# GLOBAL: using global explorerPool
item = explorerPool.getExplorer(item, identifier)
return item
def dis(x=None):
"""Disassemble classes, methods, functions, or code.
With no argument, disassemble the last traceback.
"""
if x is None:
distb()
return
if isinstance(x, types.InstanceType):
x = x.__class__
if hasattr(x, 'im_func'):
x = x.im_func
if hasattr(x, 'func_code'):
x = x.func_code
if hasattr(x, '__dict__'):
items = x.__dict__.items()
items.sort()
for name, x1 in items:
if isinstance(x1, _have_code):
print "Disassembly of %s:" % name
try:
dis(x1)
except TypeError, msg:
print "Sorry:", msg
print
elif hasattr(x, 'co_code'):
disassemble(x)
elif isinstance(x, str):
disassemble_string(x)
else:
raise TypeError, \
"don't know how to disassemble %s objects" % \
type(x).__name__
def checkrec(self, key, value):
# override this in a subclass if the key type is different
if sys.version_info[0] >= 3 :
if isinstance(key, bytes) :
key = key.decode("iso8859-1") # 8 bits
x = key[1]
if key[0] == 'S':
self.assertEqual(type(value), str)
self.assertEqual(value, 10 * x)
elif key[0] == 'I':
self.assertEqual(type(value), int)
self.assertEqual(value, ord(x))
elif key[0] == 'L':
self.assertEqual(type(value), list)
self.assertEqual(value, [x] * 10)
elif key[0] == 'O':
if sys.version_info[0] < 3 :
from types import InstanceType
self.assertEqual(type(value), InstanceType)
else :
self.assertEqual(type(value), DataClass)
self.assertEqual(value.S, 10 * x)
self.assertEqual(value.I, ord(x))
self.assertEqual(value.L, [x] * 10)
else:
self.assertTrue(0, 'Unknown key type, fix the test')
#----------------------------------------------------------------------
def describe(thing):
"""Produce a short description of the given thing."""
if inspect.ismodule(thing):
if thing.__name__ in sys.builtin_module_names:
return 'built-in module ' + thing.__name__
if hasattr(thing, '__path__'):
return 'package ' + thing.__name__
else:
return 'module ' + thing.__name__
if inspect.isbuiltin(thing):
return 'built-in function ' + thing.__name__
if inspect.isgetsetdescriptor(thing):
return 'getset descriptor %s.%s.%s' % (
thing.__objclass__.__module__, thing.__objclass__.__name__,
thing.__name__)
if inspect.ismemberdescriptor(thing):
return 'member descriptor %s.%s.%s' % (
thing.__objclass__.__module__, thing.__objclass__.__name__,
thing.__name__)
if inspect.isclass(thing):
return 'class ' + thing.__name__
if inspect.isfunction(thing):
return 'function ' + thing.__name__
if inspect.ismethod(thing):
return 'method ' + thing.__name__
if type(thing) is types.InstanceType:
return 'instance of ' + thing.__class__.__name__
return type(thing).__name__
