def magic_print_traits(self, arg):
""" Print the traits of an object.
"""
try:
from IPython.external.pretty import pretty
except ImportError:
import pprint
pretty = pprint.pformat
args = parse_argstring(magic_print_traits, arg)
obj = get_variable(self, args.variable)
if not hasattr(obj, 'trait_names'):
raise UsageError('variable %r is not a HasTraits instance' % args.variable)
from traits.has_traits import not_event
from traits.trait_errors import TraitError
names = obj.trait_names(type=not_event)
names.sort()
key_values = []
for name in names:
try:
value = getattr(obj, name)
except (AttributeError, TraitError), e:
pvalue = '<undefined>'
else:
pvalue = pretty(value)
key_values.append((name, pvalue))
def __call__(self, otherself, arg):
"""Uber-pretty-printing display hook.
Called for displaying the result to the user.
"""
if self.shell.pprint:
out = pretty.pretty(arg, verbose=self.verbose)
if '\n' in out:
# So that multi-line strings line up with the left column of
# the screen, instead of having the output prompt mess up
# their first line.
Term.cout.write('\n')
print >>Term.cout, out
else:
raise TryNext
def __call__(self, otherself, arg):
"""Uber-pretty-printing display hook.
Called for displaying the result to the user.
"""
if self.shell.pprint:
out = pretty.pretty(arg, verbose=self.verbose)
if '\n' in out:
# So that multi-line strings line up with the left column of
# the screen, instead of having the output prompt mess up
# their first line.
Term.cout.write('\n')
print >> Term.cout, out
else:
raise TryNext
def pretty_result_display(self, arg):
""" Uber-pretty-printing display hook.
Called for displaying the result to the user.
"""
if ip.options.pprint:
verbose = getattr(ip.options, 'pretty_verbose', False)
out = pretty.pretty(arg, verbose=verbose)
if '\n' in out:
# So that multi-line strings line up with the left column of
# the screen, instead of having the output prompt mess up
# their first line.
Term.cout.write('\n')
print >> Term.cout, out
else:
raise IPython.ipapi.TryNext
def pretty_result_display(self, arg):
""" Uber-pretty-printing display hook.
Called for displaying the result to the user.
"""
if ip.options.pprint:
verbose = getattr(ip.options, 'pretty_verbose', False)
out = pretty.pretty(arg, verbose=verbose)
if '\n' in out:
# So that multi-line strings line up with the left column of
# the screen, instead of having the output prompt mess up
# their first line.
Term.cout.write('\n')
print >>Term.cout, out
else:
raise TryNext
def print_traits(self, arg):
""" Print the traits of an object.
"""
try:
from IPython.external.pretty import pretty
except ImportError:
import pprint
pretty = pprint.pformat
args = parse_argstring(self.print_traits, arg)
obj = self.get_variable(args.variable)
if not hasattr(obj, 'trait_names'):
raise UsageError('variable %r is not a HasTraits instance' %
args.variable)
from traits.has_traits import not_event
from traits.trait_errors import TraitError
names = obj.trait_names(type=not_event)
names.sort()
key_values = []
for name in names:
try:
value = getattr(obj, name)
except (AttributeError, TraitError):
pvalue = '<undefined>'
else:
pvalue = pretty(value)
key_values.append((name, pvalue))
if not args.group:
print(utils.wrap_key_values(key_values))
else:
trait_values = dict(key_values)
for cls in inspect.getmro(type(obj))[::-1]:
if hasattr(cls, 'class_trait_names'):
local_key_values = []
for trait in cls.class_trait_names():
if trait in trait_values:
local_key_values.append(
(trait, trait_values.pop(trait)))
if local_key_values:
name = getattr(cls, '__name__', repr(cls))
print(name)
print('-' * len(name))
print(utils.wrap_key_values(sorted(local_key_values)))
print()
def test_for_type(self):
self.prd.for_type(A, a_pprinter)
a = A()
result = pretty.pretty(a)
self.assertEquals(result, "<A>")
def test_for_type(self):
self.prd.for_type(A, a_pprinter)
a = A()
result = pretty.pretty(a)
self.assertEquals(result, "<A>")
