def info(self):
aClass = self.aClass
if type(aClass) is not str:
aClass = aClass.__name__
result = class_of(aClass)
if self.or_none is None:
return result + ' or None'
return result
def info ( self ):
aClass = self.aClass
if type( aClass ) is not str:
aClass = aClass.__name__
result = class_of( aClass )
if self.or_none is None:
return result + ' or None'
return result
def set_args ( self ):
if self.desc is None:
extra = ''
else:
extra = ' specifies %s and' % self.desc
obj = getattr( self, 'object', None )
if obj is not None:
self.args = ( "%s '%s' trait of %s instance%s must be %s, "
"but a value of %s was specified." % (
self.prefix, self.name, class_of( obj ), extra,
self.info, self.value ) )
else:
self.args = ( "%s '%s' trait%s must be %s, but a value of %s was "
"specified." % ( self.prefix, self.name, extra,
self.info, self.value ) )
def validate(self, object, name, value):
# If the value is already the desired type, then return it:
if type(value) is self.aType:
return value
# Else try to cast it to the specified type:
try:
return self.aType(value)
except:
# Otherwise, raise an exception:
tv = type(value)
if tv is InstanceType:
kind = class_of(value)
else:
kind = repr(value)
self.error(object, name, '%s (i.e. %s)' % (str(tv)[1:-1], kind))
def validate ( self, object, name, value ):
# If the value is already the desired type, then return it:
if type( value ) is self.aType:
return value
# Else try to cast it to the specified type:
try:
return self.aType( value )
except:
# Otherwise, raise an exception:
tv = type( value )
if tv is InstanceType:
kind = class_of( value )
else:
kind = repr( value )
self.error( object, name, '%s (i.e. %s)' % (
str( tv )[1:-1], kind ) )
def set_args(self):
if self.desc is None:
extra = ''
else:
extra = ' specifies %s and' % self.desc
obj = getattr(self, 'object', None)
# Note: self.args must be a tuple so be sure to leave the trailing
# commas.
if obj is not None:
self.args = ("%s '%s' trait of %s instance%s must be %s, "
"but a value of %s was specified." %
(self.prefix, self.name, class_of(obj), extra,
self.info, self.value)),
else:
self.args = (
"%s '%s' trait%s must be %s, but a value of %s was "
"specified." %
(self.prefix, self.name, extra, self.info, self.value)),
def validate ( self, object, name, value ):
fv = self.fast_validate
tv = type( value )
# If the value is already the desired type, then return it:
if tv is fv[1]:
return value
# Else see if it is one of the coercable types:
for typei in fv[2:]:
if tv is typei:
# Return the coerced value:
return fv[1]( value )
# Otherwise, raise an exception:
if tv is InstanceType:
kind = class_of( value )
else:
kind = repr( value )
self.error( object, name, '%s (i.e. %s)' % ( str( tv )[1:-1], kind ) )
def validate(self, object, name, value):
fv = self.fast_validate
tv = type(value)
# If the value is already the desired type, then return it:
if tv is fv[1]:
return value
# Else see if it is one of the coercable types:
for typei in fv[2:]:
if tv is typei:
# Return the coerced value:
return fv[1](value)
# Otherwise, raise an exception:
if tv is InstanceType:
kind = class_of(value)
else:
kind = repr(value)
self.error(object, name, '%s (i.e. %s)' % (str(tv)[1:-1], kind))
def _write_only ( object, name ):
raise TraitError, "The '%s' trait of %s instance is 'write only'." % (
name, class_of( object ) )
def _read_only(object, name, value):
raise TraitError, "The '%s' trait of %s instance is 'read only'." % (
name, class_of(object))
def _undefined_get(object, name):
raise TraitError, ("The '%s' trait of %s instance is a property that has "
"no 'get' or 'set' method") % (name, class_of(object))
def keyword_error(self, method, object, name, value):
raise TraitError, (
"The '%s' keyword argument of the %s method of "
"%s instance must be %s, but a value of %s was "
"specified." %
(name, method.tm_name, class_of(object), self.info(), value))
def _write_only(object, name):
raise TraitError, "The '%s' trait of %s instance is 'write only'." % (
name, class_of(object))
def return_error ( self, method, object, value ):
raise TraitError, ("The result of the %s method of %s instance must "
"be %s, but a value of %s was returned." % (
method.tm_name, class_of( object ), self.info(),
value ) )
def keyword_error ( self, method, object, name, value ):
raise TraitError, ("The '%s' keyword argument of the %s method of "
"%s instance must be %s, but a value of %s was "
"specified." % ( name, method.tm_name,
class_of( object ), self.info(), value ) )
def validate ( self, object, name, value ):
raise TraitError, (
"The '%s' trait of %s instance has an unknown type. "
"Contact the developer to correct the problem." % (
name, class_of( object ) ) )
def len_error ( self, len ):
raise TraitError, ( "The '%s' trait of %s instance must be %s, "
"but you attempted to change its length to %d element%s." % (
self.name, class_of( self.object ), self.trait.info(),
len, 's'[ len == 1: ] ) )
def len_error(self, len):
raise TraitError, (
"The '%s' trait of %s instance must be %s, "
"but you attempted to change its length to %d element%s." %
(self.name, class_of(
self.object), self.trait.info(), len, 's'[len == 1:]))
def dup_arg_error ( self, method, arg_num, object, name ):
raise TraitError, ("The '%s' parameter (argument %d) of the %s method "
"of %s instance was specified as both a positional "
"and keyword value."
% ( name, arg_num, method.tm_name,
class_of( object ) ) )
def return_error(self, method, object, value):
raise TraitError, (
"The result of the %s method of %s instance must "
"be %s, but a value of %s was returned." %
(method.tm_name, class_of(object), self.info(), value))
def dup_arg_error(self, method, arg_num, object, name):
raise TraitError, ("The '%s' parameter (argument %d) of the %s method "
"of %s instance was specified as both a positional "
"and keyword value." %
(name, arg_num, method.tm_name, class_of(object)))
def missing_arg_error(self, method, arg_num, object, name):
raise TraitError, (
"The '%s' parameter (argument %d) of the %s method "
"of %s instance must be specified, but was omitted." %
(name, arg_num, method.tm_name, class_of(object)))
def _read_only ( object, name, value ):
raise TraitError, "The '%s' trait of %s instance is 'read only'." % (
name, class_of( object ) )
def validate(self, object, name, value):
raise TraitError, (
"The '%s' trait of %s instance has an unknown type. "
"Contact the developer to correct the problem." %
(name, class_of(object)))
def _undefined_get ( object, name ):
raise TraitError, ("The '%s' trait of %s instance is a property that has "
"no 'get' or 'set' method") % (
name, class_of( object ) )
def arg_error(self, method, arg_num, object, name, value):
raise TraitError, ("The '%s' parameter (argument %d) of the %s method "
"of %s instance must be %s, but a value of %s was "
"specified." %
(name, arg_num, method.tm_name, class_of(object),
self.info(), value))
def missing_arg_error ( self, method, arg_num, object, name ):
raise TraitError, ("The '%s' parameter (argument %d) of the %s method "
"of %s instance must be specified, but was omitted."
% ( name, arg_num, method.tm_name,
class_of( object ) ) )
def arg_error ( self, method, arg_num, object, name, value ):
raise TraitError, ("The '%s' parameter (argument %d) of the %s method "
"of %s instance must be %s, but a value of %s was "
"specified." % ( name, arg_num, method.tm_name,
class_of( object ), self.info(), value ) )
