def append_identifier(self, spaced_attribute_name, allow_spaces=False, default_value=None):
r"""Appends Python identifier.
String beginning with a letter or underscore and containing only
letters, digits and underscores.
Returns prompt.
"""
help_template = "value must be valid Python identifier."
helper = lambda x: predicates.is_identifier(x, allow_spaces=allow_spaces)
self._make_prompt(
spaced_attribute_name, validation_function=helper, help_template=help_template, default_value=default_value
)
def test_predicates_02():
assert predicates.is_identifier('foo_bar')
assert predicates.is_identifier('FooBar')
assert predicates.is_identifier('_foo_bar')
assert predicates.is_identifier('__foo_bar')
assert predicates.is_identifier('_')
assert predicates.is_identifier('f')
assert not predicates.is_boolean(None)
assert not predicates.is_boolean('')
assert not predicates.is_boolean('1')
assert not predicates.is_boolean('foo_!')
assert not predicates.is_boolean('foo_#')
assert not predicates.is_boolean('foo_@')
def append_identifier(
self,
spaced_attribute_name,
allow_spaces=False,
default_value=None,
):
r'''Appends Python identifier.
String beginning with a letter or underscore and containing only
letters, digits and underscores.
Returns prompt.
'''
help_template = 'value must be valid Python identifier.'
helper = lambda x: predicates.is_identifier(x,
allow_spaces=allow_spaces)
self._make_prompt(
spaced_attribute_name,
validation_function=helper,
help_template=help_template,
default_value=default_value,
)
