Add keys() method to Parameter class

This returns the names attribute, allowing **unpacking of Parameter subclasses.
This commit is contained in:
Chris Mullins 2021-02-28 03:00:19 +00:00
parent 5bfe8d5a46
commit 9ed51cd1e2
2 changed files with 20 additions and 0 deletions

View File

@ -677,6 +677,9 @@ class Parameter(QtCore.QObject):
names = (names,) names = (names,)
return self.param(*names).setValue(value) return self.param(*names).setValue(value)
def keys(self):
return self.names
def child(self, *names): def child(self, *names):
"""Return a child parameter. """Return a child parameter.
Accepts the name of the child or a tuple (path, to, child) Accepts the name of the child or a tuple (path, to, child)

View File

@ -34,3 +34,20 @@ def test_parameter_hasdefault_none(passdefault):
p.setDefault(None) p.setDefault(None)
assert not p.hasDefault() assert not p.hasDefault()
def test_unpack_parameter():
# test that **unpacking correctly returns child name/value maps
params = [
dict(name='a', type='int', value=1),
dict(name='b', type='str', value='2'),
dict(name='c', type='float', value=3.0),
]
p = Parameter.create(name='params', type='group', children=params)
result = dict(**p)
assert 'a' in result
assert result['a'] == 1
assert 'b' in result
assert result['b'] == '2'
assert 'c' in result
assert result['c'] == 3.0