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Parameter.child raises KeyError if requested child name does not exist

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This commit is contained in:
Luke Campagnola 2017-09-29 08:55:36 -07:00
parent 0f910c45d1
commit bf31a5ba99
1 changed files with 6 additions and 5 deletions
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11
pyqtgraph/parametertree/Parameter.py
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@ -653,18 +653,19 @@ class Parameter(QtCore.QObject):
"""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)
Added in version 0.9.9. Ealier versions used the 'param' method, which is still Added in version 0.9.9. Earlier versions used the 'param' method, which is still
implemented for backward compatibility.""" implemented for backward compatibility.
"""
try: try:
param = self.names[names[0]] param = self.names[names[0]]
except KeyError: except KeyError:
raise Exception("Parameter %s has no child named %s" % (self.name(), names[0])) raise KeyError("Parameter %s has no child named %s" % (self.name(), names[0]))
if len(names) > 1: if len(names) > 1:
return param.param(*names[1:]) return param.child(*names[1:])
else: else:
return param return param
def param(self, *names): def param(self, *names):
# for backward compatibility. # for backward compatibility.
return self.child(*names) return self.child(*names)