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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.
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
implemented for backward compatibility."""
Added in version 0.9.9. Earlier versions used the 'param' method, which is still
implemented for backward compatibility.
"""
try:
param = self.names[names[0]]
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:
return param.param(*names[1:])
return param.child(*names[1:])
else:
return param
def param(self, *names):
# for backward compatibility.
return self.child(*names)