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PythonでDragonfly libを使用しています。私はWindows7 + python2.6に取り組んでいます。ただし、デモ コードを実行しようとすると (Dragonfly の例)

from dragonfly.all import Grammar, CompoundRule

# Voice command rule combining spoken form and recognition processing.
class ExampleRule(CompoundRule):
    spec = "do something computer"                  # Spoken form of command.
    def _process_recognition(self, node, extras):   # Callback when command is spoken.
        print "Voice command spoken."

# Create a grammar which contains and loads the command rule.
grammar = Grammar("example grammar")                # Create a grammar to contain the command rule.
grammar.add_rule(ExampleRule())                     # Add the command rule to the grammar.
grammar.load()                                      # Load the grammar.

次のエラーが表示されます。

Traceback (most recent call last):
  File "test.py", line 2, in <module>
    from dragonfly.all import Grammar, CompoundRule
ImportError: No module named all

どうすれば修正できますか?

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