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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def lookupProcessor(name):
 """Lookup processor class object by its name"""

    if name in _proc_lookup:
        return _proc_lookup[name]
    else:
        error_string = 'If you are creating a new processor, please read the\
documentation on creating a new processor'
        raise LookupError("Unknown processor %s\n%s" % (name, error_string))