class_docstr: The MovieLens 100K data set.  This older data set is in a different format from
  the more current data sets loaded by :class:`MovieLens`.
class_docstr_tok: ["The","MovieLens","100K","data","set",".","This","older","data","set","is","in","a","different","format","from","the","more","current","data","sets","loaded","by",":","class",":","`","MovieLens","`","."]
docstr: Query whether the data set exists.
docstr_tok: ["Query","whether","the","data","set","exists","."]
code: def available(self):
      "Query whether the data set exists."
      return (self.path / "u.data").exists()
  
imports: import os.path
  from pathlib import Path
  import logging
  import pandas
  import numpy
  from lenskit.util import cached
label_desc: Use image node_id 2 for calling the ML100K obj's underlying member method code with example usage: obj.available() and returns: unknown