docstr: Return a comparable version object
  
  If no version found, use LooseVersion('0.0.0')
docstr_tok: ["Return","a","comparable","version","object","If","no","version","found",",","use","LooseVersion","(","'","0.0.0","'",")"]
code: def looseversion(cls):
      """Return a comparable version object
  
      If no version found, use LooseVersion('0.0.0')
      """
      return LooseVersion(cls.version() or "0.0.0")
  
file_path: nipype/nipype/interfaces/mrtrix3/base.py
imports: from looseversion import LooseVersion
  from ...None import logging
  from ...utils.filemanip import which
  from ..base import CommandLineInputSpec, CommandLine, traits, File, isdefined, PackageInfo
label_desc: Use image node_id 2 for calling the Info obj's underlying member method code with example usage: obj.looseversion(cls) and returns: LooseVersion