class_docstr: Class that holds a version string accompanied with maximum and minimum python version that
  this version should support. If python falls beyond version bounds it evaluates to the
  empty string
  
  Parameters
  ----------
  `ver`: str
      Version that is housed by object of this class
  `python_max_ver` : str, optional, default = None
      Maximum python version supported by this package. If empty there is no upper bound
  `python_min_ver`: str, optional, default = None
      Mimimum python version supported by this package. If empty there is no lower bound
  'alias': std, optional, default = None
      Alternative name that should be used during installation instead of general package name
  `dependencies` : list of str, optional, default = None
      List of packages in ["name==version", ] format that should be installed together with
      a given package
class_docstr_tok: ["Class","that","holds","a","version","string","accompanied","with","maximum","and","minimum","python","version","that","this","version","should","support",".","If","python","falls","beyond","version","bounds","it","evaluates","to","the","empty","string","Parameters","--","--","--","--","--","`","ver","`",":","str","Version","that","is","housed","by","object","of","this","class","`","python_max_ver","`",":","str",",","optional",",","default","=","None","Maximum","python","version","supported","by","this","package",".","If","empty","there","is","no","upper","bound","`","python_min_ver","`",":","str",",","optional",",","default","=","None","Mimimum","python","version","supported","by","this","package",".","If","empty","there","is","no","lower","bound","'alias","'",":","std",",","optional",",","default","=","None","Alternative","name","that","should","be","used","during","installation","instead","of","general","package","name","`","dependencies","`",":","list","of","str",",","optional",",","default","=","None","List","of","packages","in","[","``","name==version","''",",","]","format","that","should","be","installed","together","with","a","given","package"]
code: def dependencies(self):
      return self.dependent_packages
  
imports: import argparse
  import sys
  from pip._vendor.packaging.version import parse
  import urllib.parse
  from urllib.request import urlopen, HTTPError, Request, URLError
label_desc: Use image node_id 5 for calling the PckgVer obj's underlying member method code with example usage: obj.dependencies() and returns: self