class_docstr: Pytest test runner.
  
  This class is made available in ``skimage._shared.testing``, and a test
  function is typically added to a package's __init__.py like so::
  
    from skimage._shared.testing import PytestTester
    test = PytestTester(__name__)
    del PytestTester
  
  Calling this test function finds and runs all tests associated with the
  module and all its sub-modules.
  
  Attributes
  ----------
  module_name : str
      Full path to the package to test.
  
  Parameters
  ----------
  module_name : module name
      The name of the module to test.
class_docstr_tok: ["Pytest","test","runner",".","This","class","is","made","available","in","``","skimage._shared.testing","``",",","and","a","test","function","is","typically","added","to","a","package","'s","__init__.py","like","so",":",":","from","skimage._shared.testing","import","PytestTester","test","=","PytestTester","(","__name__",")","del","PytestTester","Calling","this","test","function","finds","and","runs","all","tests","associated","with","the","module","and","all","its","sub-modules",".","Attributes","--","--","--","--","--","module_name",":","str","Full","path","to","the","package","to","test",".","Parameters","--","--","--","--","--","module_name",":","module","name","The","name","of","the","module","to","test","."]
code: def __init__(self, module_name):
      self.module_name = module_name
  
imports: import os
  import sys
label_desc: Use image node_id 1 to create a new PytestTester object  with example: obj = PytestTester(module_name)