code: def get_data(package, resource):
      """Get a resource from a package.
  
      This is a wrapper round the PEP 302 loader get_data API. The package
      argument should be the name of a package, in standard module format
      (foo.bar). The resource argument should be in the form of a relative
      filename, using '/' as the path separator. The parent directory name '..'
      is not allowed, and nor is a rooted name (starting with a '/').
  
      The function returns a binary string, which is the contents of the
      specified resource.
  
      For packages located in the filesystem, which have already been imported,
      this is the rough equivalent of
  
          d = os.path.dirname(sys.modules[package].__file__)
          data = open(os.path.join(d, resource), 'rb').read()
  
      If the package cannot be located or loaded, or it uses a PEP 302 loader
      which does not support get_data(), then None is returned.
      """
  
      spec = importlib.util.find_spec(package)
      if spec is None:
          return None
      loader = spec.loader
      if loader is None or not hasattr(loader, "get_data"):
          return None
      # XXX needs test
      mod = sys.modules.get(package) or importlib._bootstrap._load(spec)
      if mod is None or not hasattr(mod, "__file__"):
          return None
  
      # Modify the resource name to be compatible with the loader.get_data
      # signature - an os.path format "filename" starting with the dirname of
      # the package's __file__
      parts = resource.split("/")
      parts.insert(0, os.path.dirname(mod.__file__))
      resource_name = os.path.join(*parts)
      return loader.get_data(resource_name)
  
imports: from collections import namedtuple
  from functools import singledispatch
  import importlib
  import importlib.util
  import importlib.machinery
  import os
  import os.path
  import sys
  from types import ModuleType
  import warnings
label_desc: Use image node_id 11 for calling a global function with example usage: get_data(package, resource) and returns: loader, None, None, None