code: def find_pxd_file(self, qualified_name, pos, sys_path=False):
      # Search include path (and sys.path if sys_path is True) for
      # the .pxd file corresponding to the given fully-qualified
      # module name.
      # Will find either a dotted filename or a file in a
      # package directory. If a source file position is given,
      # the directory containing the source file is searched first
      # for a dotted filename, and its containing package root
      # directory is searched first for a non-dotted filename.
      pxd = self.search_include_directories(
          qualified_name, ".pxd", pos, sys_path=sys_path
      )
      if (
          pxd is None
      ):  # XXX Keep this until Includes/Deprecated is removed
          if qualified_name.startswith("python") or qualified_name in (
              "stdlib",
              "stdio",
              "stl",
          ):
              standard_include_path = os.path.abspath(
                  os.path.normpath(
                      os.path.join(
                          os.path.dirname(__file__),
                          os.path.pardir,
                          "Includes",
                      )
                  )
              )
              deprecated_include_path = os.path.join(
                  standard_include_path, "Deprecated"
              )
              self.include_directories.append(deprecated_include_path)
              try:
                  pxd = self.search_include_directories(
                      qualified_name, ".pxd", pos
                  )
              finally:
                  self.include_directories.pop()
              if pxd:
                  name = qualified_name
                  if name.startswith("python"):
                      warning(
                          pos,
                          "'%s' is deprecated, use 'cpython'" % name,
                          1,
                      )
                  elif name in ("stdlib", "stdio"):
                      warning(
                          pos,
                          "'%s' is deprecated, use 'libc.%s'"
                          % (name, name),
                          1,
                      )
                  elif name in ("stl"):
                      warning(
                          pos,
                          "'%s' is deprecated, use 'libcpp.*.*'" % name,
                          1,
                      )
      if pxd is None and Options.cimport_from_pyx:
          return self.find_pyx_file(qualified_name, pos)
      return pxd
  
imports: from __future__ import absolute_import
  import os
  import re
  import sys
  import io
  from .None import Errors
  from .StringEncoding import EncodedString
  from .Scanning import PyrexScanner, FileSourceDescriptor
  from .Errors import PyrexError, CompileError, error, warning
  from .Symtab import ModuleScope
  from ..None import Utils
  from .None import Options
  from .None import Version
label_desc: Use image node_id 8 for calling the Context obj's underlying member method code with example usage: obj.find_pxd_file(qualified_name, pos, sys_path) and returns: pxd, self