code: def setup_compiler_info(self, options, environ):
      def find_exe(cmd, path=None):
          if not cmd:
              return None
          parts = shlex.split(cmd)
          exe, args = parts[0], parts[1:]
          if not os.path.isabs(exe) and path:
              exe = os.path.basename(exe)
          exe = shutil.which(exe, path=path)
          if not exe:
              return None
          return " ".join([exe, *args])
  
      COMPILERS = (
          ("mpicc", ["mpicc"]),
          ("mpicxx", ["mpicxx", "mpic++", "mpiCC"]),
          ("mpild", []),
      )
      #
      compiler_info = {}
      PATH = environ.get("PATH", "")
      for name, _ in COMPILERS:
          cmd = (
              environ.get(f"MPI4PY_BUILD_{name.upper()}")
              or environ.get(name.upper())
              or getattr(options, name, None)
              or self.compiler_info.get(name)
              or None
          )
          if cmd:
              exe = find_exe(cmd, path=PATH)
              if exe:
                  path = os.path.dirname(exe)
                  PATH = path + os.path.pathsep + PATH
                  compiler_info[name] = exe
              else:
                  self.log.error("error: '%s' not found", cmd)
      #
      if not self and not compiler_info:
          for name, candidates in COMPILERS:
              for cmd in candidates:
                  cmd = find_exe(cmd)
                  if cmd:
                      compiler_info[name] = cmd
                      break
      #
      self.compiler_info.update(compiler_info)
  
imports: import os
  import sys
  import shlex
  import shutil
  import logging
  import platform
  from collections import OrderedDict
  from configparser import ConfigParser
  from configparser import Error
label_desc: Use image node_id 12 for calling the Config obj's underlying member method code with example usage: obj.setup_compiler_info(options, environ) and returns: str, None, None