code: def compile(
      file,
      cfile=None,
      dfile=None,
      doraise=False,
      optimize=-1,
      invalidation_mode=None,
      quiet=0,
  ):
      """Byte-compile one Python source file to Python bytecode.
  
      :param file: The source file name.
      :param cfile: The target byte compiled file name.  When not given, this
          defaults to the PEP 3147/PEP 488 location.
      :param dfile: Purported file name, i.e. the file name that shows up in
          error messages.  Defaults to the source file name.
      :param doraise: Flag indicating whether or not an exception should be
          raised when a compile error is found.  If an exception occurs and this
          flag is set to False, a string indicating the nature of the exception
          will be printed, and the function will return to the caller. If an
          exception occurs and this flag is set to True, a PyCompileError
          exception will be raised.
      :param optimize: The optimization level for the compiler.  Valid values
          are -1, 0, 1 and 2.  A value of -1 means to use the optimization
          level of the current interpreter, as given by -O command line options.
      :param invalidation_mode:
      :param quiet: Return full output with False or 0, errors only with 1,
          and no output with 2.
  
      :return: Path to the resulting byte compiled file.
  
      Note that it isn't necessary to byte-compile Python modules for
      execution efficiency -- Python itself byte-compiles a module when
      it is loaded, and if it can, writes out the bytecode to the
      corresponding .pyc file.
  
      However, if a Python installation is shared between users, it is a
      good idea to byte-compile all modules upon installation, since
      other users may not be able to write in the source directories,
      and thus they won't be able to write the .pyc file, and then
      they would be byte-compiling every module each time it is loaded.
      This can slow down program start-up considerably.
  
      See compileall.py for a script/module that uses this module to
      byte-compile all installed files (or all files in selected
      directories).
  
      Do note that FileExistsError is raised if cfile ends up pointing at a
      non-regular file or symlink. Because the compilation uses a file renaming,
      the resulting file would be regular and thus not the same type of file as
      it was previously.
      """
      if invalidation_mode is None:
          invalidation_mode = _get_default_invalidation_mode()
      if cfile is None:
          if optimize >= 0:
              optimization = optimize if optimize >= 1 else ""
              cfile = importlib.util.cache_from_source(
                  file, optimization=optimization
              )
          else:
              cfile = importlib.util.cache_from_source(file)
      if os.path.islink(cfile):
          msg = (
              "{} is a symlink and will be changed into a regular file if "
              "import writes a byte-compiled file to it"
          )
          raise FileExistsError(msg.format(cfile))
      elif os.path.exists(cfile) and not os.path.isfile(cfile):
          msg = (
              "{} is a non-regular file and will be changed into a regular "
              "one if import writes a byte-compiled file to it"
          )
          raise FileExistsError(msg.format(cfile))
      loader = importlib.machinery.SourceFileLoader(
          "<py_compile>", file
      )
      source_bytes = loader.get_data(file)
      try:
          code = loader.source_to_code(
              source_bytes, dfile or file, _optimize=optimize
          )
      except Exception as err:
          py_exc = PyCompileError(err.__class__, err, dfile or file)
          if quiet < 2:
              if doraise:
                  raise py_exc
              else:
                  sys.stderr.write(py_exc.msg + "\n")
          return
      try:
          dirname = os.path.dirname(cfile)
          if dirname:
              os.makedirs(dirname)
      except FileExistsError:
          pass
      if invalidation_mode == PycInvalidationMode.TIMESTAMP:
          source_stats = loader.path_stats(file)
          bytecode = (
              importlib._bootstrap_external._code_to_timestamp_pyc(
                  code, source_stats["mtime"], source_stats["size"]
              )
          )
      else:
          source_hash = importlib.util.source_hash(source_bytes)
          bytecode = importlib._bootstrap_external._code_to_hash_pyc(
              code,
              source_hash,
              (invalidation_mode == PycInvalidationMode.CHECKED_HASH),
          )
      mode = importlib._bootstrap_external._calc_mode(file)
      importlib._bootstrap_external._write_atomic(cfile, bytecode, mode)
      return cfile
  
file_path: catboost/contrib/tools/python3/src/Lib/py_compile.py
imports: import enum
  import importlib._bootstrap_external
  import importlib.machinery
  import importlib.util
  import os
  import os.path
  import sys
  import traceback
label_desc: Use image node_id 2 for calling a global function with example usage: compile(file, cfile, dfile, doraise, optimize, invalidation_mode, quiet) and returns: cfile