djavu-asus/emacs/elpa/elpy-20230803.1455/elpy/yapfutil.py

   1 """Glue for the "yapf" library.
   2
   3 """
   4
   5 import os
   6 import sys
   7
   8 from elpy.rpc import Fault
   9
  10 YAPF_NOT_SUPPORTED = sys.version_info < (2, 7) or (
  11     sys.version_info >= (3, 0) and sys.version_info < (3, 4))
  12
  13 try:
  14     if YAPF_NOT_SUPPORTED:
  15         yapf_api = None
  16     else:
  17         from yapf.yapflib import yapf_api
  18         from yapf.yapflib import file_resources
  19 except ImportError:  # pragma: no cover
  20     yapf_api = None
  21
  22
  23 def fix_code(code, directory):
  24     """Formats Python code to conform to the PEP 8 style guide.
  25
  26     """
  27     if not yapf_api:
  28         raise Fault('yapf not installed', code=400)
  29     style_config = file_resources.GetDefaultStyleForDir(directory or os.getcwd())
  30     try:
  31         reformatted_source, _ = yapf_api.FormatCode(code,
  32                                                     filename='<stdin>',
  33                                                     style_config=style_config,
  34                                                     verify=False)
  35         return reformatted_source
  36     except Exception as e:
  37             raise Fault("Error during formatting: {}".format(e),
  38                         code=400)