docs: flake8 fixes

docs/build_docs.py

@@ -317,6 +317,7 @@ GH_LINK_RE = r"https://github.com/espressif/esp-idf/(?:tree|blob|raw)/[^\s]+"
 # we allow this one link, because we always want users to see the latest support policy
 GH_LINK_ALLOWED = ["https://github.com/espressif/esp-idf/blob/master/SUPPORT_POLICY.md"]
 
+
 def action_gh_linkcheck(args):
     print("Checking for hardcoded GitHub links\n")
 

docs/conf_common.py

@@ -160,6 +160,7 @@ def update_exclude_patterns(tags):
                   'api-reference/peripherals/temp_sensor.rst']:
             exclude_patterns.append(e)
 
+
 # The reST default role (used for this markup: `text`) to use for all
 # documents.
 # default_role = None
@@ -370,9 +371,9 @@ def setup(app):
     app.config.breathe_projects = {"esp32-idf": os.path.join(app.config.build_dir, "xml_in/")}
     app.config.breathe_default_project = "esp32-idf"
 
-
     setup_diag_font(app)
 
+
 def setup_diag_font(app):
     # blockdiag and other tools require a font which supports their character set
     # the font file is stored on the download server to save repo size

docs/idf_extensions/gen_idf_tools_links.py

@@ -3,6 +3,7 @@ from __future__ import print_function
 import os.path
 from util import copy_if_modified, call_with_python
 
+
 def setup(app):
     # we don't actually need idf-info, just a convenient event to trigger this on
     app.connect('idf-info', generate_idf_tools_links)

docs/zh_CN/conf.py

@@ -10,7 +10,6 @@ import sys
 import os
 sys.path.insert(0, os.path.abspath('..'))
 from conf_common import *  # noqa: F401, F403 - need to make available everything from common
-from idf_extensions.util import download_file_if_missing  # noqa: E402 - need to import from common folder
 
 # General information about the project.
 project = u'ESP-IDF 编程指南'