Cleanup: pep8

check_source/check_descriptions.py

check_source/check_spelling.py

check_source/check_style_c.py

check_source/check_style_c_config.py

tests/check_source/check_style_c_test.py

utils/blend2json.py

utils/blender_update_themes.py

utils/credits_git_gen.py

utils/git_log.py

utils/git_log_review_commits.py

utils/git_log_review_commits_advanced.py

utils/make_cursor_gui.py

utils_api/bpy_introspect_ui.py

utils_build/cmake-flags

utils_ide/qtcreator/externaltools/qtc_assembler_preview.py

utils_ide/qtcreator/externaltools/qtc_blender_diffusion.py

utils_ide/qtcreator/externaltools/qtc_doxy_file.py

utils_ide/qtcreator/externaltools/qtc_project_update.py

utils_ide/qtcreator/externaltools/qtc_select_surround.py

utils_ide/qtcreator/externaltools/qtc_sort_paths.py