[Lint] Update pre-commit hook and isort versions

 * Fixed black hook requiring Py3.6 to installed locally. Will now assume
Py3.6+ in installed.
 * Added isort traceback in pre-commit flake8 hook fails
 * Updated versions of Black, Prettier and isort
 * Keep Flake8 at 3.7.9 due to E402 issue: https://gitlab.com/pycqa/flake8/-/issues/638
 * New pyproject config for isort v5 with fixes for Python 2 imports.
 * Fixed travis config to run Python 3.6 for lint run. Replaced the
virtualenv with_system_site_packages config with Travis specific Python
config value so lint run doesn't attempt to append with_system_site_packages
to Python 3.6 command.

1 files changed, 0 insertions, 18 deletions

diff --git a/setup.cfg b/setup.cfg
index e52fa07cd..b4071f53e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -24,24 +24,6 @@ includes = glib, gio, cairo, pango, pangocairo, atk, gobject, gtk.keysyms,
            HTMLParser
 frameworks = CoreFoundation, Foundation, AppKit
 
-[isort]
-known_standard_library = future_builtins
-known_third_party =
-# Ignore gtk modules, primarily for tox testing.
-    cairo, gi,
-# Ignore other module dependencies for pre-commit isort.
-    twisted, OpenSSL, pytest, recommonmark, chardet, pkg_resources, zope, mock,
-    sphinx, rencode, six, mako
-known_first_party = msgfmt, deluge
-order_by_type = true
-not_skip = __init__.py
-# Black compatible settings
-multi_line_output=3
-include_trailing_comma=True
-force_grid_wrap=0
-line_length=88
-use_parentheses=True
-
 [flake8]
 max-line-length = 120
 builtins = _,_n,__request__