Python 3.9 support added

Author: insspb

.pre-commit-config.yaml

@@ -1,23 +1,19 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.4.0
+    rev: v3.3.0
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer
       - id: check-yaml
       - id: check-added-large-files
-  - repo: https://github.com/jumanjihouse/pre-commit-hooks
-    rev: 1.11.2
-    hooks:
-      - id: markdownlint
   - repo: https://github.com/psf/black
-    rev: stable
+    rev: 20.8b1
     hooks:
       - id: black
         language_version: python3.6
         exclude: ^docs/
   - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.7.9
+    rev: 3.8.4
     hooks:
       - id: flake8
         exclude: ^docs/|^examples/

flask_mongoengine/operation_tracker.py

@@ -250,8 +250,7 @@ def reset():
 
 
 def _get_ordering(son):
-    """Helper function to extract formatted ordering from dict.
-    """
+    """Helper function to extract formatted ordering from dict."""
 
     def fmt(field, direction):
         return "{0}{1}".format({-1: "-", 1: "+"}[direction], field)

setup.py

@@ -66,6 +66,7 @@ def get_version(version_tuple):
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: Implementation :: PyPy"
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Internet :: WWW/HTTP :: Dynamic Content",

tests/test_pagination.py

@@ -35,7 +35,9 @@ def test_list_field_pagination(app, todo):
 
     comments = ["comment: %s" % i for i in range(42)]
     todo = Todo(
-        title="todo has comments", comments=comments, comment_count=len(comments),
+        title="todo has comments",
+        comments=comments,
+        comment_count=len(comments),
     ).save()
 
     # Check without providing a total

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = {py36,py37,py38,pypy3},lint
+envlist = {py36,py37,py38,py39,pypy3},lint
 
 [testenv]
 commands =