Bump mypy from 0.780 to 0.781 and pre-commit autoupdate (#1618)

* Bump mypy from 0.780 to 0.781

Bumps [mypy](https://github.com/python/mypy) from 0.780 to 0.781.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.780...v0.781)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* pre-commit autoupdate

* Run tox -e lint

* Fix flake error

* precommit autoupdate

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Steven Loria <sloria1@gmail.com>

Author: dependabot-preview[bot]

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/asottile/pyupgrade
-  rev: v1.26.0
+  rev: v2.6.2
   hooks:
   - id: pyupgrade
     args: ["--py3-plus"]
@@ -10,16 +10,16 @@ repos:
   - id: black
     language_version: python3
 - repo: https://gitlab.com/pycqa/flake8
-  rev: 3.7.9
+  rev: 3.8.3
   hooks:
   - id: flake8
-    additional_dependencies: ['flake8-bugbear==20.1.0']
+    additional_dependencies: ['flake8-bugbear==20.1.4']
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v0.780
+  rev: v0.782
   hooks:
   - id: mypy
 - repo: https://github.com/asottile/blacken-docs
-  rev: v1.5.0-1
+  rev: v1.7.0
   hooks:
   - id: blacken-docs
     additional_dependencies: [black==19.10b0]

setup.py

@@ -4,7 +4,7 @@
 EXTRAS_REQUIRE = {
     "tests": ["pytest", "pytz", "simplejson"],
     "lint": [
-        "mypy==0.780",
+        "mypy==0.782",
         "flake8==3.8.3",
         "flake8-bugbear==20.1.4",
         "pre-commit~=2.4",
@@ -25,7 +25,7 @@ def find_version(fname):
     Raises RuntimeError if not found.
     """
     version = ""
-    with open(fname, "r") as fp:
+    with open(fname) as fp:
         reg = re.compile(r'__version__ = [\'"]([^\'"]*)[\'"]')
         for line in fp:
             m = reg.match(line)

tests/test_schema.py

@@ -47,6 +47,7 @@
 
 random.seed(1)
 
+
 # Run tests with both verbose serializer and 'meta' option serializer
 @pytest.mark.parametrize("SchemaClass", [UserSchema, UserMetaSchema])
 def test_serializing_basic_object(SchemaClass, user):