python updates

Author: TimidRobot

requirements.txt

@@ -7,39 +7,41 @@
 
 -i https://pypi.org/simple
 appdirs==1.4.4
-attrs==20.3.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 babel==2.9.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
-black==19.10b0
+black==20.8b1
 certifi==2020.12.5
 cffi==1.14.5
 chardet==4.0.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 click==7.1.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 cryptography==3.3.2
 exifread==2.3.2
 filetype==1.0.7
-flake8==3.8.4
+flake8==3.9.0
 flask==1.1.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 idna==2.10; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 inifile==0.4
+isort==5.8.0
 itsdangerous==1.1.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 jinja2==2.11.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 lektor==3.2.0
 markupsafe==1.1.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 mccabe==0.6.1
 mistune==0.8.4
+mypy-extensions==0.4.3
 pathspec==0.8.1
-pycodestyle==2.6.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+pycodestyle==2.7.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 pycparser==2.20; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
-pyflakes==2.2.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+pyflakes==2.3.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 pyopenssl==20.0.1
 python-slugify==4.0.1
 pytz==2021.1
-regex==2020.11.13
+regex==2021.4.4
 requests[security]==2.25.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
-six==1.15.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'
+six==1.15.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 text-unidecode==1.3
-toml==0.10.2; python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'
+toml==0.10.2; python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'
 typed-ast==1.4.2
-urllib3==1.26.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'
-watchdog==2.0.1; python_version >= '3.6'
+typing-extensions==3.7.4.3
+urllib3==1.26.4; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'
+watchdog==2.0.2; python_version >= '3.6'
 werkzeug==0.16.1