black 21+ required for py39 target version support

environment.yml

@@ -17,7 +17,7 @@ dependencies:
     - mypy>=0.900
     - pytest>=6.0
     - pytest-cov
-    - black
+    - black[colorama]>=21
     - opencv-python
     - pycocotools
     - pytorch-sphinx-theme

requirements.txt

@@ -1,4 +1,4 @@
-black
+black[colorama]>=21
 flake8
 isort[colors]>=4.3.5
 mypy>=0.900

setup.cfg

@@ -50,7 +50,7 @@ docs =
     sphinx
     pytorch-sphinx-theme
 style =
-    black
+    black[colorama]>=21
     flake8
     isort[colors]>=4.3.5
 tests =

spack.yaml

@@ -3,7 +3,7 @@ spack:
   - opencv+python3+imgcodecs+tiff+jpeg+png
   - pil
   - "python@3.6:+bz2"
-  - py-black
+  - "py-black@21:+colorama"
   - py-flake8
   - "py-isort@4.3.5:+colors"
   - "py-mypy@0.900:"