Misc small updates (#352)

* add missing annotations

* remove old conda env file

* specify min mypy version

* update README

README.md

@@ -75,7 +75,10 @@ cuNumeric requires the following:
   - GNU Make
   - C++17 compatible compiler (g++, clang, or nvc++)
   - Fortran compiler (for building OpenBLAS; not necessary if you provide a pre-built version of OpenBLAS)
-  - the Python packages listed in `conda/cunumeric_dev.yml`
+  - the Python packages listed in any one of the conda environment files:
+    - `conda/environment-test-3.8.yml`
+    - `conda/environment-test-3.9.yml`
+    - `conda/environment-test-3.10.yml`
 
 See the [corresponding section](https://github.com/nv-legate/legate.core#dependencies)
 on the Legate Core instructions for help on installing the required Python packages

conda/environment-test-3.10.yml

@@ -23,7 +23,7 @@ dependencies:
   - clang-tools>=8
   - coverage
   - mock
-  - mypy
+  - mypy>=0.942
   - pre-commit
   - pynvml
   - pytest

conda/environment-test-3.8.yml

@@ -23,7 +23,7 @@ dependencies:
   - clang-tools>=8
   - coverage
   - mock
-  - mypy
+  - mypy>=0.942
   - pre-commit
   - pynvml
   - pytest

conda/environment-test-3.9.yml

@@ -23,7 +23,7 @@ dependencies:
   - clang-tools>=8
   - coverage
   - mock
-  - mypy
+  - mypy>=0.942
   - pre-commit
   - pynvml
   - pytest

cunumeric/coverage.py

@@ -257,13 +257,13 @@ def decorator(cls: type) -> type:
     return decorator
 
 
-def is_implemented(obj):
+def is_implemented(obj: Any) -> bool:
     return hasattr(obj, "_cunumeric") and obj._cunumeric.implemented
 
 
-def is_single(obj):
+def is_single(obj: Any) -> bool:
     return hasattr(obj, "_cunumeric") and obj._cunumeric.single
 
 
-def is_multi(obj):
+def is_multi(obj: Any) -> bool:
     return hasattr(obj, "_cunumeric") and obj._cunumeric.multi