- Use a singleton pool to prevent lengthy restarts of the pool, this also means that arguments for pool size have gone.

- Removed qbar and TqdmMeter.
- Wrap chunked function for better error messages.

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "parfor"
-version = "2023.8.2"
+version = "2023.8.3"
 description = "A package to mimic the use of parfor as done in Matlab."
 authors = ["Wim Pomp <wimpomp@gmail.com>"]
 license = "GPLv3"
@@ -9,7 +9,7 @@ keywords = ["parfor", "concurrency", "multiprocessing", "parallel"]
 repository = "https://github.com/wimpomp/parfor"
 
 [tool.poetry.dependencies]
-python = "^3.5"
+python = "^3.6"
 tqdm = ">=4.50.0"
 dill = ">=0.3.0"
 pytest = { version = "*", optional = true }