chore: Code cleanup (#48)

.github/workflows/lint-and-test.yml

@@ -15,7 +15,6 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.7"
           - "3.8"
           - "3.9"
           - "3.10"

README.md

@@ -55,19 +55,22 @@ array([[0.  , 1.  ],
 ```
 
 ### CLI
-This library also comes with a handy CLI:
+This library can also come with a handy CLI if you install it with the `cli` extra:
 ```shell
-$ cat data.txt | knarrow
-stdin 11
-$ cat data.txt | knarrow -o value
-stdin 59874.14171519781845532648
+$ pip install "knarrow[cli]"
+$ cat data.txt | knarrow -
+<stdin> 11
+$ cat data.txt | knarrow -o value -
+<stdin> 59874.14171519781845532648
 $ knarrow --sort -d ',' -o value shuf_delim.txt
 shuf_delim.txt 20
 ```
+_(the `-` for stdin is, unfortunately, mandatory)_
+Try writing `knarrow --help` for more info.
 
 ## Similar projects
 
-While I've come up with most of these methods by myself, I am not the only one. Here is a (non-comprehensive) list of projects I've found that implement a similar funcionality and may have been an inspiration for me:
+While I've come up with most of these methods by myself, I am not the only one. Here is a (non-comprehensive) list of projects I've found that implement a similar functionality and may have been an inspiration for me:
 - [mariolpantunes/knee](https://github.com/mariolpantunes/knee)
 
-Note: this project was bootstrapped by [python-blueprint](https://github.com/johnthagen/python-blueprint)
+Note: this project was bootstrapped by [python-blueprint](https://github.com/johnthagen/python-blueprint). Since then, it has been heavily modified, though.

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 name = "knarrow"
 description = 'Shoot a knarrow to the knee'
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 license = "Apache-2.0"
 keywords = [ "optimization", "knee", "elbow", "kneedle" ]
 authors = [
@@ -21,7 +21,6 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
@@ -83,7 +82,7 @@ packages = ["src/knarrow"]
 include = ["src/knarrow/*"]
 
 [[tool.hatch.envs.test.matrix]]
-python = ["3.7", "3.8", "3.9", "3.10", "3.11"]  # matches entries in workflow
+python = ["3.8", "3.9", "3.10", "3.11"]  # matches entries in workflow
 
 ### TODO perhaps optimize the tool configurations
 [tool.mypy]
@@ -98,7 +97,7 @@ exclude = "venv"
 [tool.black]
 # Use the more relaxed max line length permitted in PEP8.
 line-length = 120
-target-version = ["py36", "py37", "py38", "py39"]
+target-version = ["py38", "py39", "py310", "py311"]
 # black will automatically exclude all files listed in .gitignore
 # If you need to exclude additional folders, consider using extend-exclude to avoid disabling the
 # default .gitignore behaviour.