1.4.2 - add support for python3.8

Makefile

@@ -1,48 +1,55 @@
+PYTHON := python
 project:=pprintjson
-version:=$(shell python -c 'import sys, os; sys.path.insert(0, os.path.abspath(".")); print(__import__("${project}").__version__)')
+version:=$(shell $(PYTHON) -c 'import sys, os; sys.path.insert(0, os.path.abspath(".")); print(__import__("${project}").__version__)')
 
 .PHONY: list
 list help:
 	@make -pq | awk -F':' '/^[a-zA-Z0-9][^$$#\/\t=]*:([^=]|$$)/ {split($$1,A,/ /);for(i in A)print A[i]}' | sed '/Makefile/d' | sort
 
 .PHONY: format
 format:
-	python -m black .
+	@$(PYTHON) -m black *.py ./pprintjson/*.py
 
 .PHONY: build
 build: clean
-	rm -rf ./dist/*
-	python3 setup.py sdist bdist_wheel
+	@rm -rf ./dist/*
+	@$(PYTHON) setup.py sdist bdist_wheel
+
+.PHONY: test-setup
+test-setup:
+	@pyenv install -s 3.6.10
+	@pyenv install -s 3.7.7
+	@pyenv install -s 3.8.2
 
 .PHONY: test
-test:
-	pyenv local 3.5.6 3.6.8 system
-	python -m tox
+test: test-setup
+	@pyenv local 3.6.10 3.7.7 3.8.2
+	@$(PYTHON) -m tox
 
 .PHONY: clean
 clean:
-	rm -rf ./dist ./build ./*.egg-info ./htmlcov
-	find . -name '*.pyc' -delete
-	find . -name '__pycache__' -delete
+	@rm -rf ./dist ./build ./*.egg-info ./htmlcov
+	@find . -name '*.pyc' -delete
+	@find . -name '__pycache__' -delete
 
 .PHONY: check
 check:
-	twine check dist/*
+	@twine check dist/*
 
 .PHONY: upload-test
 upload-test: test clean build check
-	twine upload --repository-url https://test.pypi.org/legacy/ dist/*
+	@twine upload --repository-url https://test.pypi.org/legacy/ dist/*
 
 .PHONY: tag
 tag:
 ifeq (,$(shell git tag --list | grep "${version}"))
-	git tag "v${version}"
+	@git tag "v${version}"
 endif
 
 .PHONY: release
 release: tag
 ifdef version
-	curl -XPOST \
+	@curl -XPOST \
 	-H "Authorization: token ${GITHUB_ACCESS_TOKEN}" \
 	-H "Content-Type: application/json" \
 	"https://api.github.com/repos/clarketm/${project}/releases" \
@@ -51,5 +58,4 @@ endif
 
 .PHONY: upload
 publish upload: test clean build check
-	twine upload dist/*
-
+	@twine upload dist/*

docs/source/index.md

@@ -25,10 +25,17 @@ Version |version|
 
 ## Installation
 
+Install with the standard [`json`](https://docs.python.org/3/library/json.html) JSON encoder
+
 ```bash
 $ pip install pprintjson
 ```
 
+Install with the premier [`simplejson`](https://simplejson.readthedocs.io/en/latest/) JSON encoder
+```bash
+$ pip install pprintjson[simplejson]
+```
+
 ## Usage
 
 ```text
@@ -44,7 +51,7 @@ optional arguments:
   -h, --help              show this help message and exit
   -i num, --indent num    indent <num> number of spaces at each level (default: 4)
   -o file, --output file  write output to <file> instead of stdout (default: stdout)
-  -c cmd, --command cmd   json <str> to pretty-print
+  -c cmd, --command cmd   json <cmd> to pretty-print
   -v, --version           show program's version number and exit
 
 ```
@@ -57,6 +64,12 @@ Pretty print JSON from a **file** using the `pprintjson` CLI.
 $ pprintjson "./path/to/file.json"
 ```
 
+Pretty print JSON from a **stdin** using the `pprintjson` CLI.
+
+```bash
+$ echo '{ "a": 1, "b": "string", "c": true }' | pprintjson
+```
+
 Pretty print JSON from a **string** using the `pprintjson` CLI.
 
 ```bash