feat: Update dev tools to latest versions

- poetry to 1.1.6
- pip to 21.1.1
- pre-commit to 2.12.1
- tox to 3.23.0
- virtualenv to 20.4.4

Author: playpauseandstop

CHANGELOG.md

@@ -1,10 +1,15 @@
 # 4.2.0 (In Development)
 
-- Update `py39` image to Python 3.9.2
-- Update pip to 21.0.1
-- Update pre-commit to 20.10.1
-- Update tox to 3.22.0
-- Update virtualenv to 20.4.2
+- Update `py39` image to Python 3.9.4
+- Update `py38` image to Python 3.8.9
+- Update `py37` image to Python 3.7.10
+- Update `py36` image to Python 3.6.13
+- Update poetry to 1.1.6
+- Install poetry in different Docker layer (`poetry-base`)
+- Update pip to 21.1.1
+- Update pre-commit to 2.12.1
+- Update tox to 3.23.0
+- Update virtualenv to 20.4.4
 
 # 4.1.0 (2021-01-05)
 

Dockerfile

@@ -15,7 +15,7 @@ ENV PATH "${POETRY_HOME}/bin:${PATH}"
 # Install poetry at one stage
 FROM python-base as poetry-base
 
-ENV POETRY_VERSION "1.1.4"
+ENV POETRY_VERSION "1.1.6"
 RUN apt install -y build-essential curl
 RUN curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python
 RUN poetry --version
@@ -43,10 +43,10 @@ RUN apt install -y ${ADDITIONAL_APPS} && apt autoremove -y
 # ```bash
 # pip-latest-release pip pre-commit tox virtualenv
 # ```
-ENV PIP_VERSION "21.0.1"
-ENV PRE_COMMIT_VERSION "2.10.1"
-ENV TOX_VERSION "3.22.0"
-ENV VIRTUALENV_VERSION "20.4.2"
+ENV PIP_VERSION "21.1.1"
+ENV PRE_COMMIT_VERSION "2.12.1"
+ENV TOX_VERSION "3.23.0"
+ENV VIRTUALENV_VERSION "20.4.4"
 
 RUN pip install \
     pip==${PIP_VERSION} \

README.md

@@ -9,16 +9,16 @@ image.
 ## Usage
 
 ```dockerfile
-FROM playpauseandstop/docker-python:4.1.0
+FROM playpauseandstop/docker-python:4.2.0
 ```
 
 ### Included dev-tools
 
-- [pip](https://pip.pypa.io) 21.0.1
-- [poetry](https://python-poetry.org) 1.1.4
-- [pre-commit](https://pre-commit.com) 2.10.1
-- [tox](https://tox.readthedocs.io/) 3.22.0
-- [virtualenv](https://virtualenv.pypa.io) 20.4.2
+- [pip](https://pip.pypa.io) 21.1.1
+- [poetry](https://python-poetry.org) 1.1.6
+- [pre-commit](https://pre-commit.com) 2.12.1
+- [tox](https://tox.readthedocs.io/) 3.23.0
+- [virtualenv](https://virtualenv.pypa.io) 20.4.4
 - [curl](https://curl.haxx.se) 7.64.0
 - [gcc & g++](https://gcc.gnu.org) 8.3.0
 - [git](https://git-scm.com) 2.20.1
@@ -37,6 +37,13 @@ other versions supported as well.
 
 List of supported Python versions are (`<PY_VERSION>` -> base Docker image):
 
+#### 4.2.0
+
+- `py39` -> `python:3.9.4-slim-buster`
+- `py38` -> `python:3.8.9-slim-buster`
+- `py37` -> `python:3.7.10-slim-buster`
+- `py36` -> `python:3.6.13-slim-buster`
+
 #### 4.1.0
 
 - `py39` -> `python:3.9.1-slim-buster`