Add support for Python 3.10

Dockerfile.testing

@@ -18,12 +18,19 @@ FROM python:3.9 AS py39
 
 RUN echo "${PYTHON_VERSION}" > /tmp/py39-latest
 
+##------------------------------------------------------------------------------
+FROM python:3.10 AS py310
+
+RUN echo "${PYTHON_VERSION}" > /tmp/py310-latest
+
 ##------------------------------------------------------------------------------
 FROM centos:7 AS base
 
+# EPEL needed for openssl 1.1.x
 RUN yum clean all \
  && yum update -y \
  && yum install -y \
+        epel-release \
         nmap-ncat \
         unixODBC \
  && yum clean all \
@@ -42,6 +49,15 @@ RUN yum-builddep -y python3
 RUN yum install -y \
         unixODBC-devel
 
+# Python >= 3.10 needs openssl 1.1.x
+RUN yum install -y \
+        openssl11-devel
+
+RUN mkdir /usr/local/openssl11 \
+ && cd /usr/local/openssl11 \
+ && ln -s /usr/lib64/openssl11 lib \
+ && ln -s /usr/include/openssl11 include
+
 RUN mkdir /src
 
 ##------------------------------------------------------------------------------
@@ -61,7 +77,7 @@ RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
 
 RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
  && cd "/tmp/Python-${PYTHON_VERSION}" \
- && ./configure --prefix=/opt/py${py_ver} \
+ && ./configure --prefix=/opt/py${py_ver} --with-openssl=/usr/local/openssl11 \
  && make install
 
 USER root
@@ -94,7 +110,7 @@ RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
 
 RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
  && cd "/tmp/Python-${PYTHON_VERSION}" \
- && ./configure --prefix=/opt/py${py_ver} \
+ && ./configure --prefix=/opt/py${py_ver} --with-openssl=/usr/local/openssl11 \
  && make install
 
 USER root
@@ -127,7 +143,40 @@ RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
 
 RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
  && cd "/tmp/Python-${PYTHON_VERSION}" \
- && ./configure --prefix=/opt/py${py_ver} \
+ && ./configure --prefix=/opt/py${py_ver} --with-openssl=/usr/local/openssl11 \
+ && make install
+
+USER root
+ENV PATH=/opt/py${py_ver}/bin:"${PATH}"
+RUN pip3 install tox
+USER ${nonroot_uid}
+
+ENV HOME=/src
+ENV PATH=/opt/py${py_ver}/bin:"${PATH}"
+WORKDIR /src
+
+ADD django_informixdb/ /src/django_informixdb/
+ADD README.rst setup.* tox.ini /src/
+RUN tox -e "$(tox --listenvs | grep py${py_ver} | tr '\n' ',')" --notest  # prep venvs
+
+##------------------------------------------------------------------------------
+FROM builder-base AS builder-py310
+ARG py_ver=310
+ARG nonroot_uid
+COPY --from=py310 /tmp/py${py_ver}-latest /tmp/
+
+RUN mkdir /opt/py${py_ver} && chown -R ${nonroot_uid} /opt/py${py_ver} /src
+USER ${nonroot_uid}
+WORKDIR /tmp
+
+RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
+ && curl --silent --show-error --fail --location \
+        "https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tgz" \
+    | tar -xz
+
+RUN export PYTHON_VERSION="$(cat /tmp/py${py_ver}-latest)" \
+ && cd "/tmp/Python-${PYTHON_VERSION}" \
+ && ./configure --prefix=/opt/py${py_ver} --with-openssl=/usr/local/openssl11 \
  && make install
 
 USER root
@@ -167,6 +216,10 @@ COPY --from=builder-py39 /opt/py39/ /opt/py39/
 COPY --from=builder-py39 /src/.tox/ /src/.tox/
 COPY --from=builder-py39 /src/.cache/ /src/.cache/
 
+COPY --from=builder-py310 /opt/py310/ /opt/py310/
+COPY --from=builder-py310 /src/.tox/ /src/.tox/
+COPY --from=builder-py310 /src/.cache/ /src/.cache/
+
 ADD wait-for-deps.sh /usr/local/bin
 RUN chmod a+rx /usr/local/bin/wait-for-deps.sh
 
@@ -175,7 +228,7 @@ ADD --chown=${nonroot_uid} django_informixdb/ /src/django_informixdb/
 ADD --chown=${nonroot_uid} test/ /src/test/
 RUN chown ${nonroot_uid} /src
 
-ENV PATH=/opt/py39/bin:/opt/py38/bin:/opt/py37/bin:"${PATH}"
+ENV PATH=/opt/py310/bin:/opt/py39/bin:/opt/py38/bin:/opt/py37/bin:"${PATH}"
 RUN pip3 --no-cache-dir install tox
 
 USER ${nonroot_uid}

README.rst

@@ -307,6 +307,10 @@ Requirements: Docker 19.03.2 or newer and Docker Compose 1.24.1 or newer.
 Release History
 ---------------
 
+Version 1.11.2
+
+- Begin support for Python 3.10
+
 Version 1.11.1
 
 - Convert from TravisCI to GitHub Actions

setup.py

@@ -41,6 +41,7 @@
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
     ],
     keywords='django informix',
     packages=find_packages(exclude=['contrib', 'docs', 'tests']),

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py37-dj3,py38-dj3,py39-dj3,py38-dj4,py39-dj4
+envlist = py37-dj3,py38-dj3,py39-dj3,py310-dj3,py38-dj4,py39-dj4,py310-dj4
 
 [testenv]
 deps =