se adiciona pruebas de python 3.9 y 3.10 en tox

FossilOrigin-Name: 9f144ac3bbaf83e41d086a116d75aa0445add612a4631bfc828bb5161324576d

Dockerfile

@@ -2,15 +2,23 @@
 FROM ubuntu:18.04
 
 RUN apt-get -qq update
+
+RUN apt install software-properties-common -y \
+    && add-apt-repository ppa:deadsnakes/ppa
+
 RUN apt-get install -y --no-install-recommends \
   python3.7 python3.7-distutils python3.7-dev \
   python3.8 python3.8-distutils python3.8-dev \
+  python3.9 python3.9-distutils python3.9-dev \
+  python3.10 python3.10-distutils python3.10-dev \
   wget \
   ca-certificates
 
 RUN wget https://bootstrap.pypa.io/get-pip.py \
-  && python3.7 get-pip.py pip==21.3 \
+  && python3.7 get-pip.py pip==22.2.2 \
-  && python3.8 get-pip.py pip==21.3 \
+  && python3.8 get-pip.py pip==22.2.2 \
+  && python3.9 get-pip.py pip==22.2.2 \
+  && python3.10 get-pip.py pip==22.2.2 \
   && rm get-pip.py
 
 RUN apt-get install -y --no-install-recommends \
@@ -21,8 +29,12 @@ RUN apt-get install -y --no-install-recommends \
 
 RUN python3.7 --version
 RUN python3.8 --version
+RUN python3.9 --version
+RUN python3.10 --version
 
 RUN pip3.7 install setuptools setuptools-rust
 RUN pip3.8 install setuptools setuptools-rust
+RUN pip3.9 install setuptools setuptools-rust
+RUN pip3.10 install setuptools setuptools-rust
 
 RUN pip3 install tox pytest

tox.ini

@@ -1,10 +1,12 @@
 [tox]
-envlist = py37, py38
+envlist = py37, py38, py39, py310
 
 [travis]
 python =
     3.7: py37
     3.8: py38
+    3.9: py39
+    3.10: py310
 
 [testenv]
 setenv =