Issue #62: Update Python=3.10 in tox.ini.

tox.ini

@@ -1,15 +1,14 @@
 # content of: tox.ini , put in same dir as setup.py
 [tox]
-envlist = py37,lint
+envlist = test,lint
 skipsdist = True
-requires = setuptools >= 47.1
-
-[travis]
-python =
-  3.7: py37, docs, lint
 
 [testenv]
+basepython=python3.10
+passenv = *
 deps=-rrequirements-dev.txt
+
+[testenv:test]
 whitelist_externals=coverage,pip
 commands_pre=ipython kernel install --user --name=sksurgerycalibration
 # See .coveragerc for list of omitted files
@@ -18,23 +17,8 @@ commands = coverage erase
            coverage report -m
 
 [testenv:lint]
-basepython=python3.7
-deps=pylint
-     {[testenv]deps}
 commands=pylint --rcfile=tests/pylintrc sksurgerycalibration tests
 
 [testenv:docs]
-basepython=python3.7
 changedir = docs
 commands = sphinx-build -M html . build
-
-[testenv:installer]
-basepython=python3.7
-commands=pyinstaller --onefile sksurgerycalibration.py --noconfirm --windowed
-
-[testenv:pip3]
-basepython=python3.7
-changedir=pip_test
-skip_install=True
-commands = pip install {posargs}
-           sksurgerycalibration --help