Fix tox error running hdfsIntegrationTest

sdks/python/tox.ini

@@ -17,7 +17,7 @@
 
 [tox]
 # new environments will be excluded by default unless explicitly added to envlist.
-envlist = py37,py38,py39,py310,py37-{cloud,cython,lint,mypy,dask},py38-{cloud,cython,docs,cloudcoverage,dask, onnx-113},py39-{cloud,cython},py310-{cloud,cython,dask},whitespacelint
+envlist = py37,py38,py39,py310,py37-{cloud,cython,lint,mypy,dask},py38-{cloud,cython,docs,cloudcoverage,dask},py39-{cloud,cython},py310-{cloud,cython,dask},whitespacelint
 toxworkdir = {toxinidir}/target/{env:ENV_NAME:.tox}
 
 [pycodestyle]
@@ -323,7 +323,10 @@ commands =
   # Allow exit code 5 (no tests run) so that we can run this command safely on arbitrary subdirectories.
   /bin/sh -c 'pytest -o junit_suite_name={envname} --junitxml=pytest_{envname}.xml -n 6 -m uses_pytorch {posargs}; ret=$?; [ $ret = 5 ] && exit 0 || exit $ret'
 
-[testenv:py{38}-onnx-{113}]
+[testenv:py{37,38,39,310}-onnx-113]
+# TODO(https://github.com/apache/beam/issues/25443)
+# apparently tox has problem when substitution key has single value. Change back to -onnx-{113,...}
+# when multiple onnx versions are tested.
 deps =
   onnxruntime==1.13.1
   pandas==1.5.2
@@ -338,4 +341,3 @@ commands =
   /bin/sh -c "pip freeze | grep -E onnx"
   # Run all ONNX unit tests
   pytest -o junit_suite_name={envname} --junitxml=pytest_{envname}.xml -n 6 -m uses_onnx {posargs}
-