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chameleon benchmark fails on the master branch of Python #47

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chameleon benchmark fails on the master branch of Python#47
@vstinner

Description

@vstinner
vstinner
opened on Oct 17, 2018

performance 0.7.0 fails on the master branch of Python (future Python 3.8), because Chameleon has no handler for AST node type ast.Constant.

performance 0.7.0 uses Chameleon 3.4. I see two options:

  • Disable/remove the benchmark
  • Fix Chameleon, wait for a new release, upgrade Chameleon in performance

Chameleon project homepage: https://github.com/malthe/chameleon/

cc @serhiy-storchaka @methane

Full traceback:

2018-10-16 15:28:43,656: [ 2/47] chameleon...
2018-10-16 15:28:43,656: INFO:root:Running `/home/haypo/bench_tmpdir/venv/bin/python -u /home/haypo/performance/performance/benchmarks/bm_chameleon.py --verbose --output /tmp/tmp85spznrk`
2018-10-16 15:28:43,842: Traceback (most recent call last):
2018-10-16 15:28:43,842:   File "/home/haypo/performance/performance/benchmarks/bm_chameleon.py", line 36, in <module>
2018-10-16 15:28:43,843:     main()
2018-10-16 15:28:43,843:   File "/home/haypo/performance/performance/benchmarks/bm_chameleon.py", line 26, in main
2018-10-16 15:28:43,843:     tmpl = PageTemplate(BIGTABLE_ZPT)
2018-10-16 15:28:43,843:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/zpt/template.py", line 192, in __init__
2018-10-16 15:28:43,843:     super(PageTemplate, self).__init__(body, **config)
2018-10-16 15:28:43,843:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/template.py", line 128, in __init__
2018-10-16 15:28:43,843:     self.write(body)
2018-10-16 15:28:43,843:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/template.py", line 221, in write
2018-10-16 15:28:43,843:     self.cook(body)
2018-10-16 15:28:43,843:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/template.py", line 158, in cook
2018-10-16 15:28:43,843:     program = self._cook(body, digest, names)
2018-10-16 15:28:43,843:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/template.py", line 231, in _cook
2018-10-16 15:28:43,844:     source = self._compile(body, builtins)
2018-10-16 15:28:43,844:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/template.py", line 265, in _compile
2018-10-16 15:28:43,844:     compiler = Compiler(
2018-10-16 15:28:43,844:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/compiler.py", line 949, in __init__
2018-10-16 15:28:43,844:     generator = TemplateCodeGenerator(module, source)
2018-10-16 15:28:43,844:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/codegen.py", line 116, in __init__
2018-10-16 15:28:43,844:     super(TemplateCodeGenerator, self).__init__(tree)
2018-10-16 15:28:43,844:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 226, in __init__
2018-10-16 15:28:43,844:     self.visit(tree)
2018-10-16 15:28:43,844:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/codegen.py", line 201, in visit
2018-10-16 15:28:43,844:     super(TemplateCodeGenerator, self).visit(node)
2018-10-16 15:28:43,845:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 286, in visit
2018-10-16 15:28:43,845:     ret = visitor(node)
2018-10-16 15:28:43,845:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/codegen.py", line 119, in visit_Module
2018-10-16 15:28:43,845:     super(TemplateCodeGenerator, self).visit_Module(node)
2018-10-16 15:28:43,845:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 293, in visit_Module
2018-10-16 15:28:43,845:     self.visit(n)
2018-10-16 15:28:43,845:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/codegen.py", line 201, in visit
2018-10-16 15:28:43,845:     super(TemplateCodeGenerator, self).visit(node)
2018-10-16 15:28:43,845:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 286, in visit
2018-10-16 15:28:43,845:     ret = visitor(node)
2018-10-16 15:28:43,845:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 387, in visit_Assign
2018-10-16 15:28:43,846:     self.visit(node.value)
2018-10-16 15:28:43,846:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/codegen.py", line 201, in visit
2018-10-16 15:28:43,846:     super(TemplateCodeGenerator, self).visit(node)
2018-10-16 15:28:43,846:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 286, in visit
2018-10-16 15:28:43,846:     ret = visitor(node)
2018-10-16 15:28:43,846:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 829, in visit_Call
2018-10-16 15:28:43,846:     self.visit(arg)
2018-10-16 15:28:43,846:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/codegen.py", line 201, in visit
2018-10-16 15:28:43,846:     super(TemplateCodeGenerator, self).visit(node)
2018-10-16 15:28:43,846:   File "/home/haypo/bench_tmpdir/venv/lib/python3.8/site-packages/chameleon/astutil.py", line 284, in visit
2018-10-16 15:28:43,846:     raise Exception('No handler for ``%s`` (%s).' % (
2018-10-16 15:28:43,846: Exception: No handler for ``Constant`` (<_ast.Constant object at 0x7f42c52f8b80>).
2018-10-16 15:28:43,859: ERROR: Benchmark chameleon failed: Benchmark died

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