f981682bdc
Currently Spack vendors `pytest` at a version which is three major versions behind the latest (3.2.5 vs. 6.2.4). We do that since v3.2.5 is the latest version supporting Python 2.6. Remaining so much behind the currently supported versions though might introduce some incompatibilities and is surely a technical debt. This PR modifies Spack to: - Use the vendored `pytest@3.2.5` only as a fallback solution, if the Python interpreter used for Spack doesn't provide a newer one - Be able to parse `pytest --collect-only` in all the different output formats from v3.2.5 to v6.2.4 and use it consistently for `spack unit-test --list-*` - Updating the unit tests in Github Actions to use a more recent `pytest` version
80 lines
2.7 KiB
Python
80 lines
2.7 KiB
Python
# copied from python-2.7.3's traceback.py
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# CHANGES:
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# - some_str is replaced, trying to create unicode strings
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#
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import types
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def format_exception_only(etype, value):
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"""Format the exception part of a traceback.
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The arguments are the exception type and value such as given by
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sys.last_type and sys.last_value. The return value is a list of
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strings, each ending in a newline.
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Normally, the list contains a single string; however, for
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SyntaxError exceptions, it contains several lines that (when
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printed) display detailed information about where the syntax
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error occurred.
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The message indicating which exception occurred is always the last
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string in the list.
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"""
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# An instance should not have a meaningful value parameter, but
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# sometimes does, particularly for string exceptions, such as
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# >>> raise string1, string2 # deprecated
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#
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# Clear these out first because issubtype(string1, SyntaxError)
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# would throw another exception and mask the original problem.
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if (isinstance(etype, BaseException) or
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isinstance(etype, types.InstanceType) or
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etype is None or type(etype) is str):
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return [_format_final_exc_line(etype, value)]
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stype = etype.__name__
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if not issubclass(etype, SyntaxError):
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return [_format_final_exc_line(stype, value)]
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# It was a syntax error; show exactly where the problem was found.
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lines = []
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try:
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msg, (filename, lineno, offset, badline) = value.args
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except Exception:
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pass
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else:
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filename = filename or "<string>"
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lines.append(' File "%s", line %d\n' % (filename, lineno))
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if badline is not None:
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lines.append(' %s\n' % badline.strip())
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if offset is not None:
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caretspace = badline.rstrip('\n')[:offset].lstrip()
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# non-space whitespace (likes tabs) must be kept for alignment
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caretspace = ((c.isspace() and c or ' ') for c in caretspace)
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# only three spaces to account for offset1 == pos 0
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lines.append(' %s^\n' % ''.join(caretspace))
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value = msg
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lines.append(_format_final_exc_line(stype, value))
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return lines
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def _format_final_exc_line(etype, value):
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"""Return a list of a single line -- normal case for format_exception_only"""
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valuestr = _some_str(value)
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if value is None or not valuestr:
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line = "%s\n" % etype
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else:
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line = "%s: %s\n" % (etype, valuestr)
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return line
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def _some_str(value):
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try:
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return unicode(value)
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except Exception:
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try:
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return str(value)
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except Exception:
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pass
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return '<unprintable %s object>' % type(value).__name__
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