diff options
Diffstat (limited to 'Lib/traceback.py')
| -rw-r--r-- | Lib/traceback.py | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/Lib/traceback.py b/Lib/traceback.py index bf34bba..a19e387 100644 --- a/Lib/traceback.py +++ b/Lib/traceback.py @@ -569,23 +569,30 @@ class TracebackException: if not issubclass(self.exc_type, SyntaxError): yield _format_final_exc_line(stype, self._str) - return + else: + yield from self._format_syntax_error(stype) - # It was a syntax error; show exactly where the problem was found. + def _format_syntax_error(self, stype): + """Format SyntaxError exceptions (internal helper).""" + # Show exactly where the problem was found. filename = self.filename or "<string>" lineno = str(self.lineno) or '?' yield ' File "{}", line {}\n'.format(filename, lineno) - badline = self.text - offset = self.offset - if badline is not None: - yield ' {}\n'.format(badline.strip()) - if offset is not None: - caretspace = badline.rstrip('\n') - offset = min(len(caretspace), offset) - 1 - caretspace = caretspace[:offset].lstrip() + text = self.text + if text is not None: + # text = " foo\n" + # rtext = " foo" + # ltext = "foo" + rtext = text.rstrip('\n') + ltext = rtext.lstrip(' \n\f') + spaces = len(rtext) - len(ltext) + yield ' {}\n'.format(ltext) + # Convert 1-based column offset to 0-based index into stripped text + caret = (self.offset or 0) - 1 - spaces + if caret >= 0: # non-space whitespace (likes tabs) must be kept for alignment - caretspace = ((c.isspace() and c or ' ') for c in caretspace) + caretspace = ((c if c.isspace() else ' ') for c in ltext[:caret]) yield ' {}^\n'.format(''.join(caretspace)) msg = self.msg or "<no detail available>" yield "{}: {}\n".format(stype, msg) |