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  1. # 標準ライブラリ cgitb.pyより抜粋
  2.  
  3. def html(einfo, context=5):
  4.     """Return a nice HTML document describing a given traceback."""
  5.     etype, evalue, etb = einfo
  6.     if isinstance(etype, type):
  7.         etype = etype.__name__
  8.     pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable
  9.     date = time.ctime(time.time())
  10.     head = '<body bgcolor="#f0f0f8">' + pydoc.html.heading(
  11.         '<big><big>%s</big></big>' %
  12.         strong(pydoc.html.escape(str(etype))),
  13.         '#ffffff', '#6622aa', pyver + '<br>' + date) + '''
  14. <p>A problem occurred in a Python script.  Here is the sequence of
  15. function calls leading up to the error, in the order they occurred.</p>'''
  16.  
  17.     indent = '<tt>' + small('&nbsp;' * 5) + '&nbsp;</tt>'
  18.     frames = []
  19.     records = inspect.getinnerframes(etb, context)
  20.     for frame, file, lnum, func, lines, index in records:
  21.         if file:
  22.             file = os.path.abspath(file)
  23.             link = '<a href="file://%s">%s</a>' % (file, pydoc.html.escape(file))
  24.         else:
  25.             file = link = '?'
  26.         args, varargs, varkw, locals = inspect.getargvalues(frame)
  27.         call = ''
  28.         if func != '?':
  29.             call = 'in ' + strong(func) + \
  30.                 inspect.formatargvalues(args, varargs, varkw, locals,
  31.                     formatvalue=lambda value: '=' + pydoc.html.repr(value))
  32.  
  33.         highlight = {}
  34.         def reader(lnum=[lnum]):
  35.             highlight[lnum[0]] = 1
  36.             try: return linecache.getline(file, lnum[0])
  37.             finally: lnum[0] += 1
  38.         vars = scanvars(reader, frame, locals)
  39.  
  40.         rows = ['<tr><td bgcolor="#d8bbff">%s%s %s</td></tr>' %
  41.                 ('<big>&nbsp;</big>', link, call)]
  42.         if index is not None:
  43.             i = lnum - index
  44.             for line in lines:
  45.                 num = small('&nbsp;' * (5-len(str(i))) + str(i)) + '&nbsp;'
  46.                 if i in highlight:
  47.                     line = '<tt>=&gt;%s%s</tt>' % (num, pydoc.html.preformat(line))
  48.                     rows.append('<tr><td bgcolor="#ffccee">%s</td></tr>' % line)
  49.                 else:
  50.                     line = '<tt>&nbsp;&nbsp;%s%s</tt>' % (num, pydoc.html.preformat(line))
  51.                     rows.append('<tr><td>%s</td></tr>' % grey(line))
  52.                 i += 1
  53.  
  54.         done, dump = {}, []
  55.         for name, where, value in vars:
  56.             if name in done: continue
  57.             done[name] = 1
  58.             if value is not __UNDEF__:
  59.                 if where in ('global', 'builtin'):
  60.                     name = ('<em>%s</em> ' % where) + strong(name)
  61.                 elif where == 'local':
  62.                     name = strong(name)
  63.                 else:
  64.                     name = where + strong(name.split('.')[-1])
  65.                 dump.append('%s&nbsp;= %s' % (name, pydoc.html.repr(value)))
  66.             else:
  67.                 dump.append(name + ' <em>undefined</em>')
  68.  
  69.         rows.append('<tr><td>%s</td></tr>' % small(grey(', '.join(dump))))
  70.         frames.append('''
  71. <table width="100%%" cellspacing=0 cellpadding=0 border=0>
  72. %s</table>''' % '\n'.join(rows))
  73.  
  74.     exception = ['<p>%s: %s' % (strong(pydoc.html.escape(str(etype))),
  75.                                 pydoc.html.escape(str(evalue)))]
  76.     for name in dir(evalue):
  77.         if name[:1] == '_': continue
  78.         value = pydoc.html.repr(getattr(evalue, name))
  79.         exception.append('\n<br>%s%s&nbsp;=\n%s' % (indent, name, value))
  80.  
  81.     return head + ''.join(frames) + ''.join(exception) + '''
  82.  
  83.  
  84. <!-- The above is a description of an error in a Python program, formatted
  85.      for a Web browser because the 'cgitb' module was enabled.  In case you
  86.      are not reading this in a Web browser, here is the original traceback:
  87.  
  88. %s
  89. -->
  90. ''' % pydoc.html.escape(
  91.           ''.join(traceback.format_exception(etype, evalue, etb)))
  92.  
Not running #stdin #stdout 0s 0KB
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https://ideone.com/8yjZKZ
language:
Python 3 (python  3.9.5)
created:
10 years ago
visibility:
public

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