id	summary	reporter	owner	description	type	status	priority	component	severity	resolution	keywords	cc	release
9066	TypeError: execv() argument 1 must be encoded string without NULL bytes, not str	anonymous	kisielk	my Trac version is 0.12b1 and I use the version [https://bitbucket.org/kisielk/tracmathplugin/get/3400be420ed8.tar.gz https://bitbucket.org/kisielk/tracmathplugin/get/3400be420ed8.tar.gz ] as the solution of the 'show_err' error mentioned in the [ticket:8557 ticket 8557].\r\n\r\nbut there comes the error message \r\n{{{\r\nTrac detected an internal error: \r\nTypeError: execv() argument 1 must be (encoded string without NULL bytes), not str\r\n}}}\r\nmy Python Traceback\r\n{{{\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/templates/wiki_view.html", line 58, in <Expression u'wiki_to_html(context, text)'>\r\n  <div id="wikipage" py:content="wiki_to_html(context, text)" />\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/util/compat.py", line 83, in newfunc\r\n  return func_(*(args + fargs), **dict(kwargs, **fkwargs))\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/formatter.py", line 1494, in format_to_html\r\n  return HtmlFormatter(env, context, wikidom).generate(escape_newlines)\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/formatter.py", line 1449, in generate\r\n  escape_newlines)\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/formatter.py", line 1191, in format\r\n  self.handle_code_block(line, block_start_match)\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/formatter.py", line 1086, in handle_code_block\r\n  processed = self.code_processor.process(code_text)\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/formatter.py", line 304, in process\r\n  text = self.processor(text)\r\nFile "/usr/lib/python2.4/site-packages/Trac-0.12b1-py2.4.egg/trac/wiki/formatter.py", line 291, in _macro_processor\r\n  text)\r\nFile "build/bdist.linux-i686/egg/tracmath/tracmath.py", line 89, in expand_macroFile "build/bdist.linux-i686/egg/tracmath/tracmath.py", line 153, in _internal_renderFile "/usr/lib/python2.4/subprocess.py", line 550, in __init__\r\n  errread, errwrite)\r\nFile "/usr/lib/python2.4/subprocess.py", line 996, in _execute_child\r\n  raise child_exception\r\n\r\n}}}\r\n\r\nhow can I solve the problem?\r\n\r\nregards	defect	closed	normal	TracMathPlugin	normal	fixed	TypeError: execv()		0.12