📄 debugerror.py
字号:
"""pretty debug errors(part of web.py)adapted from Django <djangoproject.com> Copyright (c) 2005, the Lawrence Journal-WorldUsed under the modified BSD license:http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5"""__all__ = ["debugerror", "djangoerror"]import sys, urlparse, pprintfrom net import websafefrom template import Templateimport webapi as webimport os, os.pathwhereami = os.path.join(os.getcwd(), __file__)whereami = os.path.sep.join(whereami.split(os.path.sep)[:-1])djangoerror_t = """\$def with (exception_type, exception_value, frames)<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html lang="en"><head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <meta name="robots" content="NONE,NOARCHIVE" /> <title>$exception_type at $ctx.path</title> <style type="text/css"> html * { padding:0; margin:0; } body * { padding:10px 20px; } body * * { padding:0; } body { font:small sans-serif; } body>div { border-bottom:1px solid #ddd; } h1 { font-weight:normal; } h2 { margin-bottom:.8em; } h2 span { font-size:80%; color:#666; font-weight:normal; } h3 { margin:1em 0 .5em 0; } h4 { margin:0 0 .5em 0; font-weight: normal; } table { border:1px solid #ccc; border-collapse: collapse; background:white; } tbody td, tbody th { vertical-align:top; padding:2px 3px; } thead th { padding:1px 6px 1px 3px; background:#fefefe; text-align:left; font-weight:normal; font-size:11px; border:1px solid #ddd; } tbody th { text-align:right; color:#666; padding-right:.5em; } table.vars { margin:5px 0 2px 40px; } table.vars td, table.req td { font-family:monospace; } table td.code { width:100%;} table td.code div { overflow:hidden; } table.source th { color:#666; } table.source td { font-family:monospace; white-space:pre; border-bottom:1px solid #eee; } ul.traceback { list-style-type:none; } ul.traceback li.frame { margin-bottom:1em; } div.context { margin: 10px 0; } div.context ol { padding-left:30px; margin:0 10px; list-style-position: inside; } div.context ol li { font-family:monospace; white-space:pre; color:#666; cursor:pointer; } div.context ol.context-line li { color:black; background-color:#ccc; } div.context ol.context-line li span { float: right; } div.commands { margin-left: 40px; } div.commands a { color:black; text-decoration:none; } #summary { background: #ffc; } #summary h2 { font-weight: normal; color: #666; } #explanation { background:#eee; } #template, #template-not-exist { background:#f6f6f6; } #template-not-exist ul { margin: 0 0 0 20px; } #traceback { background:#eee; } #requestinfo { background:#f6f6f6; padding-left:120px; } #summary table { border:none; background:transparent; } #requestinfo h2, #requestinfo h3 { position:relative; margin-left:-100px; } #requestinfo h3 { margin-bottom:-1em; } .error { background: #ffc; } .specific { color:#cc3300; font-weight:bold; } </style> <script type="text/javascript"> //<!-- function getElementsByClassName(oElm, strTagName, strClassName){ // Written by Jonathan Snook, http://www.snook.ca/jon; // Add-ons by Robert Nyman, http://www.robertnyman.com var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName); var arrReturnElements = new Array(); strClassName = strClassName.replace(/\-/g, "\\-"); var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)"); var oElement; for(var i=0; i<arrElements.length; i++){ oElement = arrElements[i]; if(oRegExp.test(oElement.className)){ arrReturnElements.push(oElement); } } return (arrReturnElements) } function hideAll(elems) { for (var e = 0; e < elems.length; e++) { elems[e].style.display = 'none'; } } window.onload = function() { hideAll(getElementsByClassName(document, 'table', 'vars')); hideAll(getElementsByClassName(document, 'ol', 'pre-context')); hideAll(getElementsByClassName(document, 'ol', 'post-context')); } function toggle() { for (var i = 0; i < arguments.length; i++) { var e = document.getElementById(arguments[i]); if (e) { e.style.display = e.style.display == 'none' ? 'block' : 'none'; } } return false; } function varToggle(link, id) { toggle('v' + id); var s = link.getElementsByTagName('span')[0]; var uarr = String.fromCharCode(0x25b6); var darr = String.fromCharCode(0x25bc); s.innerHTML = s.innerHTML == uarr ? darr : uarr; return false; } //--> </script></head><body><div id="summary"> <h1>$exception_type at $ctx.path</h1> <h2>$exception_value</h2> <table><tr> <th>Python</th> <td>$frames[0].filename in $frames[0].function, line $frames[0].lineno</td> </tr><tr> <th>Web</th> <td>$ctx.method $ctx.home$ctx.path</td> </tr></table></div><div id="traceback"><h2>Traceback <span>(innermost first)</span></h2><ul class="traceback">$for frame in frames: <li class="frame"> <code>$frame.filename</code> in <code>$frame.function</code> $if frame.context_line: <div class="context" id="c$frame.id"> $if frame.pre_context: <ol start="$frame.pre_context_lineno" class="pre-context" id="pre$frame.id"> $for line in frame.pre_context: <li onclick="toggle('pre$frame.id', 'post$frame.id')">$line</li> </ol> <ol start="$frame.lineno" class="context-line"><li onclick="toggle('pre$frame.id', 'post$frame.id')">$frame.context_line <span>...</span></li></ol> $if frame.post_context: <ol start='${frame.lineno + 1}' class="post-context" id="post$frame.id"> $for line in frame.post_context: <li onclick="toggle('pre$frame.id', 'post$frame.id')">$line</li> </ol> </div> $if frame.vars: <div class="commands"> <a href='#' onclick="return varToggle(this, '$frame.id')"><span>▶</span> Local vars</a> $# $inspect.formatargvalues(*inspect.getargvalues(frame['tb'].tb_frame)) </div> $:dicttable(frame.vars, kls='vars', id=('v' + str(frame.id))) </li> </ul></div><div id="requestinfo">$if ctx.output or ctx.headers: <h2>Response so far</h2> <h3>HEADERS</h3> <p class="req"><code> $for kv in ctx.headers: $kv[0]: $kv[1]<br /> $else: [no headers] </code></p> <h3>BODY</h3> <p class="req" style="padding-bottom: 2em"><code> $ctx.output </code></p> <h2>Request information</h2><h3>INPUT</h3>$:dicttable(web.input())<h3 id="cookie-info">COOKIES</h3>$:dicttable(web.cookies())<h3 id="meta-info">META</h3>$ newctx = []$# ) and (k not in ['env', 'output', 'headers', 'environ', 'status', 'db_execute']):$for k, v in ctx.iteritems(): $if not k.startswith('_') and (k in x): $newctx.append(kv)$:dicttable(dict(newctx))<h3 id="meta-info">ENVIRONMENT</h3>$:dicttable(ctx.env)</div><div id="explanation"> <p> You're seeing this error because you have <code>web.internalerror</code> set to <code>web.debugerror</code>. Change that if you want a different one. </p></div></body></html>"""dicttable_t = r"""$def with (d, kls='req', id=None)$if d: <table class="$kls"\ $if id: id="$id"\ ><thead><tr><th>Variable</th><th>Value</th></tr></thead> <tbody> $ temp = d.items() $temp.sort() $for kv in temp: <tr><td>$kv[0]</td><td class="code"><div>$prettify(kv[1])</div></td></tr> </tbody> </table>$else: <p>No data.</p>"""dicttable_r = Template(dicttable_t, filter=websafe)djangoerror_r = Template(djangoerror_t, filter=websafe)def djangoerror(): def _get_lines_from_file(filename, lineno, context_lines): """ Returns context_lines before and after lineno from file. Returns (pre_context_lineno, pre_context, context_line, post_context). """ try: source = open(filename).readlines() lower_bound = max(0, lineno - context_lines) upper_bound = lineno + context_lines pre_context = \ [line.strip('\n') for line in source[lower_bound:lineno]] context_line = source[lineno].strip('\n') post_context = \ [line.strip('\n') for line in source[lineno + 1:upper_bound]] return lower_bound, pre_context, context_line, post_context except (OSError, IOError): return None, [], None, [] exception_type, exception_value, tback = sys.exc_info() frames = [] while tback is not None: filename = tback.tb_frame.f_code.co_filename function = tback.tb_frame.f_code.co_name lineno = tback.tb_lineno - 1 pre_context_lineno, pre_context, context_line, post_context = \ _get_lines_from_file(filename, lineno, 7) frames.append(web.storage({ 'tback': tback, 'filename': filename, 'function': function, 'lineno': lineno, 'vars': tback.tb_frame.f_locals, 'id': id(tback), 'pre_context': pre_context, 'context_line': context_line, 'post_context': post_context, 'pre_context_lineno': pre_context_lineno, })) tback = tback.tb_next frames.reverse() urljoin = urlparse.urljoin def prettify(x): try: out = pprint.pformat(x) except Exception, e: out = '[could not display: <' + e.__class__.__name__ + \ ': '+str(e)+'>]' return out dt = dicttable_r dt.globals = {'prettify': prettify} t = djangoerror_r t.globals = {'ctx': web.ctx, 'web':web, 'dicttable':dt, 'dict':dict, 'str':str} return t(exception_type, exception_value, frames)def debugerror(): """ A replacement for `internalerror` that presents a nice page with lots of debug information for the programmer. (Based on the beautiful 500 page from [Django](http://djangoproject.com/), designed by [Wilson Miner](http://wilsonminer.com/).) """ web.ctx.headers = [('Content-Type', 'text/html')] web.ctx.output = djangoerror()if __name__ == "__main__": urls = ( '/', 'index' ) class index: def GET(self): thisdoesnotexist web.internalerror = web.debugerror web.run(urls)⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -