diff options
Diffstat (limited to 'lib/tb.py')
| -rw-r--r-- | lib/tb.py | 360 |
1 files changed, 180 insertions, 180 deletions
@@ -3,11 +3,11 @@ import sys try: - import mac - os = mac + import mac + os = mac except NameError: - import posix - os = posix + import posix + os = posix from stat import * import string @@ -16,205 +16,205 @@ def br(): browser(sys.last_traceback) def tb(): printtb(sys.last_traceback) def browser(tb): - if not tb: - print 'No traceback.' - return - tblist = [] - while tb: - tblist.append(tb) - tb = tb.tb_next - ptr = len(tblist)-1 - tb = tblist[ptr] - while 1: - if tb <> tblist[ptr]: - tb = tblist[ptr] - print `ptr` + ':', - printtbheader(tb) - try: - line = raw_input('TB: ') - except KeyboardInterrupt: - print '\n[Interrupted]' - break - except EOFError: - print '\n[EOF]' - break - cmd = string.strip(line) - if cmd: - if cmd = 'quit': - break - elif cmd = 'list': - browserlist(tb) - elif cmd = 'up': - if ptr-1 >= 0: ptr = ptr-1 - else: print 'Bottom of stack.' - elif cmd = 'down': - if ptr+1 < len(tblist): ptr = ptr+1 - else: print 'Top of stack.' - elif cmd = 'locals': - printsymbols(tb.tb_frame.f_locals) - elif cmd = 'globals': - printsymbols(tb.tb_frame.f_globals) - elif cmd in ('?', 'help'): - browserhelp() - else: - browserexec(tb, cmd) + if not tb: + print 'No traceback.' + return + tblist = [] + while tb: + tblist.append(tb) + tb = tb.tb_next + ptr = len(tblist)-1 + tb = tblist[ptr] + while 1: + if tb <> tblist[ptr]: + tb = tblist[ptr] + print `ptr` + ':', + printtbheader(tb) + try: + line = raw_input('TB: ') + except KeyboardInterrupt: + print '\n[Interrupted]' + break + except EOFError: + print '\n[EOF]' + break + cmd = string.strip(line) + if cmd: + if cmd = 'quit': + break + elif cmd = 'list': + browserlist(tb) + elif cmd = 'up': + if ptr-1 >= 0: ptr = ptr-1 + else: print 'Bottom of stack.' + elif cmd = 'down': + if ptr+1 < len(tblist): ptr = ptr+1 + else: print 'Top of stack.' + elif cmd = 'locals': + printsymbols(tb.tb_frame.f_locals) + elif cmd = 'globals': + printsymbols(tb.tb_frame.f_globals) + elif cmd in ('?', 'help'): + browserhelp() + else: + browserexec(tb, cmd) def browserlist(tb): - filename = tb.tb_frame.f_code.co_filename - lineno = tb.tb_lineno - last = lineno - first = max(1, last-10) - for i in range(first, last+1): - if i = lineno: prefix = '***' + string.rjust(`i`, 4) + ':' - else: prefix = string.rjust(`i`, 7) + ':' - line = readfileline(filename, i) - if line[-1:] = '\n': line = line[:-1] - print prefix + line + filename = tb.tb_frame.f_code.co_filename + lineno = tb.tb_lineno + last = lineno + first = max(1, last-10) + for i in range(first, last+1): + if i = lineno: prefix = '***' + string.rjust(`i`, 4) + ':' + else: prefix = string.rjust(`i`, 7) + ':' + line = readfileline(filename, i) + if line[-1:] = '\n': line = line[:-1] + print prefix + line def browserexec(tb, cmd): - locals = tb.tb_frame.f_locals - globals = tb.tb_frame.f_globals - try: - exec(cmd+'\n', globals, locals) - except: - print '*** Exception:', - print sys.exc_type, - if sys.exc_value <> None: - print ':', sys.exc_value, - print - print 'Type help to get help.' + locals = tb.tb_frame.f_locals + globals = tb.tb_frame.f_globals + try: + exec(cmd+'\n', globals, locals) + except: + print '*** Exception:', + print sys.exc_type, + if sys.exc_value <> None: + print ':', sys.exc_value, + print + print 'Type help to get help.' def browserhelp(): - print - print ' This is the traceback browser. Commands are:' - print ' up : move one level up in the call stack' - print ' down : move one level down in the call stack' - print ' locals : print all local variables at this level' - print ' globals : print all global variables at this level' - print ' list : list source code around the failure' - print ' help : print help (what you are reading now)' - print ' quit : back to command interpreter' - print ' Typing any other 1-line statement will execute it' - print ' using the current level\'s symbol tables' - print + print + print ' This is the traceback browser. Commands are:' + print ' up : move one level up in the call stack' + print ' down : move one level down in the call stack' + print ' locals : print all local variables at this level' + print ' globals : print all global variables at this level' + print ' list : list source code around the failure' + print ' help : print help (what you are reading now)' + print ' quit : back to command interpreter' + print ' Typing any other 1-line statement will execute it' + print ' using the current level\'s symbol tables' + print def printtb(tb): - while tb: - print1tb(tb) - tb = tb.tb_next + while tb: + print1tb(tb) + tb = tb.tb_next def print1tb(tb): - printtbheader(tb) - if tb.tb_frame.f_locals is not tb.tb_frame.f_globals: - printsymbols(tb.tb_frame.f_locals) + printtbheader(tb) + if tb.tb_frame.f_locals is not tb.tb_frame.f_globals: + printsymbols(tb.tb_frame.f_locals) def printtbheader(tb): - filename = tb.tb_frame.f_code.co_filename - lineno = tb.tb_lineno - info = '"' + filename + '"(' + `lineno` + ')' - line = readfileline(filename, lineno) - if line: - info = info + ': ' + string.strip(line) - print info + filename = tb.tb_frame.f_code.co_filename + lineno = tb.tb_lineno + info = '"' + filename + '"(' + `lineno` + ')' + line = readfileline(filename, lineno) + if line: + info = info + ': ' + string.strip(line) + print info def printsymbols(d): - keys = d.keys() - keys.sort() - for name in keys: - print ' ' + string.ljust(name, 12) + ':', - printobject(d[name], 4) - print + keys = d.keys() + keys.sort() + for name in keys: + print ' ' + string.ljust(name, 12) + ':', + printobject(d[name], 4) + print def printobject(v, maxlevel): - if v = None: - print 'None', - elif type(v) in (type(0), type(0.0)): - print v, - elif type(v) = type(''): - if len(v) > 20: - print `v[:17] + '...'`, - else: - print `v`, - elif type(v) = type(()): - print '(', - printlist(v, maxlevel) - print ')', - elif type(v) = type([]): - print '[', - printlist(v, maxlevel) - print ']', - elif type(v) = type({}): - print '{', - printdict(v, maxlevel) - print '}', - else: - print v, + if v = None: + print 'None', + elif type(v) in (type(0), type(0.0)): + print v, + elif type(v) = type(''): + if len(v) > 20: + print `v[:17] + '...'`, + else: + print `v`, + elif type(v) = type(()): + print '(', + printlist(v, maxlevel) + print ')', + elif type(v) = type([]): + print '[', + printlist(v, maxlevel) + print ']', + elif type(v) = type({}): + print '{', + printdict(v, maxlevel) + print '}', + else: + print v, def printlist(v, maxlevel): - n = len(v) - if n = 0: return - if maxlevel <= 0: - print '...', - return - for i in range(min(6, n)): - printobject(v[i], maxlevel-1) - if i+1 < n: print ',', - if n > 6: print '...', + n = len(v) + if n = 0: return + if maxlevel <= 0: + print '...', + return + for i in range(min(6, n)): + printobject(v[i], maxlevel-1) + if i+1 < n: print ',', + if n > 6: print '...', def printdict(v, maxlevel): - keys = v.keys() - n = len(keys) - if n = 0: return - if maxlevel <= 0: - print '...', - return - keys.sort() - for i in range(min(6, n)): - key = keys[i] - print `key` + ':', - printobject(v[key], maxlevel-1) - if i+1 < n: print ',', - if n > 6: print '...', + keys = v.keys() + n = len(keys) + if n = 0: return + if maxlevel <= 0: + print '...', + return + keys.sort() + for i in range(min(6, n)): + key = keys[i] + print `key` + ':', + printobject(v[key], maxlevel-1) + if i+1 < n: print ',', + if n > 6: print '...', _filecache = {} def readfileline(filename, lineno): - try: - stat = os.stat(filename) - except os.error, msg: - print 'Cannot stat', filename, '--', msg - return '' - cache_ok = 0 - if _filecache.has_key(filename): - cached_stat, lines = _filecache[filename] - if stat[ST_SIZE] = cached_stat[ST_SIZE] and \ - stat[ST_MTIME] = cached_stat[ST_MTIME]: - cache_ok = 1 - else: - print 'Stale cache entry for', filename - del _filecache[filename] - if not cache_ok: - lines = readfilelines(filename) - if not lines: - return '' - _filecache[filename] = stat, lines - if 0 <= lineno-1 < len(lines): - return lines[lineno-1] - else: - print 'Line number out of range, last line is', len(lines) - return '' + try: + stat = os.stat(filename) + except os.error, msg: + print 'Cannot stat', filename, '--', msg + return '' + cache_ok = 0 + if _filecache.has_key(filename): + cached_stat, lines = _filecache[filename] + if stat[ST_SIZE] = cached_stat[ST_SIZE] and \ + stat[ST_MTIME] = cached_stat[ST_MTIME]: + cache_ok = 1 + else: + print 'Stale cache entry for', filename + del _filecache[filename] + if not cache_ok: + lines = readfilelines(filename) + if not lines: + return '' + _filecache[filename] = stat, lines + if 0 <= lineno-1 < len(lines): + return lines[lineno-1] + else: + print 'Line number out of range, last line is', len(lines) + return '' def readfilelines(filename): - try: - fp = open(filename, 'r') - except: - print 'Cannot open', filename - return [] - lines = [] - while 1: - line = fp.readline() - if not line: break - lines.append(line) - if not lines: - print 'Empty file', filename - return lines + try: + fp = open(filename, 'r') + except: + print 'Cannot open', filename + return [] + lines = [] + while 1: + line = fp.readline() + if not line: break + lines.append(line) + if not lines: + print 'Empty file', filename + return lines |