{"id":720,"date":"2017-04-12T19:06:36","date_gmt":"2017-04-12T11:06:36","guid":{"rendered":"http:\/\/192.168.1.20\/?p=720"},"modified":"2017-10-23T11:52:49","modified_gmt":"2017-10-23T03:52:49","slug":"python-debug-{d4daabd1ba368d9860c36387ddb72bbda14f8f9559d69d60a952800885260c03}e6{d4daabd1ba368d9860c36387ddb72bbda14f8f9559d69d60a952800885260c03}a8{47dd41ec6bdcbd9a214c783a3735392b82ea6d1d918378c5a5","status":"publish","type":"post","link":"http:\/\/alextop.top\/?p=720","title":{"rendered":"Python debug \u6a21\u5757\u4e4bpdb\u7ffb\u8bd1\u6536\u85cf"},"content":{"rendered":"
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Python debug \u6a21\u5757\u4e4bpdb–\uff08\u4e00\uff09<\/a><\/span><\/h1>\n<\/div>\n
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2011-11-01 11:28<\/span><\/div>\n<\/div>\n
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\u53c2\u8003\u6587\u4ef6http:\/\/pythonconquerstheuniverse.wordpress.com\/category\/Python<\/a>-debugger\/<\/p>\n

\u7ffb\u8bd1\u4e0d\u662f\u4e00\u4e00\u5bf9\u5e94<\/p>\n

Debug\u529f\u80fd\u5bf9\u4e8edeveloper\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0cpython\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u6a21\u5757pdb\u8ba9\u4f60\u53ef\u4ee5\u5728\u7528\u6587\u672c\u7f16\u8f91\u5668\u5199\u811a\u672c\u7684\u60c5\u51b5\u4e0b\u8fdb\u884cdebug. pdb\u662fpython debugger\u7684\u7b80\u79f0\u3002<\/p>\n

\u5e38\u7528\u7684\u4e00\u4e9b\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u547d\u4ee4<\/th>\n\u7528\u9014<\/th>\n<\/tr>\n<\/thead>\n
break \u6216 b<\/td>\n\u8bbe\u7f6e\u65ad\u70b9<\/td>\n<\/tr>\n
continue \u6216 c<\/td>\n\u7ee7\u7eed\u6267\u884c\u7a0b\u5e8f<\/td>\n<\/tr>\n
list \u6216 l<\/td>\n\u67e5\u770b\u5f53\u524d\u884c\u7684\u4ee3\u7801\u6bb5<\/td>\n<\/tr>\n
step \u6216 s<\/td>\n\u8fdb\u5165\u51fd\u6570<\/td>\n<\/tr>\n
return \u6216 r<\/td>\n\u6267\u884c\u4ee3\u7801\u76f4\u5230\u4ece\u5f53\u524d\u51fd\u6570\u8fd4\u56de<\/td>\n<\/tr>\n
exit \u6216 q<\/td>\n\u4e2d\u6b62\u5e76\u9000\u51fa<\/td>\n<\/tr>\n
next \u6216 n<\/td>\n\u6267\u884c\u4e0b\u4e00\u884c<\/td>\n<\/tr>\n
pp<\/td>\n\u6253\u5370\u53d8\u91cf\u7684\u503c<\/td>\n<\/tr>\n
help<\/td>\n\u5e2e\u52a9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5f00\u59cb\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528pdb\u3002<\/p>\n

\u4f7f\u7528\u7684\u6d4b\u8bd5<\/a>\u4ee3\u78011\uff1a\u00a0epdb1.py<\/p>\n

import pdb
\na = “aaa”
\npdb.set_trace()
\nb = “bbb”
\nc = “ccc”
\nfinal = a + b + c
\nprint final
\n\u5173\u4e8eset_trace()
\npdb.<\/tt>set_trace<\/tt>(<\/big>)<\/big>\u00b6<\/a><\/p>\n

\n
Enter the debugger at the calling stack frame. This is useful to hard-code abreakpoint at a given point in a program, even if the code is not otherwisebeing debugged (e.g. when an assertion fails).<\/dd>\n<\/dl>\n

1 \u5f00\u59cb\u8c03\u8bd5\uff1a[root@rcc-pok-idg-2255 ~]#\u00a0 python epdb1.py
\n> \/root\/epdb1.py(4)?()
\n-> b = “bbb”
\n(Pdb) n
\n> \/root\/epdb1.py(5)?()
\n-> c = “ccc”
\n(Pdb)
\n> \/root\/epdb1.py(6)?()
\n-> final = a + b + c
\n(Pdb) list
\n1\u00a0\u00a0\u00a0\u00a0 import pdb
\n2\u00a0\u00a0\u00a0\u00a0 a = “aaa”
\n3\u00a0\u00a0\u00a0\u00a0 pdb.set_trace()
\n4\u00a0\u00a0\u00a0\u00a0 b = “bbb”
\n5\u00a0\u00a0\u00a0\u00a0 c = “ccc”
\n6\u00a0 -> final = a + b + c
\n7\u00a0\u00a0\u00a0\u00a0 print final
\n[EOF]
\n(Pdb)
\n[EOF]
\n(Pdb) n
\n> \/root\/epdb1.py(7)?()
\n-> print final
\n(Pdb)<\/p>\n

    \n
  1. \u4f7f\u7528n+enter\u8868\u793a\u6267\u884c\u5f53\u524d\u7684statement\uff0c\u5728\u7b2c\u4e00\u6b21\u6309\u4e0b\u4e86n+enter\u4e4b\u540e\u53ef\u4ee5\u76f4\u63a5\u6309enter\u8868\u793a\u91cd\u590d\u6267\u884c\u4e0a\u4e00\u6761debug\u547d\u4ee4\u3002<\/li>\n<\/ol>\n

    If you press ENTER without entering anything, pdb will re-execute the last command that you gave it.<\/p>\n

      \n
    1. quit\u6216\u8005q\u53ef\u4ee5\u9000\u51fa\u5f53\u524d\u7684debug\uff0c\u4f46\u662fquit\u4f1a\u4ee5\u4e00\u79cd\u975e\u5e38\u7c97\u9c81\u7684\u65b9\u5f0f\u9000\u51fa\u7a0b\u5e8f\uff0c\u76f4\u63a5crash<\/li>\n<\/ol>\n

      [root@rcc-pok-idg-2255 ~]#\u00a0 python epdb1.py
      \n> \/root\/epdb1.py(4)?()
      \n-> b = “bbb”
      \n(Pdb) n
      \n> \/root\/epdb1.py(5)?()
      \n-> c = “ccc”
      \n(Pdb) q
      \nTraceback (most recent call last):
      \nFile “epdb1.py”, line 5, in ?
      \nc = “ccc”
      \nFile “epdb1.py”, line 5, in ?
      \nc = “ccc”
      \nFile “\/usr\/lib64\/python2.4\/bdb.py”, line 48, in trace_dispatch
      \nreturn self.dispatch_line(frame)
      \nFile “\/usr\/lib64\/python2.4\/bdb.py”, line 67, in dispatch_line
      \nif self.quitting: raise BdbQuit
      \nbdb.BdbQuit<\/p>\n