python pdb調試以及sublime3快捷鍵設置

pdb調試

如果對gdb比較熟悉的話，pdb就很容易上手。以一個demo快速了解常用的調試命令。

def test(a):
    while True:
        if a > 10:
            break
        a += 1
    return a

if __name__ == '__main__':
    test(1)

• python -m pdb test.py進入調試環境
• b test
  在test函數處設置斷點，斷點號為1

(Pdb) b test
Breakpoint 1 at f:\python\pdb\test.py:1

• b 2
  在第二行設置斷點，斷點號為2

(Pdb) b 2
Breakpoint 2 at f:\python\pdb\test.py:2

• condition 2 a7
  在2號斷點處設置條件 a7
• b
  顯示所有斷點信息

(Pdb) b
Num Type         Disp Enb   Where
1   breakpoint   keep yes   at f:\python\pdb\test.py:1
2   breakpoint   keep yes   at f:\python\pdb\test.py:2
    stop only if a==7

• cl 1
  去除1號斷點，只有cl刪除所有斷點

(Pdb) cl 1
Deleted breakpoint 1

• n
  單步跟蹤，不進入函數

(Pdb) n 
> f:\python\pdb\test.py(8)<module>()
-> if __name__ == '__main__':
(Pdb) n 
> f:\python\pdb\test.py(9)<module>()
-> test(1)

• s
  單步跟蹤，進入函數

(Pdb) s
--Call--
> f:\python\pdb\test.py(1)test()
-> def test(a):

• c
  繼續運行在 a==7 條件斷點處停止
• p a
  此時，打印a的值為7

(Pdb) c 
> f:\python\pdb\test.py(2)test()
-> while True:
(Pdb) p a
7

• a
  打印所在函數參數

(Pdb) a 
a = 7

• l
  查看運行到某處代碼

(Pdb) l 
  1     def test(a):
  2 B->     while True:
  3             if a > 10:
  4                 break
  5             a += 1
  6         return a
  7     if __name__ == '__main__':
  8         test(1)
[EOF]

• quit
  退出

sublime設置

sublime設置快捷鍵F5為運行，Ctrl+F5調試。就會對python調試方便很多。

• Package Control中下載SublimeREPL(Read-Eval-Print-Loop)
• Preferneces -> Key Bingdings-User進行設置

[
  {
    "keys": [
      "f5"
    ],
    "caption": "SublimeREPL: Python - RUN current file",
    "command": "run_existing_window_command",
    "args": {
      "id": "repl_python_run",
      "file": "config/Python/Main.sublime-menu"
    }
  },
  {
    "keys": [
      "ctrl+f5"
    ],
    "caption": "SublimeREPL: Python - PDB current file",
    "command": "run_existing_window_command",
    "args":
    {
        "id": "repl_python_pdb",
        "file": "config/Python/Main.sublime-menu"
    }
  }
]