python -m pdb -c繼續標誌參數不能理解

Question

我試圖運行python -m pdb -c continue foo.py，爲了啓用錯誤調試。 -c continue參數應爲allow me to do this，程序啓動時不指定'c'。但是，我收到錯誤：Error: -c does not exist。我將用virtualenv示例演示以下版本和設置。

$ virtualenv --version 
15.1.0 
$ virtualenv tempenv 
New python executable in tempenv/bin/python 
Installing setuptools, pip...done. 
$ source tempenv/bin/activate 
(tempenv)$ which python 
/usr0/home/eqzx/tempenv/bin/python 
(tempenv)$ python --version 
Python 2.7.6 
(tempenv)$ echo "1/0" > foo.py 
(tempenv)$ python foo.py 
Traceback (most recent call last): 
    File "foo.py", line 1, in <module> 
    1/0 
ZeroDivisionError: integer division or modulo by zero 

然後：

(tempenv)$ python -m pdb -c continue foo.py 
Error: -c does not exist 

本地安裝PDB到的virtualenv後：

(tempenv)$ pip install -I pdb 
(tempenv)$ which pdb 
/usr0/home/eqzx/tempenv/bin/pdb 
(tempenv)$ python -m pdb -c continue foo.py 
Error: -c does not exist 

運行沒有-c continue工作正常（雖然我很驚訝，它使用/usr/lib/python2.7/pdb.py而不是看當地pdb？即使當我重試virtualenv --no-site-packages，它仍然顯示相同的路徑）：

(tempenv)$ python -m pdb foo.py 
> /usr0/home/eqzx/foo.py(1)<module>() 
-> 1/0 
(Pdb) c 
Traceback (most recent call last): 
    File "/usr/lib/python2.7/pdb.py", line 1314, in main 
    pdb._runscript(mainpyfile) 
    File "/usr/lib/python2.7/pdb.py", line 1233, in _runscript 
    self.run(statement) 
    File "/usr/lib/python2.7/bdb.py", line 400, in run 
    exec cmd in globals, locals 
    File "<string>", line 1, in <module> 
    File "foo.py", line 1, in <module> 
    1/0 
ZeroDivisionError: integer division or modulo by zero 
Uncaught exception. Entering post mortem debugging 
Running 'cont' or 'step' will restart the program 
> /usr0/home/eqzx/foo.py(1)<module>() 
-> 1/0 
(Pdb) 

Answer 1

您正在使用Python 2.7，其中doesn't support the -c parameter：

New in version 3.2: pdb.py now accepts a -c option that executes commands as if given in a .pdbrc file, see Debugger Commands .

通過升級你的Python到3.6版本將解決這個問題。

我沒有在PyPI上找到任何將3.2+ pdb軟件包反編譯爲Python 2.7的軟件包。 The one you were trying to install是一個「密碼數據庫」。