在macOS High Sierra上找不到Python调试器pdb

Question

PythonDebuggingTools文档说Python调试器pdb是“所有Python安装的一部分”，但我在macOS High Sierra下找不到它：

pdb: command not found

这些天它应该作为macOS的正常部分安装吗？

Answer 1

没有名为pdb的命令，但您可以使用以下命令从shell调用pdb：

python -m pdb your_script.py

你可以阅读更多方法来调用pdb中的its doc。

Answer 2

如果你使用IPython，可以使用调用调试器

IPython 6.2.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: %pdb
Automatic pdb calling has been turned ON

In [2]: %pdb
Automatic pdb calling has been turned OFF

In [3]: ?pdb
Docstring:
Control the automatic calling of the pdb interactive debugger.

Call as '%pdb on', '%pdb 1', '%pdb off' or '%pdb 0'. If called without
argument it works as a toggle.

When an exception is triggered, IPython can optionally call the
interactive pdb debugger after the traceback printout. %pdb toggles
this feature on and off.

The initial state of this feature is set in your configuration
file (the option is ``InteractiveShell.pdb``).

If you want to just activate the debugger AFTER an exception has fired,
without having to type '%pdb on' and rerunning your code, you can use
the %debug magic.
File:      ~/anaconda/envs/py36/lib/python3.6/site-packages/IPython/core/magics/execution.py

您可能需要使用pip或conda安装IPython。