在Python调试器中打破成员函数 [英] Breaking at a member function in the Python debugger

问题描述

这应该是一个微不足道的问题，但是到目前为止，我的搜索是无效的：

我第一次使用Python调试器（pdb），很高兴找到使用gdb熟悉的大部分命令。

但是，当我在 parse （）中设置断点时，

 （Pdb）b JamParser.parse 
 ***指定的对象'JamParser.parse'不是一个函数
或者没有在sys.path中找到。 
  

我尝试了几种变体，包括：

 （Pdb）b jam2dot.py:JamParser.parse 
  

我假设，因为我从命令行调用调试器，它知道文件中的实体。这是假的假设吗？

文档表示break可以作为一个参数，但不提供任何语法帮助。那么如何按名称设置成员函数的断点？

解决方案

您需要导入名称才能引用它们在调试器中。

 （Pdb）from jam2dot import JamParser 
（Pdb）b JamParser.parse 
  

This should be a trivial question, but my search so far has been fruitless:

I'm using the Python debugger (pdb) for the first time, and was quite pleased to find most of the commands familiar from using gdb.

However, when I went to set a breakpoint in the parse() member of class JamParser with the statement:

(Pdb) b JamParser.parse
*** The specified object 'JamParser.parse' is not a function
or was not found along sys.path.

I tried several several variants, including:

(Pdb) b jam2dot.py:JamParser.parse

I assume that since I invoked the debugger from the command line that it knows the entities in the file. Is that a false assumption?

The documentation says that break can take a function as an argument, but doesn't offer any syntax help. So how do I set a breakpoint for a member function by name?

解决方案

You need to import names before you can refer to them in the debugger.

(Pdb) from jam2dot import JamParser
(Pdb) b JamParser.parse

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