如何跳过 pdb 的循环？

如何使用 pdb.set_trace()跳过循环？

比如说,

pdb.set_trace()
for i in range(5):
print(i)


print('Done!')

pdb在循环之前提示。我输入一个命令。返回所有1-5个值，然后在执行 print('Done!')之前再次用 pdb提示我。

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If I understood this correctly.

One possible way of doing this would be:

Once you get you pdb prompt . Just hit n (next) 10 times to exit the loop.

However, I am not aware of a way to exit a loop in pdb.

You could use r to exit a function though.

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You should set a breakpoint after the loop ("break main.py:4" presuming the above lines are in a file called main.py) and then continue ("c").

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最佳答案

Try the until statement.

Go to the last line of the loop (with next or n) and then use until or unt. This will take you to the next line, right after the loop.

http://www.doughellmann.com/PyMOTW/pdb/ has a good explanation

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You can set another breakpoint after the loop and jump to it (when debugging) with c:

pdb.set_trace()
for i in range(5):
print(i)


pdb.set_trace()
print('Done!')
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In the link mentioned by the accepted answer (https://pymotw.com/3/pdb/), I found this section somewhat more helpful:

To let execution run until a specific line, pass the line number to the until command.

Here's an example of how that can work re: loops:

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It spares you from two things: having to create extra breakpoints, and having to navigate to the end of a loop (especially when you might have already iterated such that you wouldn't be able to without re-running the debugger).

Here's the Python docs on until. Btw I'm using pdb++ as a drop-in for the standard debugger (hence the formatting) but until works the same in both.


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