blocks|key|1458146|text|您可以启动调试器：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1458147|import+pdb;pdb.set_trace()+|code-block|syntax|javascript|1458148|不知道你想要REPL做什么，但是调试器非常相似。|1458149|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can launch the debugger:

<pre><code>import pdb;pdb.set_trace() 
</code></pre>

Not sure what you want the REPL for, but the debugger is very similar.

blocks|key|1458172|text|您可以尝试使用python的交互式选项：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1458173|python+-i+program.py|code-block|syntax|javascript|1458174|这将执行program.py中的代码，然后转到REPL。您在program.py顶层定义或导入的任何内容都将可用。|1458175|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You could try using the interactive option for python:

<pre><code>python -i program.py
</code></pre>

This will execute the code in program.py, then go to the REPL. Anything you define or import in the top level of program.py will be available.

blocks|key|1243465|text|我经常用到这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1243466|def+interact():
++++import+code
++++code.InteractiveConsole(locals=globals()).interact()|code-block|syntax|javascript|1243467|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I frequently use this:

<pre><code>def interact():
 import code
 code.InteractiveConsole(locals=globals()).interact()
</code></pre>

blocks|key|1458240|text|要使用iPython和调试器的功能，您应该使用ipdb，|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1458241|您可以按照与pdb相同的方式使用它，只是增加了：|1458242|import+ipdb
ipdb.set_trace()|code-block|syntax|javascript|1458243|entityMap|0|LINK|mutability|MUTABLE|url|http://pypi.python.org/pypi/ipdb/^0|N|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

To get use of iPython and functionality of debugger you should use <a href="http://pypi.python.org/pypi/ipdb/" rel="noreferrer" title="ipdb">ipdb</a>, 

You can use it in the same way as pdb, with the addition of :

<pre><code>import ipdb
ipdb.set_trace()
</code></pre>

blocks|key|1243571|text|我只是在我自己的一个脚本中做到了这一点(它运行在一个自动化框架中，这是一个巨大的PITA工具)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1243572|x+=+0+#+exit+loop+counter
while+x+==+0:
++++user_input+=+raw_input("Please+enter+a+command,+or+press+q+to+quit:+")
++++if+user_input[0]+==+"q":
++++++++x+=+1
++++else:
++++++++try:
++++++++++++print+eval(user_input)
++++++++except:
++++++++++++print+"I+can't+do+that,+Dave."
++++++++++++continue|code-block|syntax|javascript|1243573|只需将其放在需要断点的任何位置，就可以使用与python解释器相同的语法检查状态(尽管它似乎不允许进行模块导入)。它不是很优雅，但它不需要任何其他设置。|1243574|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I just did this in one of my own scripts (it runs inside an automation framework that is a huge PITA to instrument):

<pre><code>x = 0 # exit loop counter
while x == 0:
 user_input = raw_input("Please enter a command, or press q to quit: ")
 if user_input[0] == "q":
 x = 1
 else:
 try:
 print eval(user_input)
 except:
 print "I can't do that, Dave."
 continue
</code></pre>

Just place this wherever you want a breakpoint, and you can check the state using the same syntax as the python interpreter (although it doesn't seem to let you do module imports).
It's not very elegant, but it doesn't require any other setup.

Is there a way to programmatically force a Python script to drop into a REPL at an arbitrary point in its execution, even if the script was launched from the command line?

I'm writing a quick and dirty plotting program, which I want to read data from stdin or a file, plot it, and then drop into the REPL to allow for the plot to be customized.

How to drop into REPL (Read, Eval, Print, Loop) from Python code

调试器

解释器

Python

有没有一种方法可以通过编程强制Python脚本在执行过程中的任意点放入REPL，即使该脚本是从命令行启动的？我正在编写一个又快又脏的绘图程序，我想要从标准输入或文件中读取数据，绘制它，然后放入REPL中，以便对绘图进行自定义。

问如何从Python代码进入REPL (Read，Eval，Print，Loop)
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