Is it possible to start debugger on a specific line? #120

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1. ionelmc commented on Dec 6, 2023

   

   ionelmc

   on Dec 6, 2023

   Owner

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   Yes, it is, because tracing in general is post-facto, the action will be called after the code being traced has been executed.

   Is there a specific problem you're trying to solve there? Seems like you could give more context...
2. max-arnold commented on Dec 6, 2023

   

   max-arnold

   on Dec 6, 2023

   Author

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   I'm trying to invoke pdb (for step-by step debugging and altering some variables) at specific line without editing the source code. The code fragment looks like this:

      def __init__(...
       ):
           """
           A docstring
           """
   
           self.parent_loader = None   #### TARGET LINE (253) ####
           self.inject_globals = {}
           self.pack = {} if pack is None else pack
           for i in self.pack:
               if isinstance(self.pack[i], salt.loader.context.NamedLoaderContext):
                   self.pack[i] = self.pack[i].value()
           if opts is None:
               opts = {}
           opts = copy.deepcopy(opts)
   

   But the debugger gets invoked in stdlib inside of the next (nearest) call:

   -> def deepcopy(x, memo=None, _nil=[]):
   (Pdb)