3

I'm experiencing frustrating behaviour with automatic Python indentation when ending a highly indented block. I've used pilcrows to indicate where I want newlines in the following example:

def f():
    if True:
        if True:
            if True:
                print ""
¶
¶
¶
def g():
    print ""

After finishing typing the first function, every subsequent line is automatically indented by 16 spaces, which all need to be deleted. I understand that the first time I hit return, indenting to that level makes sense. But I am surprised that when hitting return on an unindented line it would also be assumed that I wanted the maximum valid indentation.

This behaviour seems to occur in 24.4.1 with both the new python.el (Gallina) and python-mode.el. (It also appeared to happen when I tried to use the old python.el by Dave Love, but I could not work out how to verify which python.el had actually loaded). I note that with the new python.el I can use C-j to return without indenting, but that doesn't help much with a situation such as the following:

def f():
    if True:
        if True:
            if True:
                print ""
    ¶
    print ""

I don't want to disable automatic indentation, but is there a way to make it less aggressive and accept valid lower levels of indentation somehow?

2

With python-mode.el each block may have it's own length of indent-step, i.e. the value of py-indent-offset.

py-smart-indentation must be on.

When introducing a new block, the desired indentation needs to be set/correct on the first indented line. With the next line, the new distance should have been learned.

In case of error, please file a bug-report here:

https://bugs.launchpad.net/python-mode

  • This works in the Emacs GUI, but it's not working for me when running in the terminal with emacs --no-window-system. I shall investigate further and file a bug if necessary. – Ian Mackinnon Jun 12 '15 at 14:35

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