Emacs wrongly indent else expression in Python code

Question

Say, I got a simple Python code snippet:

def demo(i):
    if(i):
        print "True"
    else:
        print "False"

I make indent-region for the whole buffer after save using before-save-hook in my init.el, so after C-x C-s in this buffer, it whole buffer will be automatically indented, this works for C and elisp source code perfectly, but in Python code, that code snippet will become:

def demo(i):
    if(i):
        print "True"
else:
    print "False"

1. If I put point in else line, and type TAB, this line will be indented as it should be as the first code example.
2. If I mark the region of demo function or the whole buffer then type TAB or C-M-\ which is indent-region, the else line will become the incorrect indention style.
3. If I C-x C-s to save this buffer which will also execute the indent-region for the whole buffer as I said early, the else line will become the incorrect indention style as the later code example.

According to the https://stackoverflow.com/questions/19611681/emacs-python-indentation-for-single-line-if-else which was posted a year ago, the problem is not solved yet, so I post it here again to hope someone see it and give some solution.

BTW:

• GNU Emacs 24.4.1
• built-in python.el
• Fedora 21 32-bit

Answer 1

This is just a bug. It's fixed in Emacs trunk. Maybe you can grab a newer version of the mode from there, or dig the bug fix out of the git history.