I am using elpy on emacs, so coding would be easy. However, when I am working with python3.5, the newly-introduced keywords (e.g. async, await) cannot get the correct indents. At first, I raised one bug for elpy, https://github.com/jorgenschaefer/elpy/issues/848, and get the response from the author, who says the identation is provided by the Emacs' built-in python mode. As a result, I have to raise the bug to emacs, thank you! In GNU Emacs 25.1.50.1 (x86_64-apple-darwin15.2.0, NS appkit-1404.34 Version 10.11.2 (Build 15C50)) of 2016-01-10 built on rmbp.local Repository revision: 384cf23c6ed05e1f151032958a2cc2bb8100344b Configured using: 'configure --prefix=/usr/local/Cellar/emacs/HEAD --enable-locallisppath=/usr/local/share/emacs/site-lisp --infodir=/usr/local/Cellar/emacs/HEAD/share/info/emacs --with-xml2 --without-dbus --without-gnutls --with-ns --disable-ns-self-contained' Configured features: JPEG NOTIFY ACL LIBXML2 ZLIB TOOLKIT_SCROLL_BARS NS Important settings: value of $LC_ALL: en_US.UTF-8 value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: Python Minor modes in effect: show-paren-mode: t global-linum-mode: t linum-mode: t yas-minor-mode: t highlight-indentation-mode: t flymake-mode: t company-mode: t elpy-mode: t pyvenv-mode: t shell-dirtrack-mode: t global-eldoc-mode: t eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent messages: [yas] Loading compiled snippets from /Users/minjun/.emacs.d/elpa/elpy-20150830.510/snippets/python-mode Loading /Users/minjun/.emacs.d/elpa/elpy-20150830.510/snippets/python-mode/.yas-setup...done [yas] Loading for `python-mode', just-in-time: (lambda nil (yas--load-directory-1 (quote /Users/minjun/.emacs.d/elpa/yasnippet-20151011.1823/snippets/python-mode) (quote python-mode)))! [yas] Loading compiled snippets from /Users/minjun/.emacs.d/elpa/yasnippet-20151011.1823/snippets/python-mode Loading /Users/minjun/.emacs.d/elpa/yasnippet-20151011.1823/snippets/python-mode/.yas-setup...done (New file) Can’t guess python-indent-offset, using defaults: 4 next-line: End of buffer [2 times] Auto-saving...done Making completion list... [2 times] Load-path shadows: /Users/minjun/.emacs.d/elpa/flymake-0.4.16/flymake hides /usr/local/Cellar/emacs/HEAD/share/emacs/25.1.50/lisp/progmodes/flymake Features: (shadow sort mail-extr emacsbug message dired dired-loaddefs rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils company-files company-oddmuse company-keywords company-etags company-gtags company-dabbrev-code company-dabbrev company-cmake company-xcode company-clang company-eclim company-template company-css company-nxml company-bbdb term/xterm xterm hydandata-light-theme sourcegraph easy-mmode shr dom subr-x browse-url url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util mailcap paren linum yasnippet cl highlight-indentation flymake cc-defs company edmacro kmacro elpy pyvenv elpy-refactor python tramp-sh tramp tramp-compat tramp-loaddefs trampver shell pcomplete format-spec advice ido grep compile comint ansi-color files-x etags xref project ring cus-edit cus-start cus-load wid-edit finder-inf info json map seq package epg-config url-handlers url-parse auth-source cl-seq eieio byte-opt bytecomp byte-compile cl-extra cconv eieio-core cl-macs gv eieio-loaddefs gnus-util time-date mm-util help-fns help-mode easymenu cl-loaddefs pcase cl-lib mail-prsvr password-cache url-vars mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel ns-win ucs-normalize term/common-win tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese charscript case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote kqueue cocoa ns multi-tty make-network-process emacs) Memory information: ((conses 16 295530 14103) (symbols 48 29584 0) (miscs 40 173 412) (strings 32 49644 7954) (string-bytes 1 1487081) (vectors 16 43910) (vector-slots 8 801686 2901) (floats 8 681 779) (intervals 56 492 206) (buffers 976 16)) Best Regards, Minjun Xi Beijing Tuye Technologies