巨大的建築，總是由一木一石疊起來的，我們何妨做做這一木一石呢？我時常做些零碎事，就是爲此。
這是對的，但是我沒有說過這句話！ —— 魯迅
在spacemacs中用 M-x run-python 之後，報錯：
Warning (python): Your ‘python-shell-interpreter’ doesn’t seem to support readline, yet ‘python-shell-completion-native-enable’ was t and "python" is not part of the ‘python-shell-completion-native-disabled-interpreters’ list. Native completions have been disabled locally.
如圖：
查看一下 python-shell-completion-native-disabled-interpreters 的幫助
C-h v python-shell-completion-native-disabled-interpreters
如下：
python-shell-completion-native-disabled-interpreters is a variable defined in ‘python.el’.
Its value is ("pypy" "ipython")
Documentation:
List of disabled interpreters.
When a match is found, native completion is disabled.
You can customize this variable.
This variable was introduced, or its default value was changed, in
version 25.1 of Emacs.
[back]
寫的比較清楚，或者將 python 加入到list裏面，或者安裝一個ipython,我選擇了後者：
pip3 install ipython
再重新運行，一切正常了！，直接 C-c C-c 運行.如圖：
