我的机器上有ipython,但是python2的.一直想要一个python3的ipython,今天终于写了.其实很简单.

我们看一下现有的ipython.

$ which ipython
/usr/local/bin/ipython

$ cat /usr/local/bin/ipython
#!/usr/local/opt/python/bin/python2.7

# -*- coding: utf-8 -*-
import re
import sys

from IPython import start_ipython

if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
    sys.exit(start_ipython())
# 改一下第一行的蛇棒,改成python3即可
$ which python3
/usr/local/bin/python3

# 生成文件ipython3
# 改成可执行文件
$ chmod 755 ipython3

DONE