如何在iPython中将变量作为命令行参数传递？ [英] How to pass a variable as a command line argument in iPython?

问题描述

例如，我有一个Python模块和一个iPython模块，

For example, I have a Python module and a iPython module,

cmd.py

import sys
print sys.argv

test.ipynb

test.ipynb

for i in range(5):
   %run cmd.py i

当我运行test.ipynb时，它只是多次打印['cmd.py'，'i']。我怎样才能传递i的值而不是'i'作为命令行参数？

When I run test.ipynb, it just print ['cmd.py', 'i'] multiple times. How can I pass the value of i instead of 'i' as a command line argument?

推荐答案

shell模式从字面上解释所有内容（否则 cmd.py 也会被评估）。我会这么做：

the shell mode interprets everything literally (else cmd.py would be evaluated as well). I would just do:

for i in range(5):
   %run cmd.py $i

来自 http://ipython.readthedocs.io/en/stable/interactive/reference.html

IPython还允许您在进行系统调用时扩展python变量的值。在{braces}中包装变量或表达式：

IPython also allows you to expand the value of python variables when making system calls. Wrap variables or expressions in {braces}:

对于简单的情况，您也可以将$添加到变量名称

For simple cases, you can alternatively prepend $ to a variable name

这篇关于如何在iPython中将变量作为命令行参数传递？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！