问题描述
我正在学习 Google 的 Python 练习，我需要能够从命令行执行此操作:
I'm going through Google's Python exercises and I need to be able to do this from the command line:
python babynames.py --summaryfile baby*.html
其中 python 是 Python shell，babynames.py 是 Python 程序，--summaryfile 是要被我的解释器解释的参数babynames 程序，baby*.html 是匹配该表达式的文件列表.但是，它不起作用，我不确定问题是 Windows 命令外壳还是 Python.baby*.html 表达式没有扩展到完整的文件列表，而是严格作为字符串传递.可以通过这种方式将多个文件传递给一个 Python 程序吗?
Where python is the Python shell, babynames.py is the Python program, --summaryfile is an argument to be interpreted by my babynames program, and baby*.html is the list of files matching that expression. However, it doesn't work and I'm not sure if the problem is the Windows command shell or Python. The baby*.html expression is not being expanded out to the full list of files, instead it's being passed strictly as a string. Can multiple files be passed to a Python program in such a way?
推荐答案
在将通配符传递给执行的程序或脚本之前，Windows 的命令解释器不会像 UNIX shell 那样扩展通配符.
Windows' command interpreter does not expand wildcards as UNIX shells do before passing them to the executed program or script.
python.exe -c "import sys; print sys.argv[1:]" *.txt
结果:
['*.txt']
解决方案:使用 glob 模块.
Solution: Use the glob module.
from glob import glob
from sys import argv
for filename in glob(argv[1]):
print filename
这篇关于将带星号的多个文件传递给 Windows 中的 python shell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！