Python:使用 OptionParser 从命令行获取 2 个文件名

Question

我想使用这样的程序:

python myprg.py -f1 t1.txt -f2 t.csv

其中 f1、f2 是文件名。
我有以下代码:

from optparse import OptionParser
def main():
    optparser = OptionParser()
    optparser.add_option('-f1', '--inputFile1',
                         dest='input1',
                         help='file to be checked',
                         default=None)
    optparser.add_option('-f2', '--inputFile2',
                         dest='input2',
                         help='basis csv file',
                         default='defaut.csv')
....
....  

我在文档中读到 -f 读取 FILE 类型，但是如果我将 -f 放在两者中，则会出现冲突错误。
关于如何继续的任何建议？
谢谢!

Answer 1

根据documentation , optparse 不支持带有单个连字符 (-) 的多个字母。

Some option syntaxes that the world has seen include:

• a hyphen followed by a few letters, e.g. -pf (this is not the same as multiple options merged into a single argument)
• a hyphen followed by a whole word, e.g. -file (this is technically equivalent to the previous syntax, but they aren’t usually seen in
  the same program)
• a plus sign followed by a single letter, or a few letters, or a word, e.g. +f, +rgb
• a slash followed by a letter, or a few letters, or a word, e.g. /f, /file

These option syntaxes are not supported by optparse, and they never will be.

您应该将选项键更改为 -f1 到 -a ， -f2 到 -b .

python myprg.py -a t1.txt -b t.csv 



optparser.add_option('-a', '--inputFile1',
                         dest='input1',
                         help='file to be checked',
                         default=None)
optparser.add_option('-b', '--inputFile2',
                         dest='input2',
                         help='basis csv file',
                         default='defaut.csv')