你得到你的答案了吗?
调试 python 异常的一种方法是将代码移出 try 块(或临时复制以进行调试)。你会得到一个完整的跟踪。
当然,另一种方法是减少测试用例。在这里,我将问题减少到三行,并尝试了@s.lott 暗示的解决方案(在 getopts 调用中使用 'f:' ),并在最后展示了使用一些不同的测试数据进行调用的行为:
$ cat x1.py
import sys, getopt
opts, args = getopt.getopt(sys.argv[1:],'fdmse:d',['files=','data-source=','mode=','start','end'])
print "opts=", opts, "args=", args
$ python x1.py -f=dummy.csv argblah
Traceback (most recent call last):
File "x1.py", line 2, in <module>
opts, args = getopt.getopt(sys.argv[1:],'fdmse:d',['files=','data-source=','mode=','start','end'])
File "/usr/lib/python2.6/getopt.py", line 91, in getopt
opts, args = do_shorts(opts, args[0][1:], shortopts, args[1:])
File "/usr/lib/python2.6/getopt.py", line 191, in do_shorts
if short_has_arg(opt, shortopts):
File "/usr/lib/python2.6/getopt.py", line 207, in short_has_arg
raise GetoptError('option -%s not recognized' % opt, opt)
getopt.GetoptError: option -= not recognized
$ sed 's/fdm/f:dm/' <x1.py >x2.py
$ diff x1.py x2.py
2c2
< opts, args = getopt.getopt(sys.argv[1:],'fdmse:d',['files=','data-source=','mode=','start','end'])
---
> opts, args = getopt.getopt(sys.argv[1:],'f:dmse:d',['files=','data-source=','mode=','start','end'])
$ python x2.py -f=dummy.csv argblah
opts= [('-f', '=dummy.csv')] args= ['argblah']
$ python x1.py -f dummy.csv argblah
opts= [('-f', '')] args= ['dummy.csv', 'argblah']