当我指定命令行选项时,getopt似乎不起作用,抛出异常,这个名为o.py的文件:
import getopt
import sys
opts,args = getopt.getopt(sys.argv[1:], "m:p:", ['mode', 'perf'])
for opt_name,opt_value in opts:
if opt_name in ('--mode'):
print opt_name
continue
if opt_name in ('--perf'):
print opt_name
continue
然后在以下情况下出现运行时异常:
python o.py --mode=a
Traceback (most recent call last):
File "o.py", line 3, in <module>
opts,args = getopt.getopt(sys.argv[1:], "m:p:", ['mode', 'perf'])
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/getopt.py", line 88, in getopt
opts, args = do_longs(opts, args[0][2:], longopts, args[1:])
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/getopt.py", line 159, in do_longs
raise GetoptError('option --%s must not have an argument' % opt, opt)
getopt.GetoptError: option --mode must not have an argument
opts, args = do_longs(opts, args[0][2:], longopts, args[1:])
文件“/library/frameworks/python.framework/versions/2.7/lib/python2.7/getopt.py”,第159行
raise getopterror('option--%s不能有参数%opt,opt)
getopt.getopterror:option--mode不能有参数
那我哪里出错了,怎么解决呢?