Question

当我指定-a开关由于某种原因添加到配置文件时，它也会调用read_config文件。例如，我使用./script.py -a newfile.txt并正确添加文件，但随后返回＆＃34;未找到配置文件＆＃34;。

parser = argparse.ArgumentParser(description='Copy multiple Files from a specified data file')
parser.add_argument('-c', '--configfile', default="config.dat", help='file to read the config from')
parser.add_argument('-l', '--location', default="/home/admin/Documents/backup/",help='Choose location to store files')
parser.add_argument('-a', '--add', help='add new line to config data')

def read_config(data):
    try:
        dest = '/home/admin/Documents/backup/'
        # Read in date from config.dat
        data = open(data)
        # Interate through list of files '\n'
        filelist = data.read().split('\n')
        # Copy through interated list and strip white spaces and empty lines
        for file in filelist:
            if file:
                shutil.copy(file.strip(), dest)
    except FileNotFoundError:
        logger.error("Config file not found")
        print ("Config File not found")

不太确定为什么下面这部分工作但调用了read_config并找到了except错误。我哪里错了？

def addtofile(add):
    f = open('config.dat', "a")
    f.write(add + '\n')
    f.close()

args = vars(parser.parse_args())
read = read_config(args['configfile'])
add = addtofile(args['add'])

Answer 1

scala> val d = b.map{case(k,v) => (k) -> ( 
None.asInstanceOf[Option[Any]],Some(v).asInstanceOf[Option[Any]])}
d: org.apache.spark.rdd.RDD[(String, (Option[Any], Option[Any]))] = 
MapPartitionsRDD[5] at map at <console>:26

scala> val c = a.map{case(k,v) => (k) -> 
  (Some(v).asInstanceOf[Option[Any]],None.asInstanceOf[Option[Any]])}
c: org.apache.spark.rdd.RDD[(String, (Option[Any], Option[Any]))] = 
MapPartitionsRDD[6] at map at <console>:26

scala> c.union(d)
res1: org.apache.spark.rdd.RDD[(String, (Option[Any], Option[Any]))] = 
UnionRDD[7] at union at <console>:33

Answer 2

我认为您的解决方案将是：

parser = argparse.ArgumentParser()

parser.add_argument('-c', action='store_true')

a = parser.parse_args()
if a.c:
{
    print("get custom config")
}
else:
{
    print("using default config file")
}

追加到文件成功但从另一个def调用错误

2 个答案: