Question

x = open('data.txt', 'a')
g = open('graphing_data.txt', 'a')
subprocess.call(['sfit4Layer0.py', '-bv5', '-fh']) # only need to do this once
with open('filenames.txt', 'r') as r:
    for line in r:
        opusfile = line.strip()
        subprocess.call(['ckopus', '-FSNGC', '-SFL0', '-u6', opusfile])
        subprocess.call(['sfit4Layer0.py', '-bv5', '-fp'])
        subprocess.call(['sfit4Layer0.py', '-bv5', '-fs'])
        # now summary file is produced so must write in summary file code here

        for infile in glob.glob(os.path.join(road, 'summary*')):
            #write data from summary to data.txt and graphing_data.txt

x.close()
g.close()

我有一个程序需要将上面subprocess.call行中找到的命令写入终端来处理数据文件，所以我想我会编写一个程序来自动执行此操作（我有超过100个数据文件））。我的程序使用文件名列表引用filenames.txt，并将其作为opusfile读取，以使用第一个命令执行。它似乎正确处理第一个文件，然后我收到此错误：

Traceback (most recent call last):
  File "template.py", line 24, in <module>
    subprocess.call(['ckopus', '-FSNGC', '-SFL0', '-u6', opusfile])
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 522, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

我已经尝试过了解子进程模块，但是对我来说有点困惑，如果有人有提示或链接到一个很棒的实用教程 - 我在Python上相当新。

python中的子进程错误消息

0 个答案: