Python之使用许多参数调用 popen

我正在尝试使用参数列表调用 popen。

    execString = "java -jar {} {} {} {} {} {}".format(os.path.join(config.java_root, 
                                                                   config.java_jar), 
                                               self.canvasSize, 
                                               self.flightId, 
                                               self.domain, 
                                               self.defPath, 
                                               self.harPath) 
    execStringList = execString.split() 
    print execStringList 
    subprocess.Popen([execStringList]) 

execStringList 是:

['java', '-jar', '/Users/me/Projects/reporting-test/build/clickunit-0.1.jar', '300x1050', '123', 'dev.me.net', '/Users/me/Projects/reporting-test/src/definitions/300x1050.yml', '/Users/me/Projects/reporting-test/out/01/15112'] 

根据:Python OSError: [Errno 2]是正确的格式。但是，我收到以下错误:

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 672, in __init__ 
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1202, in _execute_child 
AttributeError: 'list' object has no attribute 'rfind' 

如果我将 execString 视为一个字符串，我会得到一个不同的错误:

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 672, in __init__ 
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1202, in _execute_child 
OSError: [Errno 2] No such file or directory 

即使我从终端运行这个命令，它仍然有效。

$> java -jar /Users/me/Projects/reporting-test/build/clickunit-0.1.jar 300x1050 123 dev.me.net /Users/me/Projects/reporting-test/src/definitions/300x1050.yml /Users/me/Projects/reporting-test/out/01/3727 

TIA 寻求帮助!

编辑

编辑编辑

没关系，我明白了这个问题。 []...谢谢!呵呵

请您参考如下方法:

execStringList 已经是一个列表，所以你可以直接将它传递给 subprocess.Popen。

execString = "java -jar {} {} {} {} {} {}".format(os.path.join(config.java_root, 
                                                               config.java_jar), 
                                           self.canvasSize, 
                                           self.flightId, 
                                           self.domain, 
                                           self.defPath, 
                                           self.harPath) 
execStringList = execString.split() 
print execStringList 
# Pass execStringList directly to Popen 
subprocess.Popen(execStringList)