Question

我遇到Python在我的Linux机器上找到可用的可执行文件的问题。我的默认PATH包含这个可执行文件（svnlook）但是当我运行python脚本时，下面的函数无法找到可执行文件。关于如何解决这个问题的任何想法？

def command_output(cmd):
    child  = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE)
    output = child.communicate()[0]
    return output, child.returncode


def get_author():
    cmd = "svnlook author %s %s %s" % (svn_opt, svn_txn, svn_repo)
    author, return_code = command_output(cmd)

    return author.strip()

错误：

 Traceback (most recent call last):
  File "/home/user/app/csvn/data/repositories/repo/hooks/pre-commit", line 82, in <module>
    author = get_author()
  File "/home/user/app/csvn/data/repositories/repo/hooks/pre-commit", line 53, in get_author
    author, return_code = command_output(cmd)
  File "/home/user/app/csvn/data/repositories/repo/hooks/pre-commit", line 36, in command_output
    child  = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE)
  File "/home/user/app/activepython-2.7.2.5_x86_64/lib/python2.7/subprocess.py", line 679, in __init__
    errread, errwrite)
  File "/home/user/app/activepython-2.7.2.5_x86_64/lib/python2.7/subprocess.py", line 1228, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
Error: [Errno 2] No such file or directory

Answer 1

您可能希望提供可执行文件的完整路径，例如/usr/bin/svnlook或/usr/local/bin/svnlook而非svnlook。

有关详细信息，请参阅this answer to a related question。

Answer 2

尝试从控制台运行它。确保权限/可执行性正确。尝试os.system（）。

Python subprocess.Popen未找到可执行文件

2 个答案: