错误13对m的权限被拒绝

Question

我只是测试如何从一个.py文件调用外部.py文件。 我有两个.py文件，都在同一个目录中。下面是主代码（runext.py假设调用ext.py）：

import subprocess
subprocess.call("/Users/training/PycharmProjects/MarcouFirstProject/ext.py")

py只是print("hey this actually worked")

但是，每次运行runext.py时，都会收到以下错误消息：

Traceback (most recent call last):
  File "/Users/training/PycharmProjects/MarcouFirstProject/runext.py", line 2, in <module>
    subprocess.call("/Users/training/PycharmProjects/MarcouFirstProject/ext.py")
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 557, in call
    with Popen(*popenargs, **kwargs) as p:
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 947, in __init__
    restore_signals, start_new_session)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 1551, in _execute_child
    raise child_exception_type(errno_num, err_msg)

PermissionError: [Errno 13] Permission denied

我不知道为什么它拒绝许可。如果有帮助的话，这是在学校的电脑上（我在上编程课）。

谢谢。