为什么 subprocess.run() 在某些应用程序上冻结？

Question

为什么 subprocess.run() 在此应用程序上冻结？

import subprocess
subprocess.run('eumdac.exe')

该应用程序来自官方来源：https://gitlab.eumetsat.int/eumetlab/data-services/eumdac/-/releases/1.2.0

这是我在 cmd.exe 中运行它得到的结果：

(project_directory)>eumdac
usage: eumdac [-h] [--version] [--set-credentials ConsumerKey ConsumerSecret] [--debug]
              {describe,search,download,subscribe,tailor} ...

EUMETSAT Data Access Client

positional arguments:
  {describe,search,download,subscribe,tailor}
    describe            describe a collection or product
    search              search for products at the collection level
    download            download product(s) from a collection
    subscribe           subscribe a server for a collection
    tailor              tailoring product(s) from collection

optional arguments:
  -h, --help            show this help message and exit
  --version             show program's version number and exit
  --set-credentials ConsumerKey ConsumerSecret
                        permanently set consumer key and secret and exit, see https://api.eumetsat.int/api-key
  --debug               show backtrace for errors

附言。 “cmd /c eumdac.exe” 都不起作用。

Answer 1

你可以使用subprocess.run(['powershell', './eumdac.exe', '-h'])

要捕获输出，您可以使用以下格式。

output = subprocess.run(['powershell', './eumdac.exe', '-h'], capture_output=True)
print(output.stdout.decode('utf-8'))