subprocess.check_call

时间: 2023-12-26 08:05:04 浏览: 27
subprocess.check_call is a Python method that is used to execute a command or a program in a new process. It is a blocking call, which means that the calling process will wait for the command to complete before continuing execution. If the command returns a non-zero exit status, a CalledProcessError will be raised. This method is commonly used for running shell commands in Python scripts. Syntax: ``` subprocess.check_call(args, *, stdin=None, stdout=None, stderr=None, shell=False, cwd=None, timeout=None, encoding=None, errors=None) ``` Parameters: - args: A string or a sequence containing the command to be executed and its arguments. - stdin: A file-like object representing the standard input of the command. If None, the standard input is redirected to /dev/null. - stdout: A file-like object representing the standard output of the command. If None, the standard output is redirected to /dev/null. - stderr: A file-like object representing the standard error of the command. If None, the standard error is redirected to stdout. - shell: A boolean value indicating whether the command should be executed in a shell or not. If True, the command is executed in a shell. If False, the command is executed directly. - cwd: The working directory in which the command should be executed. - timeout: The maximum amount of time in seconds that the command is allowed to run. If the command takes longer than the specified timeout, a TimeoutExpired error is raised. - encoding: The character encoding to be used for the standard input, output, and error streams. - errors: The error handling strategy to be used for the standard input, output, and error streams. Return Value: - This method returns None if the command is executed successfully. If the command returns a non-zero exit status, a CalledProcessError is raised.

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Traceback (most recent call last): File "e:\mmpretrain-main\mmpretrain\.mim\tools\train.py", line 159, in <module> main() File "e:\mmpretrain-main\mmpretrain\.mim\tools\train.py", line 146, in main cfg = Config.fromfile(args.config) File "E:\Anaconda\envs\mmpose\lib\site-packages\mmengine\config\config.py", line 178, in fromfile cfg_dict, cfg_text, env_variables = Config._file2dict( File "E:\Anaconda\envs\mmpose\lib\site-packages\mmengine\config\config.py", line 522, in _file2dict eval(codeobj, global_locals_var, global_locals_var) File "", line 37, in <module> ValueError: dictionary update sequence element #0 has length 1; 2 is required Traceback (most recent call last): File "E:\Anaconda\envs\mmpose\lib\runpy.py", line 194, in _run_module_as_main return _run_code(code, main_globals, None, File "E:\Anaconda\envs\mmpose\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "E:\Anaconda\envs\mmpose\Scripts\mim.exe\__main__.py", line 7, in <module> File "E:\Anaconda\envs\mmpose\lib\site-packages\click\core.py", line 1130, in __call__ return self.main(*args, **kwargs) File "E:\Anaconda\envs\mmpose\lib\site-packages\click\core.py", line 1055, in main rv = self.invoke(ctx) File "E:\Anaconda\envs\mmpose\lib\site-packages\click\core.py", line 1657, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "E:\Anaconda\envs\mmpose\lib\site-packages\click\core.py", line 1404, in invoke return ctx.invoke(self.callback, **ctx.params) File "E:\Anaconda\envs\mmpose\lib\site-packages\click\core.py", line 760, in invoke return __callback(*args, **kwargs) File "E:\Anaconda\envs\mmpose\lib\site-packages\mim\commands\train.py", line 100, in cli is_success, msg = train( File "E:\Anaconda\envs\mmpose\lib\site-packages\mim\commands\train.py", line 261, in train ret = subprocess.check_call( File "E:\Anaconda\envs\mmpose\lib\subprocess.py", line 364, in check_call raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['E:\\Anaconda\\envs\\mmpose\\python.exe', 'e:\\mmpretrain-main\\mmpretrain\\.mim\\tools\\train.py', 'data/resnet18_finetune.py', '--launcher', 'none', '--work- dir=./exp']' returned non-zero exit status 1.

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