我在iOS应用中嵌入了libPython.a,我使用PyRun_SimpleFileEx
运行脚本:
Py_SetPythonHome((char *)[resourcePath UTF8String]);
Py_Initialize();
const char* argv[] = {
…
">/dev/null"
};
PySys_SetArgv(sizeof(argv)/sizeof(char*), (char**)argv);
PyEval_InitThreads();
const char* prog = ...;
FILE* fd = fopen(prog, "r");
if (fd == NULL) {
ret = 1;
} else {
ret = PyRun_SimpleFileEx(fd, prog, 1);
if (ret != 0)
NSLog(@"Application quit abnormally!");
}
Py_Finalize();
一切正常,但我还没有找到重定向stdout / stderr的方法,这样我就无法登录iOS控制台。
我尝试添加"> / dev / null"作为脚本的附加参数,但由于没有shell,它显然不起作用。
如何在这种情况下重定向stdout / stderr?或者,有一种方法可以拦截"所有Python输出调用?感谢。
答案 0 :(得分:0)
以这种方式使用libpython时,# AWS Credentials
client = boto3.client('athena',aws_access_key_id=aws_server_access_key, aws_secret_access_key=aws_server_secret_key,region_name='us-east-1')
ba = boto3.client('s3',aws_access_key_id=aws_server_access_key, aws_secret_access_key=aws_server_secret_key,region_name='us-east-1')
# Get latest modified file
get_last_modified = lambda obj: int(obj['LastModified'].strftime('%s'))
objs = ba.list_objects_v2(Bucket=BUCKET_NAME)['Contents']
last_added = [obj['Key'] for obj in sorted(objs, key=get_last_modified)][0]
s3 = boto3.resource('s3', aws_access_key_id= aws_server_access_key,aws_secret_access_key= aws_server_secret_key)
try:
s3.Bucket(BUCKET_NAME).download_file(last_added, last_added)
except botocore.exceptions.ClientError as e:
if e.response['Error']['Code'] == "404":
print("The object does not exist.")
else:
raise
和stdout
是调用stderr
的进程。你可以尝试
PyRun_SimpleFileEx
如果要在脚本运行后还原它们,则应查看freopen("/dev/null", "w", stdout);
freopen("/dev/null", "w", stderr);
以首先获取原始值,然后还原它们。