当我导入下面的.py脚本作为模块时，我如何传递参数?

Question

我知道如何通过命令行执行它，但是寻找在另一个python脚本中执行的输入。我尝试将参数传递为main(——score-thr 0.7，——show, vid, config_file, chkpnt_file)。但我不知道该怎么做。提前感谢您的帮助!

import argparse
import cv2
import mmcv
from mmdet.apis import inference_detector, init_detector

def parse_args():
parser = argparse.ArgumentParser(description='MMDetection video demo')
parser.add_argument('video', help='Video file')
parser.add_argument('config', help='Config file')
parser.add_argument('checkpoint', help='Checkpoint file')
parser.add_argument(
'--device', default='cuda:0', help='Device used for inference')
parser.add_argument(
'--score-thr', type=float, default=0.7, help='Bbox score threshold')
parser.add_argument('--out', type=str, help='Output video file')
parser.add_argument('--show', action='store_true', help='Show video')
parser.add_argument(
'--wait-time',
type=float,
default=1,
help='The interval of show (s), 0 is block')
args = parser.parse_args()
return args

def main():
args = parse_args()
assert args.out or args.show, 
('Please specify at least one operation (save/show the '
'video) with the argument "--out" or "--show"')
model = init_detector(args.config, args.checkpoint, device=args.device)
video_reader = mmcv.VideoReader(args.video)
video_writer = None
if args.out:
fourcc = cv2.VideoWriter_fourcc(*'mp4v')
video_writer = cv2.VideoWriter(
args.out, fourcc, video_reader.fps,
(video_reader.width, video_reader.height))
for frame in mmcv.track_iter_progress(video_reader):
result = inference_detector(model, frame)
frame = model.show_result(frame, result, score_thr=args.score_thr)
if args.show:
cv2.namedWindow('video', 0)
mmcv.imshow(frame, 'video', args.wait_time)
if args.out:
video_writer.write(frame)
if video_writer:
video_writer.release()
cv2.destroyAllWindows()

if __name__ == '__main__':
main()

Answer 1

main()在使用argparse时从sys.argv获取参数。所以你需要在调用它之前填写它

sys.argv = ['progname.py', '--score-thr', '0.7', '--show', vid, config_file, chkpnt_file]
main()