fastapi报错TypeError("'numpy.int64' object is not iterable"解决

 

目录

1.代码

1.1main.py

1.2start.sh?

bug1------[TypeError("'numpy.int64' object is not iterable")

bug2------"msg": "value is not a valid dict",

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1.代码

1.1main.py

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<code>import os import sys import uvicorn import numpy as np import cv2 import glob import datetime import json import shutil     from eval import *     from pydantic import BaseModel from fastapi import FastAPI     #args = ret_args() args.image = "00000.jpg:0.png"   with torch.no_grad():     if not os.path.exists('results'):         os.makedirs('results')       if args.cuda:         cudnn.fastest = True         torch.set_default_tensor_type('torch.cuda.FloatTensor')     else:         torch.set_default_tensor_type('torch.FloatTensor')       if args.resume and not args.display:         with open(args.ap_data_file, 'rb') as f:             ap_data = pickle.load(f)         calc_map(ap_data)         exit()       if args.image is None and args.video is None and args.images is None:         dataset = COCODetection(cfg.dataset.valid_images, cfg.dataset.valid_info,                                 transform=BaseTransform(), has_gt=cfg.dataset.has_gt)         prep_coco_cats()     else:         dataset = None              print('Loading model...', end='')     global net     net = Yolact()     net.load_weights(args.trained_model)     net.eval()     print(' Done.')       if args.cuda:         net = net.cuda()   ''' with torch.no_grad():     args.image = "00000.jpg:0.png"     print("args.image:::", args.image)     evaluate(net, dataset) '''     app = FastAPI()     class Item_setmentation(BaseModel):     img_url: str = None       @app.post('/LABEL/segmentation') def label(request_data: Item_setmentation):     print("coming into /AIPEX/labelimg !!!")     img_url = request_data.img_url     print(img_url)           seg_res = {}     with torch.no_grad():         args.image = img_url + ":0.png"         print("args.image:::", args.image)         seg_res = evaluate(net, dataset)                   print("seg_res in post api::::", seg_res)          return seg_res   if __name__ == '__main__':     uvicorn.run(app=app,                 host="0.0.0.0",                 port=8091,                 workers=1)   </code>

1.2start.sh?

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1	<code>uvicorn main:app --host 0.0.0.0 --port 8091</code>

bug1------[TypeError("'numpy.int64' object is not iterable")

上面的代码我打印出来seg_res内容如下：

 

看着是没问题的，但是我用postman调试之后发现http服务返回错误，错误提示如下：

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<code>INFO:     172.31.8.112:33098 - "POST /LABEL/segmentation HTTP/1.1" 500 Internal Server Error ERROR:    Exception in ASGI application Traceback (most recent call last):   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/uvicorn/protocols/http/h11_impl.py", line 396, in run_asgi     result = await app(self.scope, self.receive, self.send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__     return await self.app(scope, receive, send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/applications.py", line 199, in __call__     await super().__call__(scope, receive, send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/applications.py", line 112, in __call__     await self.middleware_stack(scope, receive, send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/middleware/errors.py", line 181, in __call__     raise exc from None   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/middleware/errors.py", line 159, in __call__     await self.app(scope, receive, _send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/exceptions.py", line 82, in __call__     raise exc from None   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/exceptions.py", line 71, in __call__     await self.app(scope, receive, sender)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/routing.py", line 580, in __call__     await route.handle(scope, receive, send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/routing.py", line 241, in handle     await self.app(scope, receive, send)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/starlette/routing.py", line 52, in app     response = await func(request)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/routing.py", line 218, in app     is_coroutine=is_coroutine,   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/routing.py", line 137, in serialize_response     return jsonable_encoder(response_content)   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/encoders.py", line 96, in jsonable_encoder     sqlalchemy_safe=sqlalchemy_safe,   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/encoders.py", line 113, in jsonable_encoder     sqlalchemy_safe=sqlalchemy_safe,   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/encoders.py", line 96, in jsonable_encoder     sqlalchemy_safe=sqlalchemy_safe,   File "/root/anaconda3/envs/yolat_seg_chw/lib/python3.7/site-packages/fastapi/encoders.py", line 141, in jsonable_encoder     raise ValueError(errors) ValueError: [TypeError("'numpy.int64' object is not iterable"), TypeError('vars() argument must have __dict__ attribute')] </code>

[TypeError("'numpy.int64' object is not iterable")，最终发现是因为python3中没有int64类型，只有int类型，而上面截图中?{'id': 0, 'type': 21中的0和21都是int64类型的，解决方法就是把这两个转换成int类型，然后错误解决。

bug2------"msg": "value is not a valid dict",

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<code>{     "detail": [         {             "loc": [                 "body"             ],             "msg": "value is not a valid dict",             "type": "type_error.dict"         }     ] }</code>

这是因为测试时的postman发送的时候选择了text格式,没有选择json格式.

 

参考文献：python FastApi 快速做api接口? ??https://blog.csdn.net/weixin_37254196/article/details/108143652