### Python 3.7 Windows
import requests
from urllib3 import encode_multipart_formdata

#params其它参数 images 图片列表
def uploadFiles(params,images):
    url = "接口url"
    headers = {}
    data = {}
    paramsList = []
    for key in params:
        paramsList.append((key,params[key]))
    for image in images:
        paramsList.append(("file",(image.get("filename"), open(image.get("filepath"), 'rb').read())))
    encode_data = encode_multipart_formdata(paramsList)
    data = encode_data[0]
    headers['Content-Type'] = encode_data[1]
    result = requests.post(url, headers=headers, data=data, proxies={})
    return result.text

if __name__ == '__main__':
    params = {
        "otherParam":"demo"
    }
    images = [
        {
            "filepath": r'E:\ITKouSyou\desktop\1.png',
            "filename": '1.png'
        },
        {
            "filepath": r'E:\ITKouSyou\desktop\2.png',
            "filename": '2.png'
        }
    ]
    print("uploadFiles:"+uploadFiles(params,images))

这个方法的关键在encode_multipart_formdata(paramsList)

之前传的参数是字典类似

{"file":[]} 会报以下错误，说明这种方式行不通，而字典不允许多个相同的key，所以这里使用了元组

将其他参数和file文件都添加到元祖里就可以成功了