url = ‘http://httpbin.org/post‘
files = {‘file‘: open(‘report.xls‘, ‘rb‘)}
r = requests.post(url, files=files)
#你可以显式地设置文件名，文件类型和请求头：
url = ‘http://httpbin.org/post‘
files = {‘file‘: (‘report.xls‘, open(‘report.xls‘, ‘rb‘), ‘application/vnd.ms-excel‘, {‘Expires‘: ‘0‘})}
r = requests.post(url, files=files)
原文：https://www.cnblogs.com/xiaobaibailongma/p/12346209.html