循环调用requests.get时出现socket closed错误，该如何解决？

在树莓派上循环调用urequest1.get（对应requests.get逻辑）时出现socket closed错误，使用的urequest1.py为第三方实现的轻量HTTP请求模块。

报错日志 #

waiting for connection...
connected ip = 192.168.50.17
Start reading http
Socket closed
Traceback (most recent call last):
File "", line 36, in
File "", line 22, in getSignSession
File "urequest1.py", line 250, in get
File "urequest1.py", line 131, in request
KeyboardInterrupt

代码片段 #

import urequest1
import urequests
import ujson
from machine import Pin
import utime
import gc
import netman

def getSignSession():
    headers = {
            'Host': ' app.workato.com',
            'User-Agent': ' Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:105.0) Gecko/20100101 Firefox/105.0',
            'Accept': ' application/json, text/plain, */*',
            'Accept-Language': ' en-US,en;q=0.5',
            'Referer': ' https://app.workato.com/users/sign_in',
            'Content-Type': ' application/json',
            'Connection': ' keep-alive',
            'Sec-Fetch-Dest': ' empty',
            'Sec-Fetch-Mode': ' cors',
            'Sec-Fetch-Site': ' same-origin'
        }
    response = urequest1.get('https://app.workato.com/web_api/auth_user.json', headers=headers)
    #x_csrf_token = response.cookies["XSRF-TOKEN"]

while True:
    try:
        getSignSession()
    except OSError as e:
        continue

1. 强制释放连接资源 #

轻量HTTP库通常不会自动关闭连接，循环调用会导致socket资源耗尽。修改getSignSession函数，每次请求后手动关闭响应对象：

def getSignSession():
    # ... 原有代码 ...
    response = urequest1.get(...)
    # 若需要处理响应数据，在此处完成
    response.close()  # 手动关闭连接

同时将headers中的Connection字段改为close，强制服务器在请求结束后关闭连接：

'Connection': ' close',

2. 添加请求间隔 #

无间隔循环请求会触发服务器限流机制，直接关闭socket。在循环中添加延时：

while True:
    try:
        getSignSession()
        utime.sleep(5)  # 间隔5秒，根据实际场景调整
    except OSError as e:
        utime.sleep(2)  # 出错后稍作等待再重试
        continue

3. 替换HTTP库测试 #

若urequest1存在socket处理缺陷，可替换为官方urequests模块验证：

# 替换urequest1.get为urequests.get
response = urequests.get('https://app.workato.com/web_api/auth_user.json', headers=headers)
response.close()

4. 优化内存管理 #

树莓派（尤其是MicroPython环境）内存有限，循环调用易引发内存泄漏。每次请求后手动触发垃圾回收：

def getSignSession():
    # ... 原有代码 ...
    response.close()
    gc.collect()  # 主动回收内存

内容的提问来源于stack exchange，提问作者user18566545