在由crontab运行时从Python套接字中获取错误，但在手动运行时不获取错误

我有一个运行Python脚本的shell脚本，shell脚本在启动时由crontab运行。我让shell脚本在每次运行时将错误记录到日志文件中。手动运行时，Python脚本运行良好且没有错误，Python脚本运行Discord bots顺便说一句。但是，当我重新启动Raspberry Pi并离开crontab运行shell脚本时，我收到以下错误消息： 对于上下文，有3个Python脚本，每个脚本在各自的文件夹中命名为“main.py”。下面是shell脚本，如果您想查看它：

#!/bin/bash

cd /home/pi/Desktop/logs
DATE="$(date "+%m%d%Y_%T")"
touch "log_file_$DATE"
LOGFILE=/home/pi/Desktop/logs/log_file_$DATE

(
    echo "-------------$(date "+%m/%d/%Y %T") : Starting work----------------"
    cd "/home/pi/Desktop/InviteBot-master/"
    /home/pi/Python-3.8.5/python main.py &
    cd "/home/pi/Desktop/CustomRoleBot-master"
    /home/pi/Python-3.8.5/python main.py &
    cd "/home/pi/Desktop/Private-channel-manager-master"
    /home/pi/Python-3.8.5/python main.py &
) >& $LOGFILE

sleep 86400
echo "-------------$(date "+%m/%d/%Y %T") : Restarting----------------"
sudo reboot

这是完整的日志输出（为了显示它，我用星号替换了bot令牌）

-----------11/04/2020 16:53:36：开始工作----------------
回溯（最近一次呼叫最后一次）：
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第964行，在创建直接连接中
hosts=wait asyncio.shield（self.\u resolve\u主机(
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第829行，在主机中
地址=等待\
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/resolver.py”，第29行，在resolve中
infos=等待自我。\u loop.getaddrinfo(
文件“/home/pi/Python-3.8.5/Lib/asyncio/base_events.py”，第825行，位于getaddrinfo中
返回等待自我运行执行器(
文件“/home/pi/Python-3.8.5/Lib/concurrent/futures/thread.py”，第57行，运行中
结果=self.fn（*self.args，**self.kwargs）
文件“/home/pi/Python-3.8.5/Lib/socket.py”，第918行，在getaddrinfo中
对于_socket.getaddrinfo（主机、端口、系列、类型、协议、标志）中的res：
socket.gaierror:[Errno-3]名称解析暂时失败
上述异常是以下异常的直接原因：
回溯（最近一次呼叫最后一次）：
文件“main.py”，第338行，在
client.run（令牌）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第678行，正在运行
返回future.result（）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第658行，在runner中
等待自我启动（*args，**kwargs）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第621行，在开始处
等待self.login（*args，bot=bot）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第472行，登录
等待self.http.static\u登录（token.strip（），bot=bot）
静态登录中的文件“/home/pi/.local/lib/python3.8/site packages/discord/http.py”，第288行
data=wait self.request（路由（'GET'，'/users/@me'））
文件“/home/pi/.local/lib/python3.8/site packages/discord/http.py”，第185行，在请求中
与self.\u session.request（方法、url、**kwargs）异步，作为r:
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/client.py”，第1012行，在__
self.\u resp=等待self.\u coro
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/client.py”，第480行，在请求中
conn=等待自检。\ U接头。连接(
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第523行，在connect中
proto=等待自我。创建连接（请求、跟踪、超时）
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第858行，在创建连接中
_，proto=等待自我。创建直接连接(
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第971行，在创建直接连接中
从exc引发客户端连接器错误（请求连接键，exc）
aiohttp.client_exceptions.clientconnector错误：无法连接到主机discord.com:443 ssl:default[名称解析暂时失败]
回溯（最近一次呼叫最后一次）：
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第964行，在创建直接连接中
hosts=wait asyncio.shield（self.\u resolve\u主机(
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第829行，在主机中
地址=等待\
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/resolver.py”，第29行，在resolve中
infos=等待自我。\u loop.getaddrinfo(
文件“/home/pi/Python-3.8.5/Lib/asyncio/base_events.py”，第825行，位于getaddrinfo中
返回等待自我运行执行器(
文件“/home/pi/Python-3.8.5/Lib/concurrent/futures/thread.py”，第57行，运行中
结果=self.fn（*self.args，**self.kwargs）
文件“/home/pi/Python-3.8.5/Lib/socket.py”，第918行，在getaddrinfo中
对于_socket.getaddrinfo（主机、端口、系列、类型、协议、标志）中的res：
socket.gaierror:[Errno-3]名称解析暂时失败
上述异常是以下异常的直接原因：
回溯（最近一次呼叫最后一次）：
文件“main.py”，第215行，在
client.run（令牌）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第678行，正在运行
返回future.result（）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第658行，在runner中
等待自我启动（*args，**kwargs）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第621行，在开始处
等待self.login（*args，bot=bot）
文件“/home/pi/.local/lib/python3.8/site packages/discord/client.py”，第472行，登录
等待self.http.static\u登录（token.strip（），bot=bot）
静态登录中的文件“/home/pi/.local/lib/python3.8/site packages/discord/http.py”，第288行
data=wait self.request（路由（'GET'，'/users/@me'））
文件“/home/pi/.local/lib/python3.8/site packages/discord/http.py”，第185行，在请求中
与self.\u session.request（方法、url、**kwargs）异步，作为r:
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/client.py”，第1012行，在__
self.\u resp=等待self.\u coro
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/client.py”，第480行，在请求中
conn=等待自检。\ U接头。连接(
文件“/home/pi/.local/lib/python3.8/site packages/aiohttp/connector.py”，第523行，在connect中
proto=等待自我。创建连接（请求、跟踪、超时）
F
-------------11/04/2020 16:53:36 : Starting work----------------
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 964, in _create_direct_connection
    hosts = await asyncio.shield(self._resolve_host(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 829, in _resolve_host
    addrs = await \
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/resolver.py", line 29, in resolve
    infos = await self._loop.getaddrinfo(
  File "/home/pi/Python-3.8.5/Lib/asyncio/base_events.py", line 825, in getaddrinfo
    return await self.run_in_executor(
  File "/home/pi/Python-3.8.5/Lib/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/pi/Python-3.8.5/Lib/socket.py", line 918, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "main.py", line 338, in <module>
    client.run(TOKEN)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 678, in run
    return future.result()
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 658, in runner
    await self.start(*args, **kwargs)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 621, in start
    await self.login(*args, bot=bot)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 472, in login
    await self.http.static_login(token.strip(), bot=bot)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/http.py", line 288, in static_login
    data = await self.request(Route('GET', '/users/@me'))
  File "/home/pi/.local/lib/python3.8/site-packages/discord/http.py", line 185, in request
    async with self.__session.request(method, url, **kwargs) as r:
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/client.py", line 1012, in __aenter__
    self._resp = await self._coro
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/client.py", line 480, in _request
    conn = await self._connector.connect(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 523, in connect
    proto = await self._create_connection(req, traces, timeout)
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 858, in _create_connection
    _, proto = await self._create_direct_connection(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 971, in _create_direct_connection
    raise ClientConnectorError(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host discord.com:443 ssl:default [Temporary failure in name resolution]
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 964, in _create_direct_connection
    hosts = await asyncio.shield(self._resolve_host(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 829, in _resolve_host
    addrs = await \
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/resolver.py", line 29, in resolve
    infos = await self._loop.getaddrinfo(
  File "/home/pi/Python-3.8.5/Lib/asyncio/base_events.py", line 825, in getaddrinfo
    return await self.run_in_executor(
  File "/home/pi/Python-3.8.5/Lib/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/pi/Python-3.8.5/Lib/socket.py", line 918, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "main.py", line 215, in <module>
    client.run(TOKEN)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 678, in run
    return future.result()
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 658, in runner
    await self.start(*args, **kwargs)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 621, in start
    await self.login(*args, bot=bot)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 472, in login
    await self.http.static_login(token.strip(), bot=bot)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/http.py", line 288, in static_login
    data = await self.request(Route('GET', '/users/@me'))
  File "/home/pi/.local/lib/python3.8/site-packages/discord/http.py", line 185, in request
    async with self.__session.request(method, url, **kwargs) as r:
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/client.py", line 1012, in __aenter__
    self._resp = await self._coro
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/client.py", line 480, in _request
    conn = await self._connector.connect(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 523, in connect
    proto = await self._create_connection(req, traces, timeout)
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 858, in _create_connection
    _, proto = await self._create_direct_connection(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 971, in _create_direct_connection
    raise ClientConnectorError(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host discord.com:443 ssl:default [Temporary failure in name resolution]
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 964, in _create_direct_connection
    hosts = await asyncio.shield(self._resolve_host(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 829, in _resolve_host
    addrs = await \
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/resolver.py", line 29, in resolve
    infos = await self._loop.getaddrinfo(
  File "/home/pi/Python-3.8.5/Lib/asyncio/base_events.py", line 825, in getaddrinfo
    return await self.run_in_executor(
  File "/home/pi/Python-3.8.5/Lib/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/pi/Python-3.8.5/Lib/socket.py", line 918, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "main.py", line 1134, in <module>
    client.run('*****')
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 678, in run
    return future.result()
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 658, in runner
    await self.start(*args, **kwargs)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 621, in start
    await self.login(*args, bot=bot)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/client.py", line 472, in login
    await self.http.static_login(token.strip(), bot=bot)
  File "/home/pi/.local/lib/python3.8/site-packages/discord/http.py", line 288, in static_login
    data = await self.request(Route('GET', '/users/@me'))
  File "/home/pi/.local/lib/python3.8/site-packages/discord/http.py", line 185, in request
    async with self.__session.request(method, url, **kwargs) as r:
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/client.py", line 1012, in __aenter__
    self._resp = await self._coro
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/client.py", line 480, in _request
    conn = await self._connector.connect(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 523, in connect
    proto = await self._create_connection(req, traces, timeout)
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 858, in _create_connection
    _, proto = await self._create_direct_connection(
  File "/home/pi/.local/lib/python3.8/site-packages/aiohttp/connector.py", line 971, in _create_direct_connection
    raise ClientConnectorError(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host discord.com:443 ssl:default [Temporary failure in name resolution]

while ! (ping -c 1 -W 1 1.2.3.4 | grep -q 'statistics'); do
    echo "Waiting for 1.2.3.4 - network interface might be down..."
    sleep 1
done