SS928板子上使用Python运行yoloV5-解决pip安装包报错问题（3）

原因分析

/data/Mix210/apps/python3 # ./bin/python3 -m pip install requests -i https://mirrors.aliyun.com/pypi/simple --trust-host mirrors.aliyun.com
WARNING: The directory '/root/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f7dd81310>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/requests/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f7dd81550>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/requests/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f7dd818d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/requests/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f7dd81c10>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/requests/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7f7dd15110>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/requests/
ERROR: Could not find a version that satisfies the requirement requests (from versions: none)
ERROR: No matching distribution found for requests

这个原因是网络不通，如下：

/etc/init.d # ping www.baidu.com
ping: bad address 'www.baidu.com'

配置网络环境

https://www.ebaina.com/articles/140000017022

pip 安装测试

/data/Mix210/apps/python3 # ./bin/python3 -m pip install requests -i https://mirrors.aliyun.com/pypi/simple --t
rusted-host mirrors.aliyun.com
WARNING: The directory '/root/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
Looking in indexes: https://mirrors.aliyun.com/pypi/simple
/data/Mix210/apps/python3/lib/python3.7/site-packages/pip/_vendor/urllib3/connection.py:387: SystemTimeWarning: System time is way off (before 2022-01-01). This will probably lead to SSL verification errors
  SystemTimeWarning,
Collecting requests
  Downloading https://mirrors.aliyun.com/pypi/packages/70/8e/0e2d847013cb52cd35b38c009bb167a1a26b2ce6cd6965bf26b47bc0bf44/requests-2.31.0-py3-none-any.whl (62 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 62.6/62.6 kB 10.6 MB/s eta 0:00:00
Requirement already satisfied: charset-normalizer<4,>=2 in ./lib/python3.7/site-packages (from requests) (3.3.2)
Requirement already satisfied: idna<4,>=2.5 in ./lib/python3.7/site-packages (from requests) (3.6)
Requirement already satisfied: certifi>=2017.4.17 in ./lib/python3.7/site-packages (from requests) (2023.11.17)
Requirement already satisfied: urllib3<3,>=1.21.1 in ./lib/python3.7/site-packages (from requests) (2.0.7)
Installing collected packages: requests
Successfully installed requests-2.31.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
/data/Mix210/apps/python3/lib/python3.7/site-packages/pip/_vendor/urllib3/connection.py:387: SystemTimeWarning: System time is way off (before 2022-01-01). This will probably lead to SSL verification errors
  SystemTimeWarning,

[notice] A new release of pip is available: 23.0.1 -> 23.3.2
[notice] To update, run: /data/Mix210/apps/python3/bin/python3 -m pip install --upgrade pip

虽然有告警，但是安装成功