Ubuntu20.04安装onnx报错

Rachel2015

已于 2022-11-09 16:46:31 修改

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分类专栏： deepstream 文章标签： python 开发语言

于 2022-11-09 16:41:21 首次发布

本文链接：https://blog.youkuaiyun.com/Rachel321/article/details/127772698

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在Ubuntu20.04上使用pip3安装onnx时遇到网络连接错误，表现为`Network is unreachable`。问题根源在于pip源的连接证书验证失败。通过将pip源切换到阿里云镜像并设置为信任源，成功解决了安装问题。

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Ubuntu20.04使用pip安装onnx报如下错：

pip3 install onnx
  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xffffb54e2310>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /packages/e7/d0/41781c564fc46f886c73917e23aab7088040c0dab6a8158c0260b5f5a8bd/onnx-1.12.0-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
  WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xffffb54e2460>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /packages/e7/d0/41781c564fc46f886c73917e23aab7088040c0dab6a8158c0260b5f5a8bd/onnx-1.12.0-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
  WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xffffb54e2790>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /packages/e7/d0/41781c564fc46f886c73917e23aab7088040c0dab6a8158c0260b5f5a8bd/onnx-1.12.0-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
  WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xffffb54e27f0>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /packages/e7/d0/41781c564fc46f886c73917e23aab7088040c0dab6a8158c0260b5f5a8bd/onnx-1.12.0-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
  WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xffffb54e2940>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /packages/e7/d0/41781c564fc46f886c73917e23aab7088040c0dab6a8158c0260b5f5a8bd/onnx-1.12.0-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
ERROR: Could not install packages due to an EnvironmentError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Max retries exceeded with url: /packages/e7/d0/41781c564fc46f886c73917e23aab7088040c0dab6a8158c0260b5f5a8bd/onnx-1.12.0-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xffffb54e2ac0>: Failed to establish a new connection: [Errno 101] Network is unreachable'))

解决方法：

猜测和pip源链接有关，出现该错误信息是因为pip源连接证书验证失败，将pip源调整为国内的源并信任，改为如下后，可以正常安装。

sudo pip3 install onnx -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com

参考：

python WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None))_Coco_淳的博客-优快云博客