问题
使用python部署独立环境小伙伴因为网速慢没少吃苦。下面的异常你一定见过，或者似曾相识
CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/linux-64/qt-5.12.5-hd8c4c69_1.tar.bz2> Elapsed: - An HTTP error occurred when trying to retrieve this URL. HTTP errors are often intermittent, and a simple retry will get you on your way. Collecting package metadata (current_repodata.json): failed
CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://conda.anaconda.org/conda-forge/linux-64/current_repodata.json> Elapsed: - An HTTP error occurred when trying to retrieve this URL. HTTP errors are often intermittent, and a simple retry will get you on your way. 'https://conda.anaconda.org/conda-forge/linux-64'
我就想好好的安装环境，干嘛让我吃闭门羹。
解决方法
Anaconda下载速度很慢，笔者换了Miniconda速度稍微好一些。但是一些资源minconda还是下载不到。经过最终寻找，笔者在清华大学镜像网站上找到设置中国镜像源的版本如下：
#1、备份本地配置 cp ~/.condarc ~/.condarc.bak vim ~/.condarc #2、删除原来的内容，填入以下 channels: - defaults show_channel_urls: true channel_alias: https://mirrors.tuna.tsinghua.edu.cn/anaconda default_channels: - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2 custom_channels: conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud #3、清除缓存 conda clean -i
结果
再次安装依赖包即成功，日志如下
(myenv) ubuntu@ubuntu:~$ conda install librosa -c conda-forge Collecting package metadata (current_repodata.json): done Solving environment: Warning: >10 possible package resolutions (only showing differing packages): - https://repo.anaconda.com/pkgs/main/linux-64/linux-64::_tflow_select-2.1.0-gpu, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libprotobuf-3.11.4-hd408876_0 - defaults/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::_tflow_select-2.1.0-gpu, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libprotobuf-3.11.4-hd408876_0 - defaults/linux-64::libprotobuf-3.11.4-hd408876_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::_tflow_select-2.1.0-gpu, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libgfortran-ng-7.3.0-hdf63c60_0 - defaults/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, defaults/linux-64::libprotobuf-3.11.4-hd408876_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::_tflow_select-2.1.0-gpu, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0 - defaults/linux-64::_tflow_select-2.1.0-gpu, defaults/linux-64::libprotobuf-3.11.4-hd408876_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libgfortran-ng-7.3.0-hdf63c60_0 - defaults/linux-64::_tflow_select-2.1.0-gpu, defaults/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, defaults/linux-64::libprotobuf-3.11.4-hd408876_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0 - defaults/linux-64::_tflow_select-2.1.0-gpu, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libprotobuf-3.11.4-hd408876_0 - defaults/linux-64::_tflow_select-2.1.0-gpu, defaults/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libprotobuf-3.11.4-hd408876_0 - defaults/linux-64::_tflow_select-2.1.0-gpu, defaults/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libprotobuf-3.11.4-hd408876_0 - defaults/linux-64::absl-py-0.9.0-py36_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::_tflow_select-2.1.0-gpu, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libgfortran-ng-7.3.0-hdf63c60_0, https://repo.anaconda.com/pkgs/main/linux-64/linux-64::libprotobuf-3.11.4-hd408876_0 ... and othedone ## Package Plan ## environment location: /home/ubuntu/miniconda3/envs/myenv added / updated specs: - librosa The following packages will be downloaded: package | build ---------------------------|----------------- qt-5.12.5 | hd8c4c69_1 99.2 MB conda-forge ------------------------------------------------------------ Total: 99.2 MB The following NEW packages will be INSTALLED: audioread conda-forge/linux-64::audioread-2.1.8-py36h9f0ad1d_2 bzip2 conda-forge/linux-64::bzip2-1.0.8-h516909a_2 ca-certificates conda-forge/linux-64::ca-certificates-2019.11.28-hecc5488_0 cffi conda-forge/linux-64::cffi-1.14.0-py36hd463f26_0 cycler conda-forge/noarch::cycler-0.10.0-py_2 dbus conda-forge/linux-64::dbus-1.13.6-he372182_0 decorator conda-forge/noarch::decorator-4.4.2-py_0 expat conda-forge/linux-64::expat-2.2.9-he1b5a44_2 ffmpeg conda-forge/linux-64::ffmpeg-4.2-h167e202_0 fontconfig conda-forge/linux-64::fontconfig-2.13.1-h86ecdb6_1001 freetype conda-forge/linux-64::freetype-2.10.1-he06d7ca_0 gettext conda-forge/linux-64::gettext-0.19.8.1-hc5be6a0_1002 glib conda-forge/linux-64::glib-2.58.3-py36hd3ed26a_1003 gmp conda-forge/linux-64::gmp-6.2.0-he1b5a44_2 gnutls conda-forge/linux-64::gnutls-3.6.5-hd3a4fd2_1002 gst-plugins-base conda-forge/linux-64::gst-plugins-base-1.14.5-h0935bb2_2 gstreamer conda-forge/linux-64::gstreamer-1.14.5-h36ae1b5_2 icu conda-forge/linux-64::icu-64.2-he1b5a44_1 joblib conda-forge/noarch::joblib-0.14.1-py_0 jpeg conda-forge/linux-64::jpeg-9c-h14c3975_1001 kiwisolver conda-forge/linux-64::kiwisolver-1.1.0-py36hdb11119_1 lame conda-forge/linux-64::lame-3.100-h14c3975_1001 ld_impl_linux-64 conda-forge/linux-64::ld_impl_linux-64-2.34-h53a641e_0 libblas conda-forge/linux-64::libblas-3.8.0-7_h6e990d7_netlib libcblas conda-forge/linux-64::libcblas-3.8.0-7_h6e990d7_netlib libclang conda-forge/linux-64::libclang-9.0.1-default_hde54327_0 libffi conda-forge/linux-64::libffi-3.2.1-he1b5a44_1007 libflac conda-forge/linux-64::libflac-1.3.3-he1b5a44_0 libiconv conda-forge/linux-64::libiconv-1.15-h516909a_1006 liblapack conda-forge/linux-64::liblapack-3.8.0-7_h6e990d7_netlib libllvm8 conda-forge/linux-64::libllvm8-8.0.1-hc9558a2_0 libllvm9 conda-forge/linux-64::libllvm9-9.0.1-hc9558a2_0 libogg conda-forge/linux-64::libogg-1.3.2-h516909a_1002 libpng conda-forge/linux-64::libpng-1.6.37-hed695b0_1 librosa conda-forge/noarch::librosa-0.7.2-py_0 libsndfile conda-forge/linux-64::libsndfile-1.0.28-he1b5a44_1000 libuuid conda-forge/linux-64::libuuid-2.32.1-h14c3975_1000 libvorbis conda-forge/linux-64::libvorbis-1.3.6-hebb1f50_1 libxcb conda-forge/linux-64::libxcb-1.13-h14c3975_1002 libxkbcommon conda-forge/linux-64::libxkbcommon-0.10.0-he1b5a44_0 libxml2 conda-forge/linux-64::libxml2-2.9.10-hee79883_0 llvmlite conda-forge/linux-64::llvmlite-0.31.0-py36hfa65bc7_1 matplotlib conda-forge/linux-64::matplotlib-3.2.1-0 matplotlib-base conda-forge/linux-64::matplotlib-base-3.2.1-py36hb8e4980_0 ncurses conda-forge/linux-64::ncurses-6.1-hf484d3e_1002 nettle conda-forge/linux-64::nettle-3.4.1-h1bed415_1002 nspr conda-forge/linux-64::nspr-4.25-he1b5a44_0 nss conda-forge/linux-64::nss-3.47-he751ad9_0 numba conda-forge/linux-64::numba-0.48.0-py36hb3f55d8_0 openh264 conda-forge/linux-64::openh264-1.8.0-hdbcaa40_1000 pcre conda-forge/linux-64::pcre-8.44-he1b5a44_0 pthread-stubs conda-forge/linux-64::pthread-stubs-0.4-h14c3975_1001 pycparser conda-forge/noarch::pycparser-2.20-py_0 pyparsing conda-forge/noarch::pyparsing-2.4.6-py_0 pyqt conda-forge/linux-64::pyqt-5.12.3-py36hcca6a23_1 pysoundfile conda-forge/noarch::pysoundfile-0.10.2-py_1001 python-dateutil conda-forge/noarch::python-dateutil-2.8.1-py_0 python_abi conda-forge/linux-64::python_abi-3.6-1_cp36m qt conda-forge/linux-64::qt-5.12.5-hd8c4c69_1 resampy conda-forge/noarch::resampy-0.2.2-py_0 scikit-learn conda-forge/linux-64::scikit-learn-0.22.2.post1-py36hcdab131_0 tornado conda-forge/linux-64::tornado-6.0.4-py36h8c4c3a4_1 x264 conda-forge/linux-64::x264-1!152.20180806-h14c3975_0 xorg-libxau conda-forge/linux-64::xorg-libxau-1.0.9-h14c3975_0 xorg-libxdmcp conda-forge/linux-64::xorg-libxdmcp-1.1.3-h516909a_0 The following packages will be UPDATED: certifi anaconda/pkgs/free::certifi-2016.2.28~ --> conda-forge::certifi-2019.11.28-py36h9f0ad1d_1 h5py anaconda/pkgs/free::h5py-2.7.0-np113p~ --> conda-forge::h5py-2.10.0-nompi_py36h513d04c_102 hdf5 anaconda/pkgs/free::hdf5-1.8.17-2 --> conda-forge::hdf5-1.10.5-nompi_h3c11f04_1104 numpy pkgs/main::numpy-1.13.3-py36ha266831_3 --> conda-forge::numpy-1.18.1-py36h7314795_1 openssl anaconda/pkgs/free::openssl-1.0.2l-0 --> conda-forge::openssl-1.1.1e-h516909a_0 python anaconda/pkgs/free::python-3.6.2-0 --> conda-forge::python-3.6.10-h9d8adfe_1009_cpython readline anaconda/pkgs/free::readline-6.2-2 --> conda-forge::readline-8.0-hf8c457e_0 scipy anaconda/pkgs/free::scipy-0.19.1-np11~ --> conda-forge::scipy-1.4.1-py36h921218d_0 sqlite anaconda/pkgs/free::sqlite-3.13.0-0 --> conda-forge::sqlite-3.30.1-hcee41ef_0 tk anaconda/pkgs/free::tk-8.5.18-0 --> conda-forge::tk-8.6.10-hed695b0_0 xz anaconda/pkgs/free::xz-5.2.3-0 --> conda-forge::xz-5.2.4-h516909a_1002 Proceed ([y]/n)? y Downloading and Extracting Packages qt-5.12.5 | 99.2 MB | ############################################################################################################################# | 100% Preparing transaction: done Verifying transaction: done Executing transaction: done