For the sake of simplicity, here is the method of downgrading
# Use conda to search for the installable version
conda search scipy
Loading channels: done
# Name Version Build Channel
scipy 0.19.1 py27_nomklhda24f63_3 pkgs/main
scipy 0.19.1 py27h1edc525_3 pkgs/main
scipy 0.19.1 py35_nomklh614202b_3 pkgs/main
scipy 0.19.1 py35ha8f041b_3 pkgs/main
scipy 0.19.1 py36_nomklh59deb5f_3 pkgs/main
scipy 0.19.1 py36h9976243_3 pkgs/main
scipy 1.0.0 py27_nomklhc4f40eb_0 pkgs/main
scipy 1.0.0 py27hf5f0f52_0 pkgs/main
scipy 1.0.0 py35_nomklhb72a26a_0 pkgs/main
scipy 1.0.0 py35hcbbe4a2_0 pkgs/main
scipy 1.0.0 py36_nomklh9d91e6a_0 pkgs/main
scipy 1.0.0 py36hbf646e7_0 pkgs/main
scipy 1.0.1 py27_nomklh9d22d0a_0 pkgs/main
scipy 1.0.1 py27hfc37229_0 pkgs/main
scipy 1.0.1 py35_nomklh9d22d0a_0 pkgs/main
scipy 1.0.1 py35hfc37229_0 pkgs/main
scipy 1.0.1 py36_nomklh9d22d0a_0 pkgs/main
scipy 1.0.1 py36hfc37229_0 pkgs/main
scipy 1.1.0 py27_nomklh9c1e066_0 pkgs/main
scipy 1.1.0 py27_nomklh9d22d0a_0 pkgs/main
scipy 1.1.0 py27_nomklhb74e8f7_0 pkgs/main
scipy 1.1.0 py27h7c811a0_2 pkgs/main
scipy 1.1.0 py27h9b217d5_1 pkgs/main
scipy 1.1.0 py27hc49cb51_0 pkgs/main
scipy 1.1.0 py27hd20e5f9_0 pkgs/main
scipy 1.1.0 py27he2b7bc3_1 pkgs/main
scipy 1.1.0 py27he2b7bc3_2 pkgs/main
scipy 1.1.0 py27hfa4b5c9_1 pkgs/main
scipy 1.1.0 py27hfc37229_0 pkgs/main
scipy 1.1.0 py35_nomklh9d22d0a_0 pkgs/main
scipy 1.1.0 py35h9b217d5_1 pkgs/main
scipy 1.1.0 py35hd20e5f9_0 pkgs/main
scipy 1.1.0 py35he2b7bc3_1 pkgs/main
scipy 1.1.0 py35hfa4b5c9_1 pkgs/main
scipy 1.1.0 py35hfc37229_0 pkgs/main
scipy 1.1.0 py36_nomklh9c1e066_0 pkgs/main
scipy 1.1.0 py36_nomklh9d22d0a_0 pkgs/main
scipy 1.1.0 py36h7c811a0_2 pkgs/main
scipy 1.1.0 py36h9b217d5_1 pkgs/main
scipy 1.1.0 py36hc49cb51_0 pkgs/main
scipy 1.1.0 py36hd20e5f9_0 pkgs/main
scipy 1.1.0 py36he2b7bc3_1 pkgs/main
scipy 1.1.0 py36he2b7bc3_2 pkgs/main
scipy 1.1.0 py36hfa4b5c9_1 pkgs/main
scipy 1.1.0 py36hfc37229_0 pkgs/main
scipy 1.1.0 py37_nomklh9c1e066_0 pkgs/main
scipy 1.1.0 py37h7c811a0_2 pkgs/main
scipy 1.1.0 py37h9b217d5_1 pkgs/main
scipy 1.1.0 py37hc49cb51_0 pkgs/main
scipy 1.1.0 py37he2b7bc3_1 pkgs/main
scipy 1.1.0 py37he2b7bc3_2 pkgs/main
scipy 1.1.0 py37hfa4b5c9_1 pkgs/main
scipy 1.2.0 py27h7c811a0_0 pkgs/main
scipy 1.2.0 py27he2b7bc3_0 pkgs/main
scipy 1.2.0 py36h7c811a0_0 pkgs/main
scipy 1.2.0 py36he2b7bc3_0 pkgs/main
scipy 1.2.0 py37h7c811a0_0 pkgs/main
scipy 1.2.0 py37he2b7bc3_0 pkgs/main
scipy 1.2.1 py27h7c811a0_0 pkgs/main
scipy 1.2.1 py27he2b7bc3_0 pkgs/main
scipy 1.2.1 py36h7c811a0_0 pkgs/main
scipy 1.2.1 py36he2b7bc3_0 pkgs/main
scipy 1.2.1 py37h7c811a0_0 pkgs/main
scipy 1.2.1 py37he2b7bc3_0 pkgs/main
scipy 1.3.0 py36h7c811a0_0 pkgs/main
scipy 1.3.0 py36he2b7bc3_0 pkgs/main
scipy 1.3.0 py37h7c811a0_0 pkgs/main
scipy 1.3.0 py37he2b7bc3_0 pkgs/main
scipy 1.3.1 py36h7c811a0_0 pkgs/main
scipy 1.3.1 py36he2b7bc3_0 pkgs/main
scipy 1.3.1 py37h7c811a0_0 pkgs/main
scipy 1.3.1 py37he2b7bc3_0 pkgs/main
scipy 1.3.1 py38h7c811a0_0 pkgs/main
scipy 1.3.1 py38he2b7bc3_0 pkgs/main
scipy 1.3.2 py36h7c811a0_0 pkgs/main
scipy 1.3.2 py36he2b7bc3_0 pkgs/main
scipy 1.3.2 py37h7c811a0_0 pkgs/main
scipy 1.3.2 py37he2b7bc3_0 pkgs/main
scipy 1.3.2 py38h7c811a0_0 pkgs/main
scipy 1.3.2 py38he2b7bc3_0 pkgs/main
scipy 1.4.1 py36h0b6359f_0 pkgs/main
scipy 1.4.1 py36habc2bb6_0 pkgs/main
scipy 1.4.1 py37h0b6359f_0 pkgs/main
scipy 1.4.1 py37habc2bb6_0 pkgs/main
scipy 1.4.1 py38h0b6359f_0 pkgs/main
scipy 1.4.1 py38habc2bb6_0 pkgs/main
scipy 1.5.0 py36h0b6359f_0 pkgs/main
scipy 1.5.0 py36habc2bb6_0 pkgs/main
scipy 1.5.0 py37h0b6359f_0 pkgs/main
scipy 1.5.0 py37habc2bb6_0 pkgs/main
scipy 1.5.0 py38h0b6359f_0 pkgs/main
scipy 1.5.0 py38habc2bb6_0 pkgs/main
scipy 1.5.2 py36h0b6359f_0 pkgs/main
scipy 1.5.2 py36habc2bb6_0 pkgs/main
scipy 1.5.2 py37h0b6359f_0 pkgs/main
scipy 1.5.2 py37habc2bb6_0 pkgs/main
scipy 1.5.2 py38h0b6359f_0 pkgs/main
scipy 1.5.2 py38habc2bb6_0 pkgs/main
scipy 1.5.2 py39h91f5cce_0 pkgs/main
scipy 1.5.2 py39hf56f3a7_0 pkgs/main
scipy 1.6.0 py37h91f5cce_0 pkgs/main
scipy 1.6.0 py37hf56f3a7_0 pkgs/main
scipy 1.6.0 py38h91f5cce_0 pkgs/main
scipy 1.6.0 py38hf56f3a7_0 pkgs/main
scipy 1.6.0 py39h91f5cce_0 pkgs/main
scipy 1.6.0 py39hf56f3a7_0 pkgs/main
scipy 1.6.1 py37h91f5cce_0 pkgs/main
scipy 1.6.1 py37hf56f3a7_0 pkgs/main
scipy 1.6.1 py38h91f5cce_0 pkgs/main
scipy 1.6.1 py38hf56f3a7_0 pkgs/main
scipy 1.6.1 py39h91f5cce_0 pkgs/main
scipy 1.6.1 py39hf56f3a7_0 pkgs/main
scipy 1.6.2 py37h91f5cce_0 pkgs/main
scipy 1.6.2 py37had2a1c9_1 pkgs/main
scipy 1.6.2 py37hf56f3a7_0 pkgs/main
scipy 1.6.2 py37hf56f3a7_1 pkgs/main
scipy 1.6.2 py38h91f5cce_0 pkgs/main
scipy 1.6.2 py38had2a1c9_1 pkgs/main
scipy 1.6.2 py38hf56f3a7_0 pkgs/main
scipy 1.6.2 py38hf56f3a7_1 pkgs/main
scipy 1.6.2 py39h91f5cce_0 pkgs/main
scipy 1.6.2 py39had2a1c9_1 pkgs/main
scipy 1.6.2 py39hf56f3a7_0 pkgs/main
scipy 1.6.2 py39hf56f3a7_1 pkgs/main
scipy 1.7.1 py37h292c36d_2 pkgs/main
scipy 1.7.1 py37hc65b3f8_2 pkgs/main
scipy 1.7.1 py38h292c36d_2 pkgs/main
scipy 1.7.1 py38hc65b3f8_2 pkgs/main
scipy 1.7.1 py39h292c36d_2 pkgs/main
scipy 1.7.1 py39hc65b3f8_2 pkgs/main
Uninstall the current version
# Since it was installed by pip, use pip to uninstall
pip uninstall scipy
Found existing installation: scipy 1.5.4
Uninstalling scipy-1.5.4:
Would remove:
/home/zql/anaconda3/envs/torch04/lib/python3.6/site-packages/scipy-1.5.4.dist-info/*
/home/zql/anaconda3/envs/torch04/lib/python3.6/site-packages/scipy.libs/libgfortran-ed201abd.so.3.0.0
/home/zql/anaconda3/envs/torch04/lib/python3.6/site-packages/scipy.libs/libopenblasp-r0-085ca80a.3.9.so
/home/zql/anaconda3/envs/torch04/lib/python3.6/site-packages/scipy/*
Proceed (Y/n)? y
Successfully uninstalled scipy-1.5.4
Install lower version
The specific installation command is [Successfully resolved]
conda install scipy=0.19.1