export PATH=/usr/local/python/python390/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/python/python390/lib:$LD_LIBRARY_PATH
python --version
pip --version
cur_pkg_list=$(pip freeze|grep -v '@'|cut -d'=' -f1)
echo $cur_pkg_list
#echo $cur_pkg_list|sed 's# #|#g'
echo "333"
install_pkg_list=$(cat py39pkg.txt|grep -Ev "$(echo $cur_pkg_list|sed 's# #|#g')"|grep -v '@')
echo $install_pkg_list
echo "444"
for pkg in $install_pkg_list; do
    pip install $pkg
done
pip freeze > py39pkg_new.txt
cat py39pkg_new.txt
