Install Vim 8 with Python, Python 3 support on Ubuntu 20.04

Build VIM with python3

# make sure you don't have any soon to be forgotten version of vim installed
$ sudo apt-get remove --purge vim vim-runtime vim-gnome vim-tiny vim-gui-common

# Install Deps
$ sudo apt-get install build-essential cmake
$ sudo apt-get install python3-dev

#Optional: so vim can be uninstalled again via `dpkg -r vim`
$ sudo apt-get install checkinstall

$ sudo rm -rf /usr/local/share/vim /usr/bin/vim

$ cd ~
$ git clone https://github.com/vim/vim
$ cd vim
$ git pull && git fetch

#In case Vim was already installed
$ make distclean && make clean
$ cd src
$ make distclean && make clean
$ cd ..

# Configure

$ `LDFLAGS="-rdynamic" ./configure \                                                                                                                                                                                                                                                                                                                                                  
  --enable-multibyte \
  --enable-python3interp \
  --with-python3-config-dir=/home/lv10/.pyenv/versions/3.8.6/lib/python3.8/config-3.8-x86_64-linux-gnu \
  --enable-cscope \
  --enable-largefile
  
# Install
$ make && sudo make install

great!

Thanks a lot!
I guess the backtip from line 26 is never closed in line 31?

I did not exactly follow this instruction. First, I did not use LDFLAGS=-rdynamic and in a second run, I tried to use --enable-python3interp=dynamic. The first one ended with a E370: Could not load library libpython3.11.so.1.0: libpython3.11.so.1.0: cannot open shared object file: No such file or directory error, the second with a undefined symbol: PyByteArray_Type error. So my advice is to stick to LDFLAGS=-rdynamic as also mentioned here.