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error while installing psycopg2 on ubuntu 20.04

$ sudo apt-get install libpq-dev python-dev

packages required to install psycopg2

pip install psycopg2-binary

pip install psycopg2 error fedora

sudo dnf install python-devel postgresql-devel rpm-build

pip install psycopg2

psycopg2 error install

sudo apt install libpq-dev python3-dev
sudo apt install build-essential

psycopg2 error pip install error

sudo apt install libpq-dev

error installing psycopg2

	-(option1) Incase you encounter an error installing psycopg2,
      try installing the binaries instead:
pip install psycopg2-binary

	-or (option2) downgrade the header file libpq5
sudo aptitude install libpq-dev   # aptitude is recommended since it is better when it comes to resolving dependencies

accept the solution that recommends downgrading libpq5(usually the second recommended action)

pip install psycopg2
sudo apt-get install -y libpq5      # undo the downgrade

psycopg2 error

$ pip install psycopg2-binary