Loading a Driver

Before using the driver, perform the following operations:
1. Decompress the driver package of the corresponding version and copy psycopg2 to the site-packages folder in the Python installation directory as the root user.
```
tar zxvf xxxx-Python.tar.gz
su root
cp psycopg2 $(python3 -c 'import site; print(site.getsitepackages()[0])') -r
```
2. Change the psycopg2 directory permission to 755.
```
chmod 755 $(python3 -c 'import site; print(site.getsitepackages()[0])')/psycopg2 -R
```
3. Add the psycopg2 directory to the environment variable $PYTHONPATH and validate it.
```
export PYTHONPATH=$(python3 -c 'import site; print(site.getsitepackages()[0])'):$PYTHONPATH
```
4. For non-database users, configure the lib directory in LD_LIBRARY_PATH after decompression.
```
export LD_LIBRARY_PATH=path/to/lib:$LD_LIBRARY_PATH
```
Load the database driver before creating a database connection.
```
import  psycopg2
```