Psycopg - PostgreSQL database adapter for Python - Psycopg documentation
Psycopg 2.9.7 documentation
Psycopg - PostgreSQL database adapter for Python
      
       Psycopg
      
      is the most popular
      
       PostgreSQL
      
      database adapter for the
      
       Python
      
      programming language.  Its main features are the complete implementation of
the Python
      
       DB API 2.0
      
      specification and the thread safety (several threads can
share the same connection). It was designed for heavily multi-threaded
applications that create and destroy lots of cursors and make a large number
of concurrent
      
       
        INSERT
       
      
      s or
      
       
        UPDATE
       
      
      s.
     
Psycopg 2 is mostly implemented in C as a libpq wrapper, resulting in being both efficient and secure. It features client-side and server-side cursors, asynchronous communication and notifications , COPY support. Many Python types are supported out-of-the-box and adapted to matching PostgreSQL data types ; adaptation can be extended and customized thanks to a flexible objects adaptation system .
Psycopg 2 is both Unicode and Python 3 friendly.
Contents
- Installation
 - Basic module usage
 - 
        
         The
         
psycopg2module content - 
        
         The
         
connectionclass - 
        
         The
         
cursorclass - More advanced topics
 - 
        
         
psycopg2.extensions- Extensions to the DB API - 
        
         
psycopg2.extras- Miscellaneous goodies for Psycopg 2 - 
        
         
psycopg2.errors- Exception classes mapping PostgreSQL errors - 
        
         
psycopg2.sql- SQL string composition - 
        
         
psycopg2.tz-tzinfoimplementations for Psycopg 2 - 
        
         
psycopg2.pool- Connections pooling - 
        
         
psycopg2.errorcodes- Error codes defined by PostgreSQL - Frequently Asked Questions
 - Release notes
 - License
 
Indices and tables