sqlalchemy-postgres-copy

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Description: ======================== sqlalchemy-postgres-copy ========================

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    **sqlalchemy-postgres-copy** is a utility library that wraps the PostgreSQL COPY_ command for use with SQLAlchemy. The COPY command offers performant exports from PostgreSQL to TSV, CSV, or binary files, as well as imports from files to PostgresSQL tables. Using COPY is typically much more efficient than importing and exporting data using Python.
    
    Installation
    ============
    
    ::
    
        pip install -U sqlalchemy-postgres-copy
    
    Usage
    =====
    
    ::
    
        import postgres_copy
        from models import Album, session, engine
    
        # Export a CSV containing all Queen albums
        query = session.query(Album).filter_by(artist='Queen')
        with open('/path/to/file.csv', 'w') as fp:
            postgres_copy.copy_from(query, fp, engine, format='csv', header=True)
    
        # Import a tab-delimited file
        with open('/path/to/file.tsv') as fp:
            postgres_copy.copy_to(fp, Album, engine)
    
    .. _COPY: http://www.postgresql.org/docs/9.5/static/sql-copy.html
    

Keywords: sqlalchemy,postgresql Platform: UNKNOWN Classifier: Development Status :: 2 - Pre-Alpha Classifier: Intended Audience :: Developers Classifier: License :: OSI Approved :: MIT License Classifier: Natural Language :: English Classifier: Programming Language :: Python :: 2 Classifier: Programming Language :: Python :: 2.7 Classifier: Programming Language :: Python :: 3 Classifier: Programming Language :: Python :: 3.3 Classifier: Programming Language :: Python :: 3.4