Metadata-Version: 2.1
Name: sqlparams
Version: 3.0.0
Summary: Convert between various DB API 2.0 parameter styles.
Home-page: https://github.com/cpburnz/python-sql-parameters.git
Author: Caleb P. Burns
Author-email: cpburnz@gmail.com
License: MIT License
Description: SQL Params
        ==========
        
        *sqlparams* is a utility package for converting between various SQL
        parameter styles. This can simplify the use of SQL parameters in queries by
        allowing the use of named parameters where only ordinal are supported. Some
        `Python DB API 2.0`_ compliant modules only support the ordinal *qmark* or
        *format* style parameters (e.g., `pyodbc`_ only supports *qmark*). This
        package provides a helper class, `SQLParams`_, that is used to convert
        from any parameter style (*qmark*, *numeric*, *named*, *format*, *pyformat*;
        and the non-standard *numeric_dollar* and *named_dollar*), and have them
        safely converted to the desired parameter style.
        
        .. _`Python DB API 2.0`: http://www.python.org/dev/peps/pep-0249/
        .. _`pyodbc`: https://github.com/mkleehammer/pyodbc
        
        
        Tutorial
        --------
        
        You first create an `SQLParams`_ instance specifying the named
        parameter style you're converting from, and what ordinal style you're
        converting to. Let's convert from *named* to *qmark* style::
        
          >>> import sqlparams
          >>> query = sqlparams.SQLParams('named', 'qmark')
        
        Now, lets to convert a simple SQL SELECT query using the `SQLParams.format`_
        method which accepts an SQL query, and a *dict* of parameters::
        
          >>> sql, params = query.format('SELECT * FROM users WHERE name = :name;', {'name': "Thorin"})
        
        This returns the new SQL query using ordinal *qmark* parameters with the
        corresponding list of ordinal parameters, which can be passed to the
        `.execute()`_ method on a database cursor::
        
          >>> print sql
          SELECT * FROM users WHERE name = ?;
          >>> print params
          ['Thorin']
        
        .. _`.execute()`: http://www.python.org/dev/peps/pep-0249/#id15
        
        *tuple*\ s are also supported which allows for safe use of the SQL IN
        operator::
        
          >>> sql, params = query.format("SELECT * FROM users WHERE name IN :names;", {'names': ("Dori", "Nori", "Ori")})
          >>> print sql
          SELECT * FROM users WHERE name in (?,?,?);
          >>> print params
          ['Dori', 'Nori', 'Ori']
        
        You can also format multiple parameters for a single, shared query useful with
        the `.executemany()`_ method of a database cursor::
        
          >>> sql, manyparams = query.formatmany("UPDATE users SET age = :age WHERE name = :name;", [{'name': "Dwalin", 'age': 169}, {'name': "Balin", 'age': 178}])
          >>> print sql
          UPDATE users SET age = ? WHERE name = ?;
          >>> print manyparams
          [[169, 'Dwalin'], [178, 'Balin']]
        
        .. _`.executemany()`: http://www.python.org/dev/peps/pep-0249/#executemany
        
        Please note that if an expanded *tuple* is used in `SQLParams.formatmany`_,
        the tuple must be the same size in each of the parameter lists. Otherwise, you
        might well use `SQLParams.format`_ in a for-loop.
        
        
        Source
        ------
        
        The source code for *sqlparams* is available from the GitHub repo
        `cpburnz/python-sql-parameters`_.
        
        .. _`cpburnz/python-sql-parameters`: https://github.com/cpburnz/python-sql-parameters.git
        
        
        Installation
        ------------
        
        *sqlparams* can be installed from source with::
        
          python setup.py install
        
        *sqlparams* is also available for install through `PyPI`_::
        
          pip install sqlparams
        
        .. _`PyPI`: http://pypi.python.org/pypi/sqlparams
        
        
        Documentation
        -------------
        
        Documentation for *sqlparams* is available on `Read the Docs`_.
        
        .. _`Read the Docs`: https://python-sql-parameters.readthedocs.org
        
        .. _`SQLParams`: https://python-sql-parameters.readthedocs.io/en/latest/sqlparams.html#sqlparams.SQLParams
        .. _`SQLParams.format`: https://python-sql-parameters.readthedocs.io/en/latest/sqlparams.html#sqlparams.SQLParams.format
        .. _`SQLParams.formatmany`: https://python-sql-parameters.readthedocs.io/en/latest/sqlparams.html#sqlparams.SQLParams.formatmany
        
        
        Change History
        ==============
        
        3.0.0 (2020-04-04)
        ------------------
        
        - Major changes to internal implementation.
        - Support converting any parameter style to any parameter style (all named,
          numeric, and ordinal styles).
        - Renamed attribute `named` to `in_style` on `sqlparams.SQLParams`.
        - Renamed attribute `ordinal` to `out_style` on `sqlparams.SQLParams`.
        - Removed attributes `match` and `replace` from `sqlparams.SQLParams` which
          should have been private.
        - Named parameters must now be valid identifiers (can no longer start with a
          digit to help prevent incorrectly matching common strings such as
          datetimes). Fixes `Issue #4`_.
        - `Issue #7`_: Support dollar sign style for numeric and named parameters: ``
        
        .. _`Issue #4`: https://github.com/cpburnz/python-sql-parameters/issues/4
        .. _`Issue #7`: https://github.com/cpburnz/python-sql-parameters/issues/7
        
        
        2.0.0 (2020-02-26)
        ------------------
        
        - Drop support for EOL Python 2.7, 3.2, 3.3, 3.4.
        
        
        1.2.0 (2020-02-26)
        ------------------
        
        - Require setuptools.
        - Support up to Python 3.8.
        
        
        1.1.2 (2018-05-04)
        ------------------
        
        - Improved support for byte strings.
        
        
        1.1.1 (2017-09-07)
        ------------------
        
        - Fixed support for byte strings.
        
        
        1.1.0 (2017-08-30)
        ------------------
        
        - Support Python 3.2+.
        
        
        1.0.3 (2012-12-28)
        ------------------
        
        - Fixed documentation for `issue 1`_.
        
        .. _`issue 1`: https://github.com/cpburnz/python-sql-parameters/issues/1
        
        
        1.0.2 (2012-12-22)
        ------------------
        
        - Added sphinx documentation.
        
        
        1.0.1 (2012-12-20)
        ------------------
        
        - Fixed running test as a script.
        
        
        1.0.0 (2012-12-20)
        ------------------
        
        - Initial release.
        
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Database
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: Utilities
Requires-Python: >=3.5
Description-Content-Type: text/x-rst
