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Project | |
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adodbapi | |
A Python DB-API 2.0 (PEP-249) module that makes it easy to use Microsoft ADO | |
for connecting with databases and other data sources | |
using either CPython or IronPython. | |
Home page: <http://sourceforge.net/projects/adodbapi> | |
Features: | |
* 100% DB-API 2.0 (PEP-249) compliant (including most extensions and recommendations). | |
* Includes pyunit testcases that describe how to use the module. | |
* Fully implemented in Python. -- runs in Python 2.5+ Python 3.0+ and IronPython 2.6+ | |
* Licensed under the LGPL license, which means that it can be used freely even in commercial programs subject to certain restrictions. | |
* The user can choose between paramstyles: 'qmark' 'named' 'format' 'pyformat' 'dynamic' | |
* Supports data retrieval by column name e.g.: | |
for row in myCurser.execute("select name,age from students"): | |
print("Student", row.name, "is", row.age, "years old.") | |
* Supports user-definable system-to-Python data conversion functions (selected by ADO data type, or by column) | |
Prerequisites: | |
* C Python 2.7 or 3.5 or higher | |
and pywin32 (Mark Hammond's python for windows extensions.) | |
or | |
Iron Python 2.7 or higher. (works in IPy2.0 for all data types except BUFFER) | |
Installation: | |
* (C-Python on Windows): Install pywin32 ("pip install pywin32") which includes adodbapi. | |
* (IronPython on Windows): Download adodbapi from http://sf.net/projects/adodbapi. Unpack the zip. | |
Open a command window as an administrator. CD to the folder containing the unzipped files. | |
Run "setup.py install" using the IronPython of your choice. | |
NOTE: ........... | |
If you do not like the new default operation of returning Numeric columns as decimal.Decimal, | |
you can select other options by the user defined conversion feature. | |
Try: | |
adodbapi.apibase.variantConversions[adodbapi.ado_consts.adNumeric] = adodbapi.apibase.cvtString | |
or: | |
adodbapi.apibase.variantConversions[adodbapi.ado_consts.adNumeric] = adodbapi.apibase.cvtFloat | |
or: | |
adodbapi.apibase.variantConversions[adodbapi.ado_consts.adNumeric] = write_your_own_convertion_function | |
............ | |
notes for 2.6.2: | |
The definitive source has been moved to https://github.com/mhammond/pywin32/tree/master/adodbapi. | |
Remote has proven too hard to configure and test with Pyro4. I am moving it to unsupported status | |
until I can change to a different connection method. | |
whats new in version 2.6 | |
A cursor.prepare() method and support for prepared SQL statements. | |
Lots of refactoring, especially of the Remote and Server modules (still to be treated as Beta code). | |
The quick start document 'quick_reference.odt' will export as a nice-looking pdf. | |
Added paramstyles 'pyformat' and 'dynamic'. If your 'paramstyle' is 'named' you _must_ pass a dictionary of | |
parameters to your .execute() method. If your 'paramstyle' is 'format' 'pyformat' or 'dynamic', you _may_ | |
pass a dictionary of parameters -- provided your SQL operation string is formatted correctly. | |
whats new in version 2.5 | |
Remote module: (works on Linux!) allows a Windows computer to serve ADO databases via PyRO | |
Server module: PyRO server for ADO. Run using a command like= C:>python -m adodbapi.server | |
(server has simple connection string macros: is64bit, getuser, sql_provider, auto_security) | |
Brief documentation included. See adodbapi/examples folder adodbapi.rtf | |
New connection method conn.get_table_names() --> list of names of tables in database | |
Vastly refactored. Data conversion things have been moved to the new adodbapi.apibase module. | |
Many former module-level attributes are now class attributes. (Should be more thread-safe) | |
Connection objects are now context managers for transactions and will commit or rollback. | |
Cursor objects are context managers and will automatically close themselves. | |
Autocommit can be switched on and off. | |
Keyword and positional arguments on the connect() method work as documented in PEP 249. | |
Keyword arguments from the connect call can be formatted into the connection string. | |
New keyword arguments defined, such as: autocommit, paramstyle, remote_proxy, remote_port. | |
*** Breaking change: variantConversion lookups are simplified: the following will raise KeyError: | |
oldconverter=adodbapi.variantConversions[adodbapi.adoStringTypes] | |
Refactor as: oldconverter=adodbapi.variantConversions[adodbapi.adoStringTypes[0]] | |
License | |
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LGPL, see http://www.opensource.org/licenses/lgpl-license.php | |
Documentation | |
------------- | |
Look at adodbapi/quick_reference.md | |
http://www.python.org/topics/database/DatabaseAPI-2.0.html | |
read the examples in adodbapi/examples | |
and look at the test cases in adodbapi/test directory. | |
Mailing lists | |
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The adodbapi mailing lists have been deactivated. Submit comments to the | |
pywin32 or IronPython mailing lists. | |
-- the bug tracker on sourceforge.net/projects/adodbapi may be checked, (infrequently). | |
-- please use: https://github.com/mhammond/pywin32/issues | |