Port install mysqldb

You have been warned. String constant stating the type of parameter marker formatting expected by the interface. If a mapping object is used for conn. However, the API does not presently allow the specification of more than one style in paramstyle. Note that any literal percent signs in the query string passed to execute must be escaped, i.

Parameter placeholders can only be used to insert column values. They can not be used for other parts of SQL, such as table names, statements, etc. If the key is a Python type or class, then the value is a callable Python object usually a function taking two arguments value to convert, and the conversion dictionary which converts values of this type to a SQL literal string value.

This is initialized with reasonable defaults for most types. When creating a Connection object, you can pass your own type converter dictionary as a keyword parameter. Otherwise, it uses a copy of MySQLdb. Several non-standard types are returned as strings, which is how MySQL returns all columns. For more details, see the built-in module documentation. Connection objects are returned by the connect function. There are many more methods defined on the connection object which are MySQL-specific.

For more information on them, consult the internal documentation using pydoc. Calls stored procedure procname with the sequence of arguments in args. Returns the original arguments. Stored procedure support only works with MySQL This is not consistently possible with MySQL. Since a stored procedure may return zero or more result sets, it is impossible for MySQLdb to determine if there are result sets to fetch before the modified parmeters are accessible.

Compatibility note: It appears that the mere act of executing the CALL statement produces an empty result set, which appears after any result sets which might be generated by the stored procedure. Thus, you will always need to use nextset to advance result sets. Advances the cursor to the next result set, discarding the remaining rows in the current result set.

If there are no additional result sets, it returns None; otherwise it returns a true value. Why the tuple? Adding a comma, i. If you wanted more rows, you could use c. These do exactly what you think they do.

Both of these methods return a sequence of rows, or an empty sequence if there are no more rows. If you use a weird cursor class, the rows themselves might not be tuples. Note that in contrast to the above, c. Here we are inserting three rows of five values. And also note that we only included format strings for one row.

MySQLdb picks those out and duplicates them for each row. In general, it is probably wise to not directly interact with the DB API except for small applications. Databases, even SQL databases, vary widely in capabilities and may have non-standard features. The DB API does a good job of providing a reasonably portable interface but some methods are non-portable.

Specifically, the parameters accepted by connect are completely implementation-dependent. If you believe your application may need to run on several different databases, the author recommends the following approach, based on personal experience: Write a simplified API for your application which implements the specific queries and operations your application needs to perform. Implement this API as a base class which should be have few database dependencies, and then derive a subclass from this which implements the necessary dependencies.

In this way, porting your application to a new database should be a relatively simple matter of creating a new subclass, assuming the new database is reasonably standard. MySQLdb latest. The important parameters are: host name of host to connect to. Default: use the local host via a UNIX socket where applicable user user to authenticate as. Default: current effective user.

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