[DB-SIG] Passing Unicode strings to Database

[Arthur Albano]

>From: Mikhail Astafiev <mikle at tomsk.net>
>Reply-To: Mikhail Astafiev <mikle at tomsk.net>
>To: db-sig at python.org, python-list at python.org
>Subject: [DB-SIG] Passing Unicode strings to Database
>Date: Wed, 6 Mar 2002 18:11:17 +0700
>
>[Env: Win2k, Python 1.5.2]
>
>Hi people!
>
>I have a string in Japanese encoded in UTF8. I need to put it into
>database in Unicode form.
>
>import dbi, odbc
>o=odbc.odbc(self.ODBC_name+"/"+self.ODBC_sql_username+"/"+self.ODBC_sql_password)
>c=o.cursor()
>runes = 
>UTF82Runes(string.replace(self.pr_table[row]["description"],"'","''"))
>operator="""INSERT INTO %s VALUES('%s','%s');"""%(self.ODBC_table,
>    int(self.pr_table[row]["pr_no"]),
>    runes.tostring())
>c.execute(operator)    # update database
>
>I'm getting the following error trace:
>
>Traceback (innermost last):
>   File "C:\dev\Products\MRATES~1\server.py", line 34, in ?
>     PR.sync_all()
>   File "C:\dev\Products\MRATES~1\PRML\code\prml.py", line 2837, in 
>sync_all
>     self.__sync_with_sql__(i)
>   File "C:\dev\Products\MRATES~1\PRML\code\prml.py", line 2797, in 
>__sync_with_sql__
>     c.execute(operator)    # update database
>TypeError: argument 1: expected string without null bytes, string found
>
>runes is array.array('H') containing Unicode string.
>
>Database string field has "ntext" type. How can I overcome this
>problem?
>
>Thanks in advance,
>Mick.

Mikhail,

If the problem is just conversion from UTF-8 to UNICODE, try this:

unicode(string_in_utf8_to_be_converted,'UTF-8')

It returns a unicode string.

Arthur Albano
"Just a Weekend Programmer"

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