Igor Elyas wrote:
Interesting info:
1. Calling unicode('russian symbols') throws "'ascii' codec can't
decode byte 0 in position 0: ordinal not in range"
In IronPython calling unicode is the same as calling str. Calling
unicode on a bytestring with non-ascii characters in it would also blow
up in CPython.
Michael
2.
IronPython 2.0 (2.0.0.0) on .NET 2.0.50727.3082
Type "help", "copyright", "credits" or "license" for more information.
str(u''russian symbols'.encode('cp1251'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "mscorlib", line unknown, in GetString
File "mscorlib", line unknown, in GetChars
File "mscorlib", line unknown, in Fallback
File "mscorlib", line unknown, in Throw
UnicodeDecodeError: ('unknown', u'\xef', 0, 1, '')
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
str(u''russian symbols'.encode('cp1251'))
'\xef\xf0\xe8\xe2\xe5\xf2'
--------------------------------------------------
From: "Michael Foord" <[email protected]>
Sent: Wednesday, March 25, 2009 10:03 PM
To: "Discussion of IronPython" <[email protected]>
Subject: Re: [IronPython] Embedding & Charsets
Igor Elyas wrote:
Ops
Deep in code on returned value used Python str() function and
looks like:
str(self._reader.GetString(self._idx))
You can't call str on a string if it contains non-ascii characters. :-)
(and why would you need to...)
Michael
That correct situation ?
*From:* Igor Elyas <mailto:[email protected]>
*Sent:* Wednesday, March 25, 2009 9:17 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* [IronPython] Embedding & Charsets
Hello
I'm use IronPython 2.0.1 as embedded interpreter for read data from
database.
Code for create Engine:
fEngine = Python.CreateEngine();
Ops = fEngine.CreateOperations();
// core libs
fEngine.Runtime.LoadAssembly(typeof(Decimal).Assembly);
fEngine.Runtime.LoadAssembly(typeof(IValue).Assembly);
// loading ADO.NET driver assemblies
LoadAssemblies(from v in
EtlBaseCfg.BaseCfg.Element("dlls").Elements("dll") select v.Value);
After that, I use generated Ipy class for read one value from
specific IDbDataReader:
from ETL.Common.pipes import IValuePipe
class SelectExtractor(IValuePipe):
def __init__(self,adoreader,originId,storage):
self._name = originId
self._reader = adoreader
self._idx = adoreader.GetOrdinal(self._name)
self._transport = storage
def Do(self, pydict):
val = self._transport.Clone()
if not self._reader.IsDBNull(self._idx):
val.Data = self._reader.GetString(self._idx)
if pydict.ContainsKey(self._name):
pydict[self._name] = val
else:
pydict.Add(self._name,val)
This operation return string with Russian symbols and I get
Exception: "'ascii' codec can't decode byte 0 in position 0: ordinal
not in range"
How I can enable unicode .NET strings ?
Looks like I not initialize IronPython correctly, because this code
in Ipy console work fine with Russian charset (Russian Windows), but
not sure about other charsets. I need use .NET unicode strings.
Best regards
Igor Elyas
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