Re: Encoding problem - or bug in couchdb-0.8-py2.7.egg??

2010-09-20 Thread Diez B. Roggisch
Ian Hobson i...@ianhobson.co.uk writes:

 Hi all,

 I have hit a problem and I don't know enough about python to diagnose
 things further. Trying to use couchDB from Python. This script:-

 # coding=utf8
 import couchdb
 from couchdb.client import Server
 server = Server()
 dbName = 'python-tests'
 try:
 db = server.create(dbName)
 except couchdb.PreconditionFailed:
 del server[dbName]
 db = server.create(dbName)
 doc_id, doc_rev = db.save({'type': 'Person', 'name': 'John Doe'})

 Gives this traceback:-

 D:\work\C-U-Bpython tes1.py
 Traceback (most recent call last):
   File tes1.py, line 11, in module
 doc_id, doc_rev = db.save({'type': 'Person', 'name': 'John Doe'})
   File
 C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\client.py,
 line 407, in save
 _, _, data = func(body=doc, **options)
   File
 C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
 line 399, in post_json
 status, headers, data = self.post(*a, **k)
   File
 C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
 line 381, in post
 **params)
   File
 C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
 line 419, in _request
 credentials=self.credentials)
   File
 C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
 line 310, in request
 raise ServerError((status, error))
 couchdb.http.ServerError: (400, ('bad_request', 'invalid UTF-8 JSON'))

 D:\work\C-U-B

 Why? I've tried adding u to the strings, and removing the # coding
 line, and I still get the same error.

Sounds cargo-cultish. I suggest you read the python introduction on
unicode.

 http://docs.python.org/howto/unicode.html

For your actual problem, I have difficulties seeing how it can happen
with the above data - frankly because there is nothing outside the
ascii-range of data, so there is no reason why anything could be wrong
encoded.

But googling the error-message reveals that there seem to be totally
unrelated reasons for this:

  http://sindro.me/2010/4/3/couchdb-invalid-utf8-json

Maybe using something like tcpmon or ethereal to capture the actual
HTTP-request helps to see where the issue comes from.

Diez
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Re: Encoding problem - or bug in couchdb-0.8-py2.7.egg??

2010-09-20 Thread Ian

 Thanks Diez,

Removing, rebooting and installing the latest version solved the 
problem.  :)


Your google-foo is better than mine.  Google had not turned that up for me.

Thanks again

Regards

Ian



On 20/09/2010 17:00, Diez B. Roggisch wrote:

Ian Hobsoni...@ianhobson.co.uk  writes:


Hi all,

I have hit a problem and I don't know enough about python to diagnose
things further. Trying to use couchDB from Python. This script:-

# coding=utf8
import couchdb
from couchdb.client import Server
server = Server()
dbName = 'python-tests'
try:
 db = server.create(dbName)
except couchdb.PreconditionFailed:
 del server[dbName]
 db = server.create(dbName)
doc_id, doc_rev = db.save({'type': 'Person', 'name': 'John Doe'})

Gives this traceback:-

D:\work\C-U-Bpython tes1.py
Traceback (most recent call last):
   File tes1.py, line 11, inmodule
 doc_id, doc_rev = db.save({'type': 'Person', 'name': 'John Doe'})
   File
C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\client.py,
line 407, in save
 _, _, data = func(body=doc, **options)
   File
C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
line 399, in post_json
 status, headers, data = self.post(*a, **k)
   File
C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
line 381, in post
 **params)
   File
C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
line 419, in _request
 credentials=self.credentials)
   File
C:\Python27\lib\site-packages\couchdb-0.8-py2.7.egg\couchdb\http.py,
line 310, in request
 raise ServerError((status, error))
couchdb.http.ServerError: (400, ('bad_request', 'invalid UTF-8 JSON'))

D:\work\C-U-B

Why? I've tried adding u to the strings, and removing the # coding
line, and I still get the same error.

Sounds cargo-cultish. I suggest you read the python introduction on
unicode.

  http://docs.python.org/howto/unicode.html

For your actual problem, I have difficulties seeing how it can happen
with the above data - frankly because there is nothing outside the
ascii-range of data, so there is no reason why anything could be wrong
encoded.

I came to the same conclusion.

But googling the error-message reveals that there seem to be totally
unrelated reasons for this:

   http://sindro.me/2010/4/3/couchdb-invalid-utf8-json

Maybe using something like tcpmon or ethereal to capture the actual
HTTP-request helps to see where the issue comes from.

Diez


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