ImportError: cannot import name 'Datastream'

[dhodod]

Hi, I'm trying to set up pydatastream under anaconda. I have successfully upgraded pandas and installed suds-py3 and pydatasteam-0.4.0 using pip. When I enter "from pydatastream import Datastream" on the python command line or in a jupyter notebook I get the error in the subject line. Is this a bug or am I missing a step in the setup?

[vfilimonov]

Hello,

this is indeed very strange. Could you please show the full traceback? And also: does import pydatastream fail with the same error?

BTW, are you using Python 3.x?

Best Vladimir

[dhodod]

Hi, Thanks for getting back to me. Yes, I'm using Python 3.5.

The full traceback is here:

from pydatastream import Datastream Traceback (most recent call last): File "", line 1, in ImportError: cannot import name 'Datastream'

The simple import doesn't throw an error message: import pydatastream

The pip install appears to show that all the dependencies are in place:

iMac:~ dhodod$ pip install -e ./Downloads/pydatastream-master --upgrade Obtaining file:///Users/davidhood/Downloads/pydatastream-master Requirement already up-to-date: suds-py3 in ./anaconda/lib/python3.5/site-packages (from PyDatastream==0.4.0) Requirement already up-to-date: pandas in ./anaconda/lib/python3.5/site-packages (from PyDatastream==0.4.0) Requirement already up-to-date: python-dateutil>=2 in ./anaconda/lib/python3.5/site-packages (from pandas->PyDatastream==0.4.0) Requirement already up-to-date: pytz>=2011k in ./anaconda/lib/python3.5/site-packages (from pandas->PyDatastream==0.4.0) Requirement already up-to-date: numpy>=1.7.0 in ./anaconda/lib/python3.5/site-packages (from pandas->PyDatastream==0.4.0) Requirement already up-to-date: six>=1.5 in ./anaconda/lib/python3.5/site-packages (from python-dateutil>=2->pandas->PyDatastream==0.4.0) Installing collected packages: PyDatastream Running setup.py develop for PyDatastream Successfully installed PyDatastream-0.4.0

I'm trying it here on a mac but I had a similar problem on a Windows machine.

Best regards, David

[vfilimonov]

Thanks, David.

Honestly I'm a bit confused. Could it be some python-3 specific issue (e.g. caused by the line from pydatastream import * inside __init__.py)? I've never worked with python 3.x so I could only guess at the moment...

And what if you do:

import pydatastream as pds
DWE = pds.Datastream(username="DS:XXXX000", password="XXX000")

instead of from pydatastream import Datastream? If it does not work - could you please tell me what do you see if you do (in IPython or jupyter notebook) import pydatastream as pds and then type pds. and hit "Tab"?

[dhodod]

Hi Vladimir,

Sorry for the delay in replying.

I found the solution thanks to your last post. I used the 2to3 conversion utility and now it all works beautifully. 2to3 ./Downloads/pydatastream-master -w

Thanks for your help - it's much appreciated.

Best regards, David

[vfilimonov]

Hello David,

I used 2to3 and pushed changes here. Now changes are on the pypi as well and should be retrieved with pip/pip3.

Could I ask you to do a clean install via

pip install pydatastream

(or pip3 if you use it)? I would appreciate if you could check/confirm that now installation works fine.

Thanks Vladimir

[dhodod]

Hi Vladimir, I won't have a chance to verify this for a few days but I will get back to you when I can. Thanks, David

On 27 Mar 2016, at 20:39, Vladimir Filimonov notifications@github.com wrote:

Hello David,

I used 2to3 and pushed changes here. Now changes are on the pypi as well and should be retrieved with pip/pip3.

Could I ask you to do a clean install via

pip install pydatastream (or pip3 if you use it)? I would appreciate if you could check/confirm that now installation works fine.

Thanks Vladimir

— You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub

[vfilimonov]

Sure, no rush - whenever you have time!

[ceaza]

Works on WinPython 3.5.1.2

[dhodod]

Hi Vladimir, The new version 0.4.1 worked perfectly for me too. Thanks for updating it. Best regards, David