Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!goblin2!goblin.stu.neva.ru!newsfeed.xs4all.nl!newsfeed4a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python.': 0.02; 'argument': 0.05; '<>,': 0.07; 'modifying': 0.07; 'nicely': 0.07; 'here?': 0.09; 'throws': 0.09; 'to)': 0.09; 'url:github': 0.09; 'wrong,': 0.09; 'python': 0.11; 'posted': 0.15; '__init__.py': 0.16; 'code?': 0.16; 'fine.': 0.16; 'google.\xc2\xa0': 0.16; 'hits': 0.16; 'numpy': 0.16; 'obviously,': 0.16; 'skip:" 100': 0.16; 'str,': 0.16; 'subject:import': 0.16; 'typeerror:': 0.16; 'subject:python': 0.16; 'thanks,': 0.17; 'wrote:': 0.18; 'written': 0.21; 'import': 0.22; 'mike': 0.22; 'to:name:python- list@python.org': 0.22; 'error': 0.23; 'bytes': 0.24; 'instead.': 0.24; 'mon,': 0.24; "haven't": 0.24; 'looks': 0.24; 'question': 0.24; "i've": 0.25; '>': 0.26; 'extension': 0.26; 'suggested': 0.26; 'this:': 0.26; 'header:In-Reply-To:1': 0.27; 'chris': 0.29; "doesn't": 0.30; 'message-id:@mail.gmail.com': 0.30; "i'm": 0.30; 'url:mailman': 0.30; 'gives': 0.31; '"",': 0.31; '3.x': 0.31; 'file': 0.32; 'received:209.85.212': 0.32; 'url:python': 0.33; '(most': 0.33; 'subject:with': 0.35; "can't": 0.35; 'received:209.85': 0.35; 'anywhere': 0.35; 'something': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'subject:Simple': 0.36; 'url:listinfo': 0.36; 'doing': 0.36; 'url:org': 0.36; 'wrong': 0.37; 'received:209': 0.37; 'being': 0.38; 'skip:& 10': 0.38; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'anything': 0.39; 'recent': 0.39; 'skip:& 20': 0.39; 'skip:. 10': 0.39; 'to:addr:python.org': 0.39; 'url:mail': 0.40; 'skip:n 10': 0.64; 'laptop': 0.65; 'here': 0.66; '20,': 0.68; 'line,': 0.68; 'gotten': 0.74; 'goals': 0.81; '4:29': 0.84; 'c-api': 0.84; 'hands': 0.96 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:content-type; bh=Ks9XruLRQ5ByYxHM0yb+/9d+d1L0J8jkKph6Eb5S0eo=; b=KS/4wp9CxhdGaCRleg25q0wCBz3uTyq1wcZhlhg9LkH2ic73yGXRu3ydN3h3i3jriU 0RYcZty7dYX3UZQbdLTb2AUKfVr0b7jdRcJMn/WYqXplx1U2rQjr2mf+1PibA9be766R +SMms05lszObACsmOVcaKYMj1OmYASIh+RNnzl9Fuu4VVSa9WvM7EVJFytqUItD6Y41g 1uHrinQmE+p+SQu0M8tgZcvcwBKcCI/kbJR1kgUpONGfbU2boeO4wsNE46/TtM8jBRjc QJZBewINxQ7V2OQ4RQZw8BnKjwIUMPPTpgR+qJblDWZh9pvjz3F0+FrxWeKkmizLUAC+ rnBQ== X-Gm-Message-State: ALoCoQn6InIXIurA5vzuM9eEWNbcZFUSYoS989lClsC69uvzAmfyhq8lONb852OSUqsoAQAdRbY1 X-Received: by 10.180.21.163 with SMTP id w3mr24239786wie.66.1413848743231; Mon, 20 Oct 2014 16:45:43 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: From: Chris Kaynor Date: Mon, 20 Oct 2014 16:45:23 -0700 Subject: Re: Simple import in python 3 errors with complaint about bytes To: "python-list@python.org" Content-Type: multipart/alternative; boundary=047d7b6da43c1b75240505e35078 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 109 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1413848750 news.xs4all.nl 2833 [2001:888:2000:d::a6]:33279 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:79353 --047d7b6da43c1b75240505e35078 Content-Type: text/plain; charset=UTF-8 Are you perhaps doing an import inside of the C code? Chris On Mon, Oct 20, 2014 at 4:29 PM, Mike Boyle wrote: > I'm modifying an extension written with the c-api to have a datatype of > quaternions , with one of the > goals being python 3 support. It works nicely in python 2.7, but for > python 3.x gives an error that I can't find anywhere on the google. The > directory looks like this: > > .../site-packages/ > quaternion/ > __init__.py > numpy_quaternion.so > > __init__.py contains a line like this: > > from .numpy_quaternion import quaternion > > But when it hits that line, python 3 throws its hands up in disgust: > > > python -c 'import quaternion' > Traceback (most recent call last): > File "", line 1, in > File > "/Users/mynamehere/.continuum/anaconda/envs/py3k/lib/python3.4/site-packages/quaternion/__init__.py", > line 3, in > from .numpy_quaternion import quaternion > TypeError: __import__() argument 1 must be str, not bytes > > The only thing before that line is `import numpy as np`, which typically > works just fine. Obviously, I'm using python3.4 to compile and (attempt > to) import (with a conda environment), so it's not something as dumb as > using the wrong python. Also, this is the result for both me on my laptop > and Travis-CI , so it > doesn't seem to be anything peculiar to my installation. I've posted this > question on stackoverflow, but haven't gotten much interest; the only > responder suggested I ask here instead. > > Any ideas what's going wrong, or where I can go from here? > > Thanks, > Mike > -- > https://mail.python.org/mailman/listinfo/python-list > --047d7b6da43c1b75240505e35078 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Are you perhaps doing an import inside of the C code?

Chris

On Mon, Oct 20, 2014 at 4:29 PM, Mike Boyle = <moboyle79@outlook.com> wrote:
I'm modifying an extension written with the c-api to have a da= tatype of quaternions <https://github.com/moble/numpy_quaternion>, w= ith one of the goals being python 3 support.=C2=A0 It works nicely in pytho= n 2.7, but for python 3.x gives an error that I can't find anywhere on = the google.=C2=A0 The directory looks like this:

.../site-packages/
=C2=A0 =C2=A0 quaternion/
=C2=A0 =C2=A0 =C2=A0 =C2=A0 __init__.py
=C2=A0 =C2=A0 =C2=A0 =C2=A0 numpy_quaternion.so

__init__.py contains a line like this:

=C2=A0 =C2=A0 from .numpy_quaternion import quaternion

But when it hits that line, python 3 throws its hands up in disgust:

> python -c 'import quaternion'
Traceback (most recent call last):
=C2=A0 File "<string>", line 1, in <module>
=C2=A0 File "/Users/mynamehere/.continuum/anaconda/envs/py3k/lib/pytho= n3.4/site-packages/quaternion/__init__.py", line 3, in <module><= br> =C2=A0 =C2=A0 from .numpy_quaternion import quaternion
TypeError: __import__() argument 1 must be str, not bytes

The only thing before that line is `import numpy as np`, which typically wo= rks just fine.=C2=A0 Obviously, I'm using python3.4 to compile and (att= empt to) import (with a conda environment), so it's not something as du= mb as using the wrong python.=C2=A0 Also, this is the result for both me on= my laptop and Travis-CI <https://travis-ci.org/moble/numpy_quaternion>, so it doesn't seem to be anything peculiar to my installation.= =C2=A0 I've posted this question on stackoverflow, but haven't gott= en much interest; the only responder suggested I ask here instead.

Any ideas what's going wrong, or where I can go from here?

Thanks,
Mike
--
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