On Sat, Jul 19, 2008 at 10:44 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote: > > Hi, > > when testing sage 3.0.5 using py.test, sage fails to import, because > it's using input (?) stream's write and flush methods:
I don't know what py.test is, but do you really need to use the IPython interface to sage with it? Instead of running Sage could you do sage -python then put from sage.all import * or something? This comment may be completely off, since I don't know what py.test is. Hey, what's py.test? > > def __init__(self,stream,fallback): > if not hasattr(stream,'write') or not hasattr(stream,'flush'): > stream = fallback > self.stream = stream > E self._swrite = stream.write >> AttributeError: DontReadFromInput instance has no attribute 'write' > > [/home/ondra/ext/sage/local/lib/python2.5/site-packages/IPython/genutils.py:54] > ________________________________________________________________________________ > > > Full traceback is here: > > http://paste.debian.net/11644 > > Not sure if this is a bug in Sage or py.test, but nevertheless, the > following patch fixes the problem: > > --- /tmp/genutils.py 2008-07-19 20:50:56.000000000 +0200 > +++ > /home/ondra/ext/sage/local/lib/python2.5/site-packages/IPython/genutils.py > 2008-07-19 > 21:00:16.743189357 +0200 > @@ -51,8 +51,8 @@ > if not hasattr(stream,'write') or not hasattr(stream,'flush'): > stream = fallback > self.stream = stream > - self._swrite = stream.write > - self.flush = stream.flush > + #self._swrite = stream.write > + #self.flush = stream.flush > > def write(self,data): > try: > > > Another way to fix it is to put these lines: > > import sys > sys.stdin.write = 1 > sys.stdin.flush = 1 > > into a testfile. That's what I am using now. What py.test does is that > it sets sys.stdin to this class: > > class DontReadFromInput: > """Temporary stub class. Ideally when stdin is accessed, the > capturing should be turned off, with possibly all data captured > so far sent to the screen. This should be configurable, though, > because in automated test runs it is better to crash than > hang indefinitely. > """ > def read(self, *args): > raise IOError("reading from stdin while output is captured") > readline = read > readlines = read > __iter__ = read > > > But I don't understand why ipython wants to write to stdin... > > Ondrej > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
