#17940: IOError: cannot identify image file
------------------------------+----------------------------
Reporter: gagern | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.6
Component: user interface | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
------------------------------+----------------------------
With Sage 6.6 beta 3 and using Sage Notebook I get a backtrace when I want
to see a sphere:
{{{
sage: sphere()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_3.py", line 10, in <module>
exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8
-*-\\n" +
_support_.preparse_worksheet_cell(base64.b64decode("c3BoZXJlKCk="),globals())+"\\n");
execfile(os.path.abspath("___code___.py"))
File "", line 1, in <module>
File "/tmp/tmpWqCNEl/___code___.py", line 2, in <module>
exec compile(u'sphere()
File "", line 1, in <module>
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/display_manager.py", line 716, in
displayhook
return self._backend.displayhook(plain_text, rich_output)
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_base.py", line 432, in displayhook
return self.display_immediately(plain_text, rich_output)
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_sagenb.py", line 361, in
display_immediately
rich_output.embed()
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_sagenb.py", line 258, in embed
self.save_preview()
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_sagenb.py", line 237, in
save_preview
self.preview_png.save_as(self.preview_filename())
File "sage/misc/cachefunc.pyx", line 2209, in
sage.misc.cachefunc.CachedMethodCallerNoArgs.__call__
(build/cythonized/sage/misc/cachefunc.c:13699)
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_sagenb.py", line 189, in
preview_filename
directory, filename = os.path.split(self._base_filename())
File "sage/misc/cachefunc.pyx", line 2209, in
sage.misc.cachefunc.CachedMethodCallerNoArgs.__call__
(build/cythonized/sage/misc/cachefunc.c:13699)
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_sagenb.py", line 147, in
_base_filename
filename = self.sagenb_launch_script_filename()
File "sage/misc/cachefunc.pyx", line 2209, in
sage.misc.cachefunc.CachedMethodCallerNoArgs.__call__
(build/cythonized/sage/misc/cachefunc.c:13699)
File "sage/local/lib/python2.7/site-
packages/sage/repl/rich_output/backend_sagenb.py", line 122, in
sagenb_launch_script_filename
width, height = PIL.Image.open(StringIO(self.preview_png.get())).size
File "build/bdist.linux-x86_64/egg/PIL/Image.py", line 2006, in open
IOError: cannot identify image file
}}}
Using strace I can see access to some `preview.png` and looking at that
file I notice that it appears to be a regular PNG, concatenated with a
Jmol script. So apparently two outputs ended up in the same data stream.
This is likely a consequence of #17234.
--
Ticket URL: <http://trac.sagemath.org/ticket/17940>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
