You were right!
i moved, just for testing import integrate in series() and the error is
removed.
Thanks.
from __future__ import print_function, division
from sympy.core.sympify import sympify
def series(expr, x=None, x0=0, n=6, dir="+"):
from sympy.integrals import integrate
"""Series expansion of expr around point `x = x0`.
See the doctring of Expr.series() for complete details of this wrapper.
"""
expr = sympify(expr)
return expr.series(x, x0, n, dir)
On Monday, October 28, 2013 6:52:47 PM UTC+1, Aaron Meurer wrote:
>
> Oh, if it came from adding an import, then the issue is most likely
> due to a circular import problem. In that case, you'll have to move
> the import inside the function that needs it.
>
> Aaron Meurer
>
> On Mon, Oct 28, 2013 at 12:37 AM, Pablo Puente
> <[email protected]<javascript:>>
> wrote:
> > The problem was not on master (sorry) but was caused by a modification i
> did
> > locallay.
> >
> > Adding "from sympy.integrals import integrate" in series.py causes, with
> > both python3 and python 2, the ImportError.
> >
> > I searched for "roots" and found a twisted python library file caled
> > "roots.py"
> >
> > pape@lenovo:~/sympy$ locate roots
> > /home/pape/sympy/sympy/polys/polyroots.py
> > /home/pape/sympy/sympy/polys/polyroots.pyc
> > /home/pape/sympy/sympy/polys/__pycache__/polyroots.cpython-33.pyc
> > /home/pape/sympy/sympy/polys/tests/test_polyroots.py
> >
> /home/pape/workspace/.metadata/.plugins/com.python.pydev.analysis/python_v1_3tswbhuj9gc4kibexhrzgzdx/v1_indexcache/sympy.polys.polyroots_5ze7.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/com.python.pydev.analysis/python_v1_3tswbhuj9gc4kibexhrzgzdx/v1_indexcache/sympy.polys.tests.test_polyroots_uce2.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/com.python.pydev.analysis/python_v1_3tswbhuj9gc4kibexhrzgzdx/v1_indexcache/twisted.python.roots_9ohn.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/com.python.pydev.analysis/python_v1_3tswbhuj9gc4kibexhrzgzdx/v1_indexcache/twisted.test.test_roots_eoll.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/org.eclipse.core.resources/.projects/sympy/com.python.pydev.analysis/v1_indexcache/sympy.polys.polyroots_5ze7.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/org.eclipse.core.resources/.projects/sympy/com.python.pydev.analysis/v1_indexcache/sympy.polys.tests.test_polyroots_uce2.v1_indexcache
>
>
> > /usr/lib/python2.7/dist-packages/sympy/polys/polyroots.py
> > /usr/lib/python2.7/dist-packages/sympy/polys/polyroots.pyc
> > /usr/lib/python2.7/dist-packages/sympy/polys/tests/test_polyroots.py
> > /usr/lib/python2.7/dist-packages/sympy/polys/tests/test_polyroots.pyc
> > /usr/lib/python2.7/dist-packages/twisted/python/roots.py
> > /usr/lib/python2.7/dist-packages/twisted/python/roots.pyc
> > /usr/lib/python2.7/dist-packages/twisted/test/test_roots.py
> > /usr/lib/python2.7/dist-packages/twisted/test/test_roots.pyc
> > /usr/share/doc/python-twisted-web/examples/rootscript.py
> > /usr/share/pyshared/sympy/polys/polyroots.py
> > /usr/share/pyshared/sympy/polys/tests/test_polyroots.py
> > /usr/share/pyshared/twisted/python/roots.py
> > /usr/share/pyshared/twisted/test/test_roots.py
> >
> > Also I thought it could be caused come from another sympy installation
> in
> > pythonpath (maybe coming from IPython Notebook).
> >
> > pape@lenovo:~/sympy$ locate polytools
> > /home/pape/sympy/sympy/polys/polytools.py
> > /home/pape/sympy/sympy/polys/polytools.pyc
> > /home/pape/sympy/sympy/polys/__pycache__/polytools.cpython-33.pyc
> > /home/pape/sympy/sympy/polys/tests/test_polytools.py
> >
> /home/pape/workspace/.metadata/.plugins/com.python.pydev.analysis/python_v1_3tswbhuj9gc4kibexhrzgzdx/v1_indexcache/sympy.polys.polytools_6qvd.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/com.python.pydev.analysis/python_v1_3tswbhuj9gc4kibexhrzgzdx/v1_indexcache/sympy.polys.tests.test_polytools_1mp0.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/org.eclipse.core.resources/.projects/sympy/com.python.pydev.analysis/v1_indexcache/sympy.polys.polytools_6qvd.v1_indexcache
>
>
> >
> /home/pape/workspace/.metadata/.plugins/org.eclipse.core.resources/.projects/sympy/com.python.pydev.analysis/v1_indexcache/sympy.polys.tests.test_polytools_1mp0.v1_indexcache
>
>
> > /usr/lib/python2.7/dist-packages/sympy/polys/polytools.py
> > /usr/lib/python2.7/dist-packages/sympy/polys/polytools.pyc
> > /usr/lib/python2.7/dist-packages/sympy/polys/tests/test_polytools.py
> > /usr/lib/python2.7/dist-packages/sympy/polys/tests/test_polytools.pyc
> > /usr/share/pyshared/sympy/polys/polytools.py
> > /usr/share/pyshared/sympy/polys/tests/test_polytools.py
> >
> >
> > I removed /usr/share/pyshared/sympy/ but the problem still happens.
> >
> > Any other ideas?
> >
> > On Monday, October 28, 2013 1:50:38 AM UTC+1, Aaron Meurer wrote:
> >>
> >> It works for me.
> >>
> >> Make sure that you don't have anything named "roots" laying around. Or
> >> any additional files or directories for that matter (git status will
> >> tell you what untracked file you have in your repository). Python 3
> >> has these annoying "namespace" packages, meaning that if you have any
> >> directory in your current directory (even if it's completely unrelated
> >> to Python) with the same name as a package, it will break Python,
> >> because it will try to import that directory instead of the package.
> >>
> >> Aaron Meurer
> >>
> >> On Sun, Oct 27, 2013 at 3:26 AM, Pablo Puente <[email protected]>
> >> wrote:
> >> > I did a pull from master and now I get an import error:
> >> >
> >> > pape@lenovo:~/sympy$ python3 bin/test
> >> > Traceback (most recent call last):
> >> > File "bin/test", line 76, in <module>
> >> > import sympy
> >> > File "/home/pape/sympy/sympy/__init__.py", line 35, in <module>
> >> > from .polys import *
> >> > File "/home/pape/sympy/sympy/polys/__init__.py", line 21, in
> <module>
> >> > from . import numberfields
> >> > File "/home/pape/sympy/sympy/polys/numberfields.py", line 26, in
> >> > <module>
> >> > from sympy.polys.rootoftools import RootOf
> >> > File "/home/pape/sympy/sympy/polys/rootoftools.py", line 16, in
> >> > <module>
> >> > from sympy.polys.polyroots import (
> >> > File "/home/pape/sympy/sympy/polys/polyroots.py", line 22, in
> <module>
> >> > from sympy.simplify import simplify, powsimp
> >> > File "/home/pape/sympy/sympy/simplify/__init__.py", line 23, in
> >> > <module>
> >> > from .hyperexpand import hyperexpand
> >> > File "/home/pape/sympy/sympy/simplify/hyperexpand.py", line 80, in
> >> > <module>
> >> > from sympy.series import residue
> >> > File "/home/pape/sympy/sympy/series/__init__.py", line 6, in
> <module>
> >> > from .series import series
> >> > File "/home/pape/sympy/sympy/series/series.py", line 4, in <module>
> >> > from sympy.integrals import integrate
> >> > File "/home/pape/sympy/sympy/integrals/__init__.py", line 12, in
> >> > <module>
> >> > from .integrals import integrate, Integral, line_integrate
> >> > File "/home/pape/sympy/sympy/integrals/integrals.py", line 3, in
> >> > <module>
> >> > from sympy.concrete.expr_with_limits import AddWithLimits
> >> > File "/home/pape/sympy/sympy/concrete/__init__.py", line 1, in
> >> > <module>
> >> > from .products import product, Product
> >> > File "/home/pape/sympy/sympy/concrete/products.py", line 11, in
> >> > <module>
> >> > from sympy.polys import quo, roots
> >> > ImportError: cannot import name roots
> >> >
> >> > --
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> >> > "sympy" group.
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> >> > an
> >> > email to [email protected].
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> >
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