ImportError: No module named scipy

Question

I am using Python 2.7 and trying to get PyBrain to work.

But I get this error even though scipy is installed -

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/PyBrain-0.3.1-
py2.7.egg/pybrain/__init__.py", line 1, in <module>
    from pybrain.structure.__init__ import *
  File "/usr/local/lib/python2.7/site-packages/PyBrain-0.3.1-py2.7.egg/pybrain/structure/__init__.py", line 1, in <module>
    from pybrain.structure.connections.__init__ import *
  File "/usr/local/lib/python2.7/site-packages/PyBrain-0.3.1-py2.7.egg/pybrain/structure/connections/__init__.py", line 1, in <module>
    from pybrain.structure.connections.full import FullConnection
  File "/usr/local/lib/python2.7/site-packages/PyBrain-0.3.1-py2.7.egg/pybrain/structure/connections/full.py", line 3, in <module>
    from scipy import reshape, dot, outer
ImportError: No module named scipy

I have installed scipy using this command -

sudo apt-get install python-scipy

I get -

Reading package lists... Done
Building dependency tree       
Reading state information... Done
python-scipy is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

What should I do?

Answer 1

For Windows User : pip install -U scipy

Answer 2

My problem was that I spelt one of the libraries wrongly when installing with pip3, which ended up all the other downloaded libaries in the same command not being installed. Just run pip3 install on them again and they should be installed from their cache.

Answer 3

Your python don't know where you installed scipy. add the scipy path to PYTHONPATH and I hope it will solve your problem.

Answer 4

I had a same problem because I installed both of python2.7 and python3. when I run program with python3 I received same error. I install scipy with this command and problem has been solved:

sudo apt-get install python3-scipy

Answer 5

For windows users:

I found this solution after days. Firstly which python version you want to install?

If you want for Python 2.7 version:

STEP 1:

scipy‑0.19.0‑cp27‑cp27m‑win32.whl

scipy‑0.19.0‑cp27‑cp27m‑win_amd64.whl

numpy‑1.11.3+mkl‑cp27‑cp27m‑win32.whl

numpy‑1.11.3+mkl‑cp27‑cp27m‑win_amd64.whl

If you want for Python 3.4 version:

scipy‑0.19.0‑cp34‑cp34m‑win32.whl

scipy‑0.19.0‑cp34‑cp34m‑win_amd64.whl

numpy‑1.11.3+mkl‑cp34‑cp34m‑win32.whl

numpy‑1.11.3+mkl‑cp34‑cp34m‑win_amd64.whl

If you want for Python 3.5 version:

scipy‑0.19.0‑cp35‑cp35m‑win32.whl

scipy‑0.19.0‑cp35‑cp35m‑win_amd64.whl

numpy‑1.11.3+mkl‑cp35‑cp35m‑win32.whl

numpy‑1.11.3+mkl‑cp35‑cp35m‑win_amd64.whl

If you want for Python 3.6 version:

scipy‑0.19.0‑cp36‑cp36m‑win32.whl

scipy‑0.19.0‑cp36‑cp36m‑win_amd64.whl

numpy‑1.11.3+mkl‑cp36‑cp36m‑win32.whl

numpy‑1.11.3+mkl‑cp36‑cp36m‑win_amd64.whl

Link: [click[1]

Once finish installation, go to your directory.

For example my directory:

cd C:\Users\asus\AppData\Local\Programs\Python\Python35\Scripts>
pip install [where/is/your/downloaded/scipy_whl.]

STEP 2:

Numpy+MKL

From same web site based on python version again:

After that use same thing again in Script folder

cd C:\Users\asus\AppData\Local\Programs\Python\Python35\Scripts>
pip3 install [where/is/your/downloaded/numpy_whl.]

And test it in python folder.

Python35>python 
Python 3.5.2 (v3.5.2:4def2a2901a5, Jun 25 2016, 22:18:55) [MSC v.1900 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. 
>>>import scipy

Answer 6

If you need to get scipy in your Pyhton environment on Windows you can get the *.whl files here:

http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy

Remember that you need to install numpy+mkl before you can install scipy.

http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy

When you have downloaded the correct *.whl files just open a cmd prompt in the download directory and run pip install *.whl.