import mlpack fails in python - python

I am trying to use mlpack in python scripts. I just installed the mlpack package from source into my directory /home/glassjawed/local/ and
glassjawed#Y9Acer:~$ ls local/lib | grep mlpack
libmlpack.so
libmlpack.so.3
libmlpack.so.3.0
glassjawed#Y9Acer:~$ ls local/include/mlpack/bindings/python
get_arma_type.hpp print_defn.hpp
get_cython_type.hpp print_doc_functions.hpp
get_numpy_type_char.hpp print_doc_functions_impl.hpp
get_numpy_type.hpp print_doc.hpp
get_param.hpp print_input_processing.hpp
get_printable_param.hpp print_output_processing.hpp
get_python_type.hpp print_pyx.hpp
import_decl.hpp py_option.hpp
mlpack strip_type.hpp
print_class_defn.hpp
So mlpack is clearly installed. HOWEVER, I can't seem to run this in python because I get a module not found error.
glassjawed#Y9Acer:~$ python
Python 3.6.7 | packaged by conda-forge | (default, Nov 21 2018, 03:09:43)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>> import mlpack
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'mlpack'
Why is this happening and how can I fix this? I tried everything.
`

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Cannot use socket

I am trying to import socket and I get the following error:
$ python
Python 2.7.16 |Anaconda, Inc.| (default, Mar 14 2019, 16:24:02)
[GCC 4.2.1 Compatible Clang 4.0.1 (tags/RELEASE_401/final)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import socket
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "socket.py", line 68, in <module>
from _ssl import \
ImportError: cannot import name RAND_egd
I thought that perhaps my Anaconda installation was corrupted so I uninstalled and reinstalled Anaconda but the error persists.
I had tried what the other posts suggested except for editing socket.py due to Macos System Integrity Protection. My guess is that the problem lies elsewhere as I doubt that everyone has had to edit the file.
How can I find the source of the problem?

Why do I get a ModuleNotFoundError for winreg on a Linux system?

'winreg' module is not found python 3.6.7. I am not facing this problem in Python 3.4.
Is any third-party app in 'winreg' that I can use same code or how can I solve this.
jaki#jaki-notebook:~$ python3 -V
Python 3.6.7
jaki#jaki-notebook:~$ python3
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from winreg import *
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'winreg'
>>>
ModuleNotFoundError: No module named 'winreg'
It is not work on linux because this package expose functions of the Windows registry API to Python
Read this documentation on python offical website

SciPy ImportError on Python 2.6 Anaconda

I developed a Python package using Python 2.7 and 3.4, and now I'm trying to test it for 2.6 compatibility. So in Anaconda, I made a new conda environment for Python 2.6:
conda create -n python2.6 python=2.6.9 numpy scipy
But now, when I try to import some stuff from scipy:
$ python
Python 2.6.9 |Continuum Analytics, Inc.| (unknown, Jan 10 2014, 13:33:57)
[GCC 4.2.1 (Apple Inc. build 5577)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import scipy.sparse
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/__init__.py", line 212, in <module>
from .csr import *
File "/Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/csr.py", line 13, in <module>
from ._sparsetools import csr_tocsc, csr_tobsr, csr_count_blocks, \
ImportError: dlopen(/Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/_sparsetools.so, 2): Symbol not found: __ZNSaIcEC1Ev
Referenced from: /Users/jsleinon/anaconda/envs/python2.6/lib/python2.6/site-packages/scipy/sparse/_sparsetools.so
Expected in: dynamic lookup
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matplotlib: no module named compat

I have installed python-2.7.5-5ubuntu3 and matplotlib-1.3.1-1ubuntu5 from the ubuntu 14.04 repository via apt-get. Trying to import the library in python 2.7 raises the following import error:
harold#ubuntu:~$ python
Python 2.7.6 (default, Mar 22 2014, 22:59:56)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/share/pyshared/matplotlib/__init__.py", line 157, in <module>
from matplotlib.compat import subprocess
ImportError: No module named compat
>>>
I checked the directory /usr/share/pyshared/matplotlib and, indeed, cannot find any package called compat.
Any idea what is broken on my system?
Thanks!
I have found same problem on Ubuntu 16 & 14.
Possible source of the problem is damaged instance of matplotlib. Damaged instance overlaps working instance of matplotlib.
Please try to remove broken instance of matplotlib to solve the issue.
Firstly I have looked matplotlib instances:
find / |grep matplotlib | grep __init__\.py$ |more
Secondly I have deleted this folder:
find /usr/share/pyshared/matplotlib -delete

How to solve AttributeError when importing igraph?

When I import the igraph package in my project, I get an AttributeError. This only happens in the project directory:
[12:34][~]$ python2
Python 2.7.1 (r271:86832, Apr 15 2011, 12:09:10)
[GCC 4.5.2 20110127 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import igraph
>>>
[12:34][~]$ cd projectdir/
[12:34][projectdir]$ python2
Python 2.7.1 (r271:86832, Apr 15 2011, 12:09:10)
[GCC 4.5.2 20110127 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import igraph
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/site-packages/igraph/__init__.py", line 42, in <module>
import gzip
File "/usr/lib/python2.7/gzip.py", line 36, in <module>
class GzipFile(io.BufferedIOBase):
AttributeError: 'module' object has no attribute 'BufferedIOBase'
>>>
There is no file igraph.py in the project directory:
[12:34][projectdir]$ ls -alR | grep igraph | wc -l
0
And there are no circular imports.
How can I solve this error?
Most likely, there is a module io in ~/projectdir or one of the paths the project configures. The gzip module imported by igraph starts with
import io
and expect the built-in io module, not your project's one. Look for an io directory, or io.py or io.pyc. It can also help to scrutinize sys.path for any other directories (maybe outside of ~/projectdir) that might contain modules named io.

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