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Opencv will not import

I ran pip3 install opencv-python==3.3.0.10
but I am getting
$ python3
Python 3.6.0 (v3.6.0:41df79263a11, Dec 22 2016, 17:23:13)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cv2'
I know there are many ways to install opencv but this one seemed the most straightforward.

1 - Open a terminal and pip install cmake:
pip install cmake
2 - Download opencv repository from https://github.com/opencv/opencv
3 - On your terminal cd to the folder where you downloaded the opencv repository and compile it with cmake typing the following commands:
mkdir release
cd release
cmake -D CMAKE_BULD_TYPE=RELEASE -D BUILD_PYTHON_SUPPORT=ON USE_V4L=ON WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON USE_GStreamer=ON ..
make
make install
Opencv is now correctly installed on your machine and you should be able to successfully import it in Python with no error.
Let me know if this solves the problem

Error while installing package developed with cliff

I wrote a command line tool with cliff 2.3.0, tested on my laptop (Mac, Python 2.7.12). When I was tried to install it (python setup.py install) on a server (Linux, Python 2.7.2), I encountered this error:
Installed /private/tmp/easy_install-EGMO15/cliff-2.3.0/pbr-1.10.0-py2.7.egg
ERROR:root:Error parsing
Traceback (most recent call last): File "/private/tmp/easy_install-EGMO15/cliff-2.3.0/pbr-1.10.0-> py2.7.egg/pbr/core.py", line 111, in pbr
attrs = util.cfg_to_args(path, dist.script_args) File "/private/tmp/easy_install-EGMO15/cliff-2.3.0/pbr-1.10.0-py2.7.egg/pbr/util.py", line 248, in cfg_to_args
kwargs = setup_cfg_to_setup_kwargs(config, script_args) File "/private/tmp/easy_install-EGMO15/cliff-2.3.0/pbr-1.10.0-py2.7.egg/pbr/util.py", line 431, in setup_cfg_to_setup_kwargs
if pkg_resources.evaluate_marker('(%s)' % env_marker):
AttributeError: 'module' object has no attribute 'evaluate_marker' error: Setup script exited with error in setup command: Error parsing /private/tmp/easy_install-EGMO15/cliff-2.3.0/setup.cfg: AttributeError: 'module' object has no attribute 'evaluate_marker'
Any suggestions?

It looks like your server may have a (much) older version of the setuptools package installed (which provides the pkg_resources module). The evaluate_marker method looks as if it first showed up at the end of 2014, so if you're using an older system it is possible that method is not available.
Depending on your environment, you may be able to simply pip install -U setuptools, or you may need to see if your distribution has a newer isntallable package available.
If you can update your question to include details about your server's operating environment (what distribution and version are you running? What version of Python? What version of setuptools?), we can probably provide a more complete answer.
Update
For example, Ubuntu 12.04 only has setuptools 0.6, and the pkg_resources module (which is packaged in the python-pkg-resources package) does not have the evaluate_marker method:
# python
Python 2.7.3 (default, Jun 22 2015, 19:33:41)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pkg_resources
>>> pkg_resources.evaluate_marker
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'evaluate_marker'
In this environment, I can install pip:
# apt-get install python-pip
And then upgrade the installed version of setuptools:
# pip install -U setuptools
And now:
# python
Python 2.7.3 (default, Jun 22 2015, 19:33:41)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pkg_resources
>>> pkg_resources.evaluate_marker
<function evaluate_marker at 0x1535050>
>>>
NB Upgrading distribution packages (e.g., things installed by apt-get in this example) using pip can often lead to sadness and heartache, and you are much better off if you are able to upgrade the underlying environment to one where such workarounds are not necessary. Alternatively, running your code from a Python virtual environment (so that your upgraded packages do not override system packages) is also a technically better solution.

ImportError: No module named 'paramiko'

I have done through the other questions online here, and I feel that mine is different enough to warrant a new question.
So I have a Centos 6 box, which is running a small website for me, acts as an office git server and I am trying to configure Python3 on it.
So I followed the following these steps to set up python3 on the server. However it seems that I cannot import paramiko into my script.
I downloaded the paramiko rpm however I get this message:
When I try to import paramiko I get:
[root#GIT Python-3.4.2]# rpm -ivh /usr/lib/Python-3.4.2/Modules/python-paramiko-1.7.5-2.1.el6.noarch.rpm
Preparing... ########################################### [100%]
package python-paramiko-1.7.5-2.1.el6.noarch is already installed
When I run python3 directly:
[root#GIT inserv_health_check]# python3
Python 3.4.2 (default, Jan 21 2015, 06:28:04)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import paramiko
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named 'paramiko'
>>>
I am sure there is a simple solution to this problem perhaps the path is wrong, or I should have put a symbolic link in somewhere. Any help would be appreciated :)
Before anyone asks, which python output:
[root#GIT Python-3.4.2]# which python
/usr/bin/python
[root#GIT Python-3.4.2]# which pytho~n3
/usr/bin/which: no pytho~n3 in (/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
[root#GIT Python-3.4.2]# which python3
/usr/local/bin/python3
Thanks

You need to do pip install paramiko so that python sees that module. If you work on a virtual environment, you need to workon <env_name> first and then pip install the desired module.

type pip3 install paramiko
if you want to install it for python3

import error twilio even after installation

I am doing a course on udacity where I need need to install twilio for python. I have sucessfully installed but still i get import error
Any pointers or help will be useful:
abhinav#abhinav-HP-Pavilion-dv5-Notebook-PC:~$ which -a python
/usr/local/bin/python
/usr/bin/python
abhinav#abhinav-HP-Pavilion-dv5-Notebook-PC:~$ which -a pip
/usr/bin/pip
abhinav#abhinav-HP-Pavilion-dv5-Notebook-PC:~$ pip freeze|grep twilio
Warning: cannot find svn location for distribute==0.6.24dev-r0
twilio==3.6.6
abhinav#abhinav-HP-Pavilion-dv5-Notebook-PC:~$ pip install --upgrade twilio
abhinav#abhinav-HP-Pavilion-dv5-Notebook-PC:~$ sudo pip install --upgrade twilio
abhinav#abhinav-HP-Pavilion-dv5-Notebook-PC:~$ python
Python 2.7.6 (default, Mar 16 2014, 19:06:43)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
</code>
>>> import twilio
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named twilio
>>>

You have two python installs, your pip is pointing to /usr/bin so and your default python is in /usr/local/bin.
You can remove the /usr/bin/pip and install pip get-pip.py, which will use your now default /usr/local/bin/python.
It would probably be best to remove one of the python installs and set your paths accordingly.
Just be careful when removing python, it can be detrimental to your system if you mess up your python install.

How can I install Easy_Install for Python 2.6.4 in Mac OSX 10.4.11

I get the following errors, I've placed [my name] for anonymity:
>>> python /Users/[myname]/Desktop/setuptools-0.6c11/ez_setup.py
File "<stdin>", line 1
python /Users/[myname]/Desktop/setuptools-0.6c11/ez_setup.py
^
SyntaxError: invalid syntax
If you can't see the ^ is under the 11.
Or I get this error:
>>> python /Users/[myname]/Desktop/EZ_tutorial/ez_setup.py
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'python' is not defined

The ez_setup.py script may or may not work depending on your environment. If not, follow the instructions here. In particular, from the shell, make sure that the python 2.6 you installed is now invoked by the command python:
$ python
Python 2.6.4 (r264:75821M, Oct 27 2009, 19:48:32)
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> ^D
If not, modify your shell's PATH environment variable. Then download the setuptools 2.6 python egg from here, change to your brower's download directory, and run the downloaded script:
$ cd ~/Downloads # substitute the appropriate directory name
$ sh setuptools-0.6c11-py2.6.egg

Try running that command from a shell (i.e. straight from Terminal.app), not from inside the python interpreter.