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How to install module and package in python

I'm trying to start with OpenCV with python. I have experience c# and I have knowledge of c++. However, I feel more comfortable with python instead of c++. I installed OpenCV then python 3.4 in visual studio 2015. At the beginning I've received an error numpy, "Module couldn't be found", thankfully, I resolved it. The I got another error cv2 "Module couldn't be found" I asked an question yesterday, but I think the question has been left away. Anyways, I'm not complaining, but I still need some help please to stat with OpenCV in python.
Installing python 3.4 Successful
Installing numpy Successful
installing matpilotlib Failed
installing cv2 Failed
can anybody help me please thanks a lot.

It's very common to install Python packages through pip today (recursive acronym for pip installs packages). However, this is not that trivial under Windows.
How to install matplotlib:
Try to open a commandline and type in pip install matplotlib. If this does not work, you'll need to do some more work to get pip running. I gave a detailed answere here: Not sure how to fix this Cmd command error?.
How to install OpenCV:
The Python OpenCV DLL must be made for your version of Python and your system architecture (or, to be more specific, the architecture your Python was compiled for).
Download OpenCV for your Python version (2/3)
Try replacing the x64 version with the x86 version
There are a lot of different binaries here: http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv. Try to get the one exactly matching your Python version and System architecture and install it via pip (cp35 means CPython version 3.5 ect.).
If you have the OpenCV .whl file matching your system configuration, do pip install file.whl.
Hope this helps!

You can install matplotlib using pip (which is already installed on your machine - mentioned in your previous quesiton):
pip install matplotlib
more info:
http://matplotlib.org/faq/installing_faq.html

You may be better off using an package such as pythonxy as a start, e.g. from https://python-xy.github.io/ , instead of installing each single package manually.

Installing VMD with python support on MAC

I have been trying to install VMD1.9.2 on a Macbook with python support but have not been able to. It seems to me that the packaged .dmg file for VMD comes without Python support. I have used the command vmdinfo options to find the options my VMD is installed with and MACOSXX86 FLTKOPENGL FLTK TK ACTC CUDA IMD LIBSBALL LIBTACHYON VRPN NETCDF TCL PTHREADS SILENT this is the result which shows that it does not have Python support. My question- Is there an easy way to add python support rather than compiling from source? I just drag the App after unpacking the .dmg file to Applications folder. Am I doing something wrong while installing it this way? Is there any other way at all?
`

Robin Betz has created the vmd-python package. You can install it with conda:
conda install -c conda-forge vmd-python
More informations can be found in the package documentation.

Installing spyder python on windows 8

I would like to install spyder (the math IDE for python, here 2.7) on my windows 8.1 machine.
I did install python starting from http://www.python.org/download/releases/2.7.6/;
I did install pip after having installed setuptools, following http://www.pip-installer.org/en/latest/installing.html for these installations;
I did change my path to add C:\Python27 and C:\Python27\Scripts to it, digging into the advanced parameters of my PC's properties. (By the way, I can't beleive the way you do this on windows has not changed for ages, with such a small input where you forgot to go at the end of the value when adding your path...)
I did install spyder
pip install spyder
But when launching it in command line (it's in the path :-) ), I ran through this error:
RuntimeError: Please check Spyder installation requirements:
PyQt4 4.4+ (or PySide 1.1.1+) is required.
Which is truly true. Though,
when trying to pip PyQt4 :
No distributions at all found for PyQt4
when trying to pip PySide, I have many errors, the root one seeming that it is unable to find nmake
Any piece of advice ?

To install PySide on Windows you can choose from the following options:
Download and install the packages from the releases page.
Use setuptools to install the egg binary packages:
c:> c:\Python27\Scripts\easy_install PySide
Use pip to install the wheel binary packages:
c:> c:\Python27\Scripts\pip install --use-wheel PySide
Details are here https://pypi.python.org/pypi/PySide#installing-pyside-on-a-windows-system
BTW: PyQt does not support setuptools or pip

I am not sure if its a proper answer, but you might want to take a look at PythonXY. It makes all these installation procedure a breeze.

From the details in your question, it looks like you are missing both PyQt4 and Qt itself.
There are binary installers for Windows available from the PyQt download page. These installers include both PyQt and Qt (as well as various other tools such as Qt Designer). The only things not included are the Qt documentation, and Python itself (which you seem to have already installed).
Just be careful to select the right installer from the list of Binary Packages: i.e. the one for Python-2.7, plus whatever architecture is appropriate for your system.

Installing a package to Canopy

I'm really new to coding, programming, Python, and just computers in general, so I need some help with Canopy. I've been having pretty consistent troubles installing any packages to Canopy; some stuff is in the internal package manager,but whenever it isn't, it's really confusing. I guess I'll list a specific installation.
I'm trying to install "pywcs" (link provided below) to my Win7 64-bit machine. I have Cygwin if that helps at all. I do not know how to go about this; the stuff I found online is pretty confusing, and Cygwin easy_install (filename) never seems to work. Any step-by-step solutions?

The way I installed astropy is as follows.
Open Windows Terminal
Change Directory to C:\Users\<USER NAME>\AppData\Local\Enthought\Canopy32\User\Scripts
Type easy_install.exe astropy
Wait until the download completes, and restart Enthought.

sometimes installing packages can be hard for enthought canopy . You could install all python packages using pip install mrjob command on the its own canopy command prompt
Go to tools tab on the canopy editor ,
Left click on the canopy command prompt ,
Finally pip install <package name> and hit Enter key

The key point is that in order to install a package into any Python distribution (including Canopy Python), you should use that Python to perform the installation. You refer to Cygwin's "easy_install", but you should instead use Canopy's easy_install.
As described in this article, the easiest way to be sure that you are running Canopy's Python (and Canopy's easy_install) is to have Canopy Python on your PATH. This is done by default during Canopy installation, but if you uncheck this option then, or if your Cygwin installation doesn't use your Windows PATH, then you will need to adjust your Cygwin PATH accordingly.
Doing as Sukrit suggests, and running the installation from the Canopy Python Scripts directory, is also a reasonable approach.
Alternatively, depending on its compiler dependencies, you may be able to install astropy from a Windows Command Prompt rather than from Cygwin (of course Canopy must be on the PATH here too, as it would be by default.)

In Linux you can do it as follows.
1) Make sure you are using the Canopy version of Python - check out https://support.enthought.com/entries/23389761-Installing-packages-into-Canopy-User-Python-from-the-command-line
2) At the command prompt use easy_install, for example:
$ easy_install pp==1.5.7
to install version 1.5.7 of pp

Just for information, Astropy is now included by default in Enthought Canopy:
https://www.enthought.com/products/canopy/package-index/

Installing Python packages with 64 bit Windows and Python 3.3

I've read that there's a nice text-to-speech package called pyttsx that can be included in my Python scripts. As soon as I try to install pyttsx things start falling apart fast. pyttsx is for Python 2.6 (2.7 maybe?) not 3.3. I have 2.7 and 3.3 (also Portable Python 2.7 and 3.2) installed but I can't get setuptools or easy_install to work. I got distribute partly installed but I'm might have seen some errors at the end of its installation so I'm not sure it's working and it won't install pyttsx anyway. There's a Windows .exe program that will let you install Python packages but it won't work for 64-bit Python. I've been searching for answers for days can can't come up with anything specific enough.
How do I install Python packages with 64-bit Python 3.3 on 64-bit Windows 7, or is that even possible?

Best source ever!
this man is a wicked fellow.

With distribute installed, launch the python.exe you want to use.
From within python interactive, run the following code:
from setuptools.command import easy_install
easy_install.main(["-U", "package"])
Substitute "package" for whatever you wish to install.