Install for windows (FAQ?)

[jonathan cano]

I've used python in the distant past on Linux and FreeBSD.  I know the language but have no recollection of install and package management norms.

I have not used python on windows.

I want to use pyqtgraph on my Windows 7 machine.  What do I need to install and in what order?  Here is my guess

1. Python for windows (2.7 or later?  Presumably 3.x is better)
2. QT for windows?
3. pyqtgraph (duh)

do I need to set any environment after installing various components?

[Luke Campagnola]

On Thu, Apr 17, 2014 at 3:27 PM, jonathan cano <fun...@gmail.com> wrote:

I've used python in the distant past on Linux and FreeBSD.  I know the language but have no recollection of install and package management norms.

I have not used python on windows.

I want to use pyqtgraph on my Windows 7 machine.  What do I need to install and in what order?  Here is my guess

1. Python 2.7 or 3.4 from python.org. You may pick either the 32- or 64-bit versions.

2. Latest numpy. The easiest place for these is: http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy

     Be sure to get the version that matches your python installation.

3. For pyqtgraph <=0.9.8, you will also need scipy: http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy

     If you want to use the latest development code instead, then scipy is no longer required.

4. PyQt4: http://www.riverbankcomputing.com/software/pyqt/download

     Note: The PyQt windows installer includes the necessary Qt DLLs. Alternatively, you may use PySide.

5. PyQtGraph. Version 0.9.8 can be found on the website, or you can pull the latest code from github:

        $ git clone https://github.com/pyqtgraph/pyqtgraph

 

do I need to set any environment after installing various components?

On windows, I usually add "C:\Python27" to the end of the PATH environment variable so that I can run python more easily from the command line.

[amdo...@gmail.com]

An alternative approach is to use the excellent WinPython distribution - http://winpython.sourceforge.net/. Its a single package you download that includes python, most of the popular packages (numpy, scipy, etc), and qt support (both PyQt and PySide). It does not include pyqtgraph by default, but the installer for version 0.9.8 can be used through WinPython's package manager to easily install it. Probably the easiest way to get it working.

Also, I've had fairly good luck doing Python 3, as most of the major packages support it now, and pyqtgraph seems to run well under it now.  

[Namarata Mohapatra]

I have downloaded : PyQtGraph. Version 0.9.8 can be found on the website, or you can pull the latest code from github:

        $ git clone https://github.com/pyqtgraph/pyqtgraph

For Windows X64. However I get an error with import pyqtgraph 

from .Qt import QtGui 

ImprortError : No module names Qt 

[Mathew Schwartz]

Did you install the pyQT 64 bit version?  also try 

from PyQt4 import QtCore, QtGui

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[Mathew Schwartz]

also that is an error with pyqt, not pyqtgraph, which you import as:

import pyqtgraph as pg

and for opengl;

import pyqtgraph.opengl as gl

[Luke Campagnola]

The ".Qt" module referenced above is pyqtgraph's internal wrapper around PyQt/PySide. It's hard to say exactly why it is failing, though. I suspect the package was not installed correctly or is not being invoked correctly. Can you give more information about what you have done:

* What are you running that produces this error? (also post the full traceback)

* What environment are you using invoke python (command line, IDE, etc)?

* How did you install pyqtgraph?

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