If you want high performance with a minimal code footprint, look no farther than Python’s built-in plotting library tkinter. No need to write special C / C++ code or use a large plotting package to get performance much better than 50 fps. The following code scrolls a 1000×200 strip chart at 400 fps on a … Read more
This works: In [1]: import matplotlib.pyplot as plt In [2]: plt.plot([1,2,3],[4,5,6]) Out[2]: [<matplotlib.lines.Line2D at 0x30b2b10>] In [3]: ax = plt.gca() # get axis handle In [4]: line = ax.lines[0] # get the first line, there might be more In [5]: line.get_xdata() Out[5]: array([1, 2, 3]) In [6]: line.get_ydata() Out[6]: array([4, 5, 6]) In [7]: line.get_xydata() … Read more
I put this in all my setup.py scripts: distutils.core.setup( options = { “py2exe”: { “dll_excludes”: [“MSVCP90.dll”] } }, … ) This keeps py2exe quiet, but you still need to make sure that dll is on the user’s machine.
Looks like OpenGL is trying to report some error on Win2003, however you’ve not configured your system where to output logging info. You can add the following to the beginning of your program and you’ll see details of the error in stderr. import logging logging.basicConfig() Checkout documentation on logging module to get more config info, … Read more
For Windows & Gnome Here ya go! wxPython is the bomb. Adapted from the source of my Feed Notifier application. import wx TRAY_TOOLTIP = ‘System Tray Demo’ TRAY_ICON = ‘icon.png’ def create_menu_item(menu, label, func): item = wx.MenuItem(menu, -1, label) menu.Bind(wx.EVT_MENU, func, id=item.GetId()) menu.AppendItem(item) return item class TaskBarIcon(wx.TaskBarIcon): def __init__(self): super(TaskBarIcon, self).__init__() self.set_icon(TRAY_ICON) self.Bind(wx.EVT_TASKBAR_LEFT_DOWN, self.on_left_down) def … Read more
Each Tcl interpreter object (i.e., the context that knows how to run a Tcl procedure) can only be safely used from the OS thread that creates it. This is because Tcl doesn’t use a global interpreter lock like Python, and instead makes extensive use of thread-specific data to reduce the number of locks required internally. … Read more
The short answer is no, creating two pygame windows in the same process is not possible (as of April 2015). If you want to run two windows with one process, you should look into pyglet or cocos2d. An alternative, if you must use pygame, is to use inter-process communication. You can have two processes, each … Read more
Threaded stoppable function Instead of subclassing threading.Thread, one can modify the function to allow stopping by a flag. We need an object, accessible to running function, to which we set the flag to stop running. We can use threading.currentThread() object. import threading import time def doit(arg): t = threading.currentThread() while getattr(t, “do_run”, True): print (“working … Read more
This is a minimal example for a Panel with a matplotlib canvas: from numpy import arange, sin, pi import matplotlib matplotlib.use(‘WXAgg’) from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas from matplotlib.backends.backend_wx import NavigationToolbar2Wx from matplotlib.figure import Figure import wx class CanvasPanel(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) self.figure = Figure() self.axes = self.figure.add_subplot(111) self.canvas = FigureCanvas(self, -1, self.figure) … Read more
I’d recommend not using images2gif from visvis because it has problems with PIL/Pillow and is not actively maintained (I should know, because I am the author). Instead, please use imageio, which was developed to solve this problem and more, and is intended to stay. Quick and dirty solution: import imageio images = [] for filename … Read more