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python Programming Glossary: plDjango Query That Get Most Recent Objects From Different Categories http://stackoverflow.com/questions/2074514/django-query-that-get-most-recent-objects-from-different-categories most recent object created for each A object Here's an simplified example Class Bakery models.Model town models.CharField.. object created for each A object Here's an simplified example Class Bakery models.Model town models.CharField Class Cake.. no one step way of doing this in Django ORM. But you can split it in two queries bakeries Bakery.objects.annotate hottest_cake_baked_at..
AttributeError while adding colorbar in matplotlib http://stackoverflow.com/questions/2643953/attributeerror-while-adding-colorbar-in-matplotlib while adding colorbar in matplotlib The following code fails to run on Python 2.5.4 from matplotlib.. The following code fails to run on Python 2.5.4 from matplotlib import pylab as pl import numpy as np data np.random.rand.. to run on Python 2.5.4 from matplotlib import pylab as pl import numpy as np data np.random.rand 6 6 fig pl.figure 1 fig.clf..
fitting exponential decay with no initial guessing http://stackoverflow.com/questions/3938042/fitting-exponential-decay-with-no-initial-guessing to data Google search returned a few blog posts for example http exnumerus.blogspot.com 2010 04 how to fit exponential.. 2010 04 how to fit exponential decay example in.html but that solution requires y offset to be pre specified.. import numpy as np import scipy as sp import pylab as pl from scipy.optimize.minpack import curve_fit x np.array 50...
Cron works on local host but not when deployed Appengine http://stackoverflow.com/questions/4722315/cron-works-on-local-host-but-not-when-deployed-appengine works on local host but not when deployed Appengine I have a cron job in python that works on my.. job in python that works on my localhost but when it is deployed to appengine it no longer works. pl db.Query Venue .order.. but when it is deployed to appengine it no longer works. pl db.Query Venue .order id list pl.fetch limit 0 for p in pl base_url..
Python decorator, self is mixed up http://stackoverflow.com/questions/5469956/python-decorator-self-is-mixed-up class Session p.Session def __init__ self user passw self.pl p.Session user passw @cacher def get_something self print get_something.. print get_something called with self s self return self.pl.get_something s Session u p s.get_something When I run this.. ... AttributeError 'cacher' object has no attribute 'pl' for the line where I do self.cache fname self.f self args The..
http://stackoverflow.com/questions/6950456/how-to-create-a-dynamic-array array import time import numpy as np import pylab as pl def test_time func arrs func for i in xrange 2000 t for i in.. t t_list test_time lambda t_array test_time lambda array d pl.subplot 211 pl.plot t_list label list pl.plot t_array label.. test_time lambda t_array test_time lambda array d pl.subplot 211 pl.plot t_list label list pl.plot t_array label array..
Plot with non-numerical data on x axis (for ex., dates) http://stackoverflow.com/questions/6974847/plot-with-non-numerical-data-on-x-axis-for-ex-dates non numerical data on x axis for ex. dates I'd like to plot numerical data against non numerical data say something like.. non numerical data say something like this import matplotlib.pyplot as pl x 'a' 'b' 'c' 'd' y 1 2 3 4 pl.plot x y However.. numerical data say something like this import matplotlib.pyplot as pl x 'a' 'b' 'c' 'd' y 1 2 3 4 pl.plot x y However with..
Matplotlib: how to set the current figure? http://stackoverflow.com/questions/7986567/matplotlib-how-to-set-the-current-figure how to set the current figure This is hopefully a simple.. how to set the current figure This is hopefully a simple question but I can't figure it out at the moment. I want to.. but I can't figure it out at the moment. I want to use matplotlib to show 2 figures and then use them interactively. I create..
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