Unable to load files using pickle and multiple modules
Each Answer to this Q is separated by one/two green lines. I’m trying to create a user system, which uses a setting and Gui module, and when the GUI module requests for the file...
Category: Python
Parameters of detectMultiScale in OpenCV using Python
Each Answer to this Q is separated by one/two green lines. I am not able to understand the parameters passed to detectMultiScale. I know that the general syntax is detectMultiScale(image, rejectLevels, levelWeights) However, what...
Python.h: No such file or directory
Each Answer to this Q is separated by one/two green lines. I recently installed KDevelop 4 for C++ development on my Macbook Pro running Ubuntu 12.04 LTS. I want to embed Python application in...
Appending two dataframes with same columns, different order
Each Answer to this Q is separated by one/two green lines. I have two pandas dataframes. noclickDF = DataFrame([[0, 123, 321], [0, 1543, 432]], columns=[‘click’, ‘id’, ‘location’]) clickDF = DataFrame([[1, 123, 421], [1, 1543,...
Colorbar for matplotlib plot_surface command
Each Answer to this Q is separated by one/two green lines. I have modified the mplot3d example code for my application with Paul’s help. The code reads: from mpl_toolkits.mplot3d import Axes3D import matplotlib.pyplot as...
how to multiply multiple columns by a column in Pandas
Each Answer to this Q is separated by one/two green lines. I would like to have: df[[‘income_1’, ‘income_2’]] * df[‘mtaz_proportion’] return those columns multiplied by df[‘mtaz_proportion’] so that I can set df[[‘mtaz_income_1’, ‘mtaz_income_2’]] =...
String formatting with “{0:d}”.format gives Unknown format code ‘d’ for object of type ‘float’
Each Answer to this Q is separated by one/two green lines. If I understood the docs correctly, in python 2.6.5 string formatting “{0:d}” would do the same as “%d” with the String.format() way of...
unittest.mock: asserting partial match for method argument
Each Answer to this Q is separated by one/two green lines. Rubyist writing Python here. I’ve got some code that looks kinda like this: result = database.Query(‘complicated sql with an id: %s’ % id)...
Python equivalent of zip for dictionaries
Each Answer to this Q is separated by one/two green lines. If I have these two lists: la = [1, 2, 3] lb = [4, 5, 6] I can iterate over them as follows:...
Django: How to get a time difference from the time post?
Each Answer to this Q is separated by one/two green lines. Say I have a class in model class Post(models.Model): time_posted = models.DateTimeField(auto_now_add=True, blank=True) def get_time_diff(self): timediff = timediff = datetime.datetime.now() – self.time_posted print...