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Count number of matches in pairs of pandas dataframe rows

I have been trying to count the number of times different values in a row of dataframe matches with column-wise values in other rows and provide an output. To illustrate, I have a dataframe (df_testing) as follows: I am looking to count the number of exact matches among rows for values in Col_1 to Col_4. For …

Fill color in single cells in a networkx graph

I’ve build a graph with networkx, that looks like this: Graph I want to fill every singel cell with a specified color. The Graph was drawn by nx.draw_networkx_edges() (returns a LineCollection). I found a similar question here (Fill area between lines), but the solution in the comments, doesn’t wo…

Error: __str__ returned non-string (type ModelName) in Django

I am attempting to create an issue tracker similar to github’s. I’m stuck on trying to implement the assigning feature, here’s what I have so far admin page I feel like I’m close, however when I try to use I get the error of Anyone ideas on how to fix this? Thank you. Answer ERROR DESC…