Exception Type: UnboundLocalError Exception Value:
local variable 'list' referenced before assignment
Hi, I'm trying to convert my pandas DataFrame into a simple list in
Views.py and send it to template. But Django complains and I don't know
how to make it happy. Because when I do *"global list"* then I get the
below error instead which says that I cannot use variable list when I
google for it. How do I convert my DataFrame into a list that Django can
work with?
Exception Type: TypeError Exception Value:
'list' object is not callable
#_______________________________________________________________________________
...
...
from django.db.models import Count
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
pd.set_option('max_columns', 50)
from magazine.models import Publication, Article
#_______________________________________________________________________________
def index(request):
# Publication list
publications = Publication.objects.all()
# Articles list with Many-to-many relationship to Publication table
# for counting how many publications each article was in.
articles =
Article.objects.all().annotate(num_publications=Count('publications'))
# There is a total of 5 Publications in the database.
total_publicists = Publication.objects.all().count()
#--------------------------------------------
### Leo magic
articles_list = [(article,
float(article.num_publications)/total_publicists*100) for article in
articles]
#--------------------------------------------
*articles_list3* = [(article.id, article,
float(article.num_publications)/total_publicists*100) for article in
articles]
df = pd.DataFrame(articles_list3)
df['FRACTION'] = df[2]-df[0]
* #global list b = map(list, df.values)*
...
...
context = {'articles_list':articles_list, 'publications':publications,
'total_publicists':total_publicists, 'articles':articles,
'uncommented_publications':uncommented_publications,
'articles_list2':articles_list2, 'b':b}
return render(request, 'magazine/index.html', context)
#_______________________________________________________________________________
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