What's a more pythonic or efficent way of removing the last element of each list, in a dictionary of lists?
For example, take this:
listDict = {'tom': [-2,10,2,-8], 'sam': [-9,-10,-10,-7]}
And transform it into this:
listDict = {'tom': [-2,10,2], 'sam': [-9,-10,-10]}
This is what I'm currently doing:
new = {}
for t,item in listDict.iteritems():
new[t] = [item[0], item[1], item[2]]
listDict= new
If you are able to use pandas, given this dict:
listDict = {'tom': [-2,10,2,-8], 'sam': [-9,-10,-10,-7]}
Remove the last element like so:
import pandas
df = pandas.DataFrame(data=listDict)
new = df[:-1]
print(new)
Which produces:
tom sam
0 -2 -9
1 10 -10
2 2 -10
If you want it as a dict then:
print(new.to_dict('list'))
Which produces:
{'tom': [-2, 10, 2], 'sam': [-9, -10, -10]}