I'm trying to run the following code, but I keep getting a Syntax Error. It runs sometimes on iPython notebook, but it's not stable.
The code is supposed to get a bubble chart of the variables set.
%matplotlib inline
import pandas as pd
import numpy as np
df = pd.read_csv('effort.csv')
df.plot(kind='scatter', x='setting', y='effort', s=df['country']*df['change']);