import pandas as pd
df = pd.read_csv("2015_02_clickstream.tsv", sep='\t', header=0)
#we won't use ids here, so lets discard them
df = df[['prev_title', 'curr_title', 'n', 'type']]
df.columns = ['prev', 'curr', 'n', 'type']
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-0d2ce966656e> in <module>()
----> 1 import pandas as pd
      2 df = pd.read_csv("2015_02_clickstream.tsv", sep='\t', header=0)
      3 #we won't use ids here, so lets discard them
      4 df = df[['prev_title', 'curr_title', 'n', 'type']]
      5 df.columns = ['prev', 'curr', 'n', 'type']

ImportError: No module named 'pandas'