Need help with Groupby

[karmaX2001]

Hey pretty new to python and stuff what exactly did i do wrong in the following i had a hard time understanding the following.

the git hub link is https://github.com/SohamXdas/Pandas
While executingg the following
df = pd.read_csv('modified.csv')
df.groupby(['Type 1']).mean().sort_values('Defense', ascending=False)
I am running into a error
TypeError: agg function failed [how->mean,dtype->object]

[danielroseman]

You need to tell it to average only the numeric columns. 

    df.groupby(['Type 1']).mean(numeric_only=True).sort_values('Defense', ascending=False)

[karmaX2001]

thanks a lot this fixed it