df['range'] = df['range'].str.replace(',','-')
# this will replace "Boston Celtics" with "Omega Warrior"
df.replace(to_replace ="Boston Celtics",
value ="Omega Warrior")
df['prod_type'] = df['prod_type'].replace({'respon':'responsive', 'r':'responsive'})
df.replace([np.inf, -np.inf], np.nan)
df.replace([0, 1, 2, 3], [4, 3, 2, 1])