#Exctract month and create a dedicated column df["Month"] from a
#column in datetime format df["Date"]
df['Month'] = pd.DatetimeIndex(df['Date']).month
import numpy as np
month_number = 4
month_name = np.choose(month_number - 1, pd.date_range(start=0, freq='M', periods=12).month_name())month_number = 4
month_name = pd.np.choose(month_number - 1, pd.date_range(start=0, freq='M', periods=12).month_name())import numpy as np
month_number = 4
month_name = np.choose(month_number - 1, pd.date_range(start=0, freq='M', periods=12).month_name())