如何在句子中打印pandas数据帧值

I have created a database using sqlite within python 2.7, and loaded the data into the pandas dataframe as below. What I'm trying to do is I would like to print the result as "The cities that are warmest in July are: Istanbul, Ankara, Izmir, Bursa". The code that I have written in Python is as below:I have created a database using sqlite within p