how to continue line in python using backslash?

 Introduction:

According to pep-8 style, a line in python should be less than 79 characters. But many times, you can't finish a line within that. So what will be the solution for that?

Solution: 

The solution is to continue the line by breaking it after some operator or a space. But to make sense that this is part of the same line; you need to provide backslash ("\") at the line end. 

Example:

turn this following line:

dataframe = prev_data.groupby(['cust_id','edge_id','edge_date']).mean().reset_index()

into:

dataframe = prev_data.groupby(['cust_id', \
                     'edge_id','edge_date']).mean().reset_index()

using backslash line break.

Now you can write more clearer and nice pretty code using line break. Thanks for reading!