nested list comprehension with args code example

Example 1: pandas list comprehension

# Subtract 1 from row, for each row in df.year
df['previous_year'] = [row-1 for row in df['year']]

Example 2: list comprehension

# List comprehension 

        
list_comp = [i+3 for i in range(20)]

# above code is similar to 

for i in range(20):
	print(i + 3)