how to get upto six decimal places in python code example

Example 1: give answer in 6 decimal python

print("{:.6f}".format(variable_name))

Example 2: print 2 decimal places python

print("{0:.2f}".format(sum(query_marks)/len(query_marks)))

Example 3: how to print answer 2 decimal places in python 3

print("{0:.2f}".format(sum(student_marks[query_name])/3))