sample_list = ['a',1,('a','b')]

sample_list = ['a','b',0,1,3]

value_start = sample_list[0]
end_value = sample_list[-1]

del sample_list[0]

sample_list[0:0] = ['sample value']

list_length = len(sample_list)

for element in sample_list:
    print(element)

num_inc_list = range(30)
#will return a list [0,1,2,...,29]

initial_value = 0
list_length = 5
sample_list = [ initial_value for i in range(10)]
sample_list = [initial_value]*list_length
# sample_list ==[0,0,0,0,0]