Question

Use the Design Recipe to define a function save_history which consumes two parameters, a nested list and an int representing the current landing attempt. The function should open a new file named LandingNN.csv' where NN is two digits representing the current landing attempt. The first line should contain the number of sublists in the nested list. Each sublists should be written to the file on its own line with its values separated by commas. This function should close the file when its finished writing to it. Include a docstring! For example: contents of file Landing01.csv Test 4 history - 13.61, 2.98, 15, 0], [3.01, 0.6, 14, 1], [0.79, 2.22, 14, 0], o, 3.84, 14, 2]].61,2.9815,0 saseonystorythtstorysj 15. e]. 3.01, 0.6, 14, 1. [0.79, 2.22, 14,°]. CO, 3.84, 14, 21 3.01,0.6,14,1 0.79,2.22,14,0 0,3.85,14,2 Note: When running your code, you can call the pre-defined function show-file contents(filename) to view the contents of the file you saved. For example to view the contents of Landing01.csv' use this statement: show_file_contents ('Landing01.csv')

Python Language !

Answer 1

ㅑ save history.py-D:/Coding/PYTHON/save history.py (3.6.2) File Edit Format Run Options Window Help def save history (nl,a): #Form the file name name -Landing if a<10: name -name+0+str (a).CSv else: name -name+str (a) +.CSV #Length of the list s = len (n1) f - open (name, "w') #Write the list length f.write (str (s)n' #For all the lists, add it to the fild for 1st in nl: f.write (','.join (Istr (x) for x in 1st]'In') f.flush () f.close(

OUTPUT :

RESTART: D:/Coding/PYTHON/save history.py >>> save history (I[1,2],13,41,15, 611,15) RESTART: D:/Coding/PYTHON/save history.py ะะะะะ.tt.ะะะะ.tt t. >>save history ([[1,21, [3,41, [5, 6]1,15)

CODE :

def save_history(nl,a):
    #Form the file name
    name = 'Landing'
    if a<10:
        name = name+'0'+str(a)+'.csv'
    else:
        name = name+str(a)+'.csv'
    #Length of the list
    s = len(nl)
    f = open(name,'w')
    #Write the list length
    f.write(str(s)+'\n')
    #For all the lists, add it to the file
    for lst in nl:
        f.write(','.join([str(x) for x in lst])+'\n')
    f.flush()
    f.close()