Question

Task 1: Reading files Part A - Read a word Implement a function word from.file(file) that takes a file as input and returns the first word in the file. Hint: the string methods split and strip will be useful. Example: calling word from file('files/task1A.txt') returns 'Once'. Part B - Read a table Implement a function nested int.list from file(file) that takes a file containing lines of integers that are separated by commas as input and returns the file contents formatted as a nested list in Python. Note that the numbers should be converted into integers. Example: calling nested int.list.from_file('files/task1B.txt' returns ((2,1,3), (3,1,3], [2,9]].

Answer 1

Part A:

def word_from_file(file):
file1 = open(file, mode = 'r') # 'r' is to read
text = file1.read()
file1.close()
return text.split()[0].strip()

In [16]: def word_from_file(file): file1 = open(file, mode = 'r') # 'r' is to read text = file1.read() file1.close() return text.split([0].strip) In [17]: print(word_from_file('file.txt')) ddss

Part B:

import ast #to remove the quotation marks at the starting and end of individual list
def nested_int_list_from_file(file):
file1 = open(file, mode = 'r') # 'r' is to read
num_lines = file1.readlines() #to read all the lines at instance from the file
file1.close()
numbers_list = [] #intializing an empty string
for line in num_lines:
c = ast.literal_eval("["+''.join(line.strip().split())+"]")
numbers_list.append(c) #appending to the empty list
return numbers_list