Question

Write code that does the following: opens an output file with the filename number_list.txt, uses a loop to write the numbers 1 through 100 to the file, then closes the file.

Answer 1

Answer:

# create the file

filename = "Testfile.txt"

# for writing, we create the output file:

outPutfile = open(filename, "w")

# Writing numbers from 1-100

for item in range(1,101):

 outPutfile.write((str)(item))

outPutfile.close()

# printing the contents to verify it worked correctly

infile = open(filename, "r") #note the "r" indicates the mode

fileContents = infile.read()

infile.close()

print(fileContents)

Explanation:

• Define the working file fileName = TestFile
• Create the output file for writting outPutfile = open(filename, "w")
• Use a for loop to write numbers from 1-100 to the file outPutfile.write((str)(item))
• Close the file outPutfile.close()
• You may open the file read its content and print the contents to verify it worked correctly