python programs to create, read, write, append and delete a file
Question
python programs to create, read, write, append and delete a file
Solution
Sure, here are Python programs for each of the operations you mentioned:
- Create a file:
file = open("newfile.txt", "w")
file.close()
This will create a new file named "newfile.txt" in the current directory.
- Read a file:
file = open("newfile.txt", "r")
print(file.read())
file.close()
This will read the file "newfile.txt" and print its contents.
- Write to a file:
file = open("newfile.txt", "w")
file.write("Hello, World!")
file.close()
This will write the string "Hello, World!" to the file "newfile.txt".
- Append to a file:
file = open("newfile.txt", "a")
file.write("\nThis is an appended line.")
file.close()
This will append the string "\nThis is an appended line." to the file "newfile.txt".
- Delete a file:
import os
os.remove("newfile.txt")
This will delete the file "newfile.txt". Be careful with this operation, as it cannot be undone.
Remember to always close the file after you're done with it to free up any system resources tied up by the file.
Similar Questions
How do you write data to a file in Python?Question 10Answera.file.read()b.file.append(data)c.file.write(data)d.file.close()
Copy contents of one file to another fileWrite a Python program that copies the content from one file to another file.Note: Take the input file name from the user.Aim:To create a Python program that reads a text file, copies its contents to another file, and prints the contents to the console.Algorithm:Step 1: Accept a filename input from the user and store it in the variable file.Step 2: Open the input file (file) in read mode and the output file ('OutputData3.txt') in write mode using the open() function.Step 3: Iterate through each line in the input file (fin).Write each line to the output file (fout).Step 4: Close both the input and output files using the close() method.Step 5: Open the output file ('OutputData3.txt') in read mode and store it in the variable fin.Step 6: Iterate through each line in the output file (fin).Print each line to the console.Step 7: Close the output file (fin).Step 8: End the program.Sample Test CasesTest Case 1:Expected Output:Enter·file·name:·InputData1.txtThis·is·this.That·is·this.·That·is·that.·This·is·That.Now·tell·me·what·is·that?And·what·is·this?Confused?Haha!!Test Case 2:Expected Output:Enter·file·name:·InputData2.txtIn·a·coastal·town,·a·lighthouse·stood·tall,holding·a·magical·secret.·The·lighthousewhispered·stories·to·the·sea,·guidinglost·ships·and·providing·comfort·toweary·sailors.
What method is used to read the entire content of a file in Python?Question 7Answera.file.write()b.file.append()c.file.read()d.file.close()
How do you append data to an existing file in Python?Question 8Answera.open(filename, 'b')b.open(filename, 'w')c.open(filename, 'a')d.open(filename, 'r')
Write a Python program to read a file line by line store it into an array.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.