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()
Question
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()
Solution
To write data to a file in Python, you can follow these steps:
-
Open the file in write mode. This can be done using the built-in
open()function, with the first argument being the filename and the second argument being the mode, which should be 'w' for write. For example:file = open('filename.txt', 'w'). -
Write data to the file. This can be done using the
write()method of the file object. You need to pass the data you want to write to the file as a string to this method. For example:file.write('Hello, world!'). -
Close the file. This is important to ensure that the changes you made to the file are saved. You can close the file using the
close()method of the file object. For example:file.close().
So, the correct answer to your question is:
c. file.write(data) d. file.close()
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python programs to create, read, write, append and delete a file
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.
Which mode is used in the open() function to write data to a file in Python?
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