17.1 (Create a text file) Write a program to create a file named Exercies 17_01.txt if it does not exist. Append data to it if it already exists. Write 100 integers created randomly into the file using text I/O. Integers are separated by a space.
In order to create a text file named “Exercise 17_01.txt” and append data to it if it already exists, we need to write a program that handles file operations using text input/output (I/O).
Text I/O operations can be performed using the built-in Python module called “fileinput”. This module provides an easy way to interact with text files by offering various methods and functions.
To start, we need to import the “fileinput” module at the beginning of our program. We can then use the “open()” function to create or append to the file. Additionally, the “random” module is necessary to generate random integers.
To write 100 integers randomly into the file, we can use a loop that iterates 100 times. Inside the loop, we generate a random integer using the “randint()” function from the “random” module. This integer is then written into the file, separated by a space.
Here is an example implementation in Python:
# Open the file in append mode, creating it if it doesn’t exist
with open(“Exercise 17_01.txt”, “a”) as file:
# Write 100 integers into the file
for _ in range(100):
# Generate a random integer between 1 and 100
random_integer = random.randint(1, 100)
# Write the integer into the file, followed by a space
file.write(str(random_integer) + ” “)
In this code, the file is opened using the “with open()” statement, which ensures proper file handling and automatically closes the file when we are done. The file is opened in “a” mode, which stands for “append”. This means that if the file exists, new data will be appended to it, and if it doesn’t exist, a new file will be created.
Inside the loop, we generate a random integer using the “random.randint()” function. We specify the range from 1 to 100, as you mentioned in the question. The random integer is then converted to a string using the “str()” function and concatenated with a space. This concatenated string is then written into the file using the “file.write()” method.
After the loop finishes execution, the file will contain 100 randomly generated integers, each separated by a space.
I hope this explanation helps you understand how to create a file named “Exercise 17_01.txt” and append data to it if it already exists. Let me know if you have any further questions!
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