Reading and Writing Files: Attendance Records
Managing classroom data efficiently is a common task for teachers, and Python provides powerful tools for handling such data through file operations. By reading from and writing to text files, you can automate the process of recording and tracking attendance, making your workflow smoother and more reliable. Instead of manually updating attendance sheets, you can use simple python scripts to store, retrieve, and update student attendance records, ensuring accuracy and saving valuable time.
123456# Writing a list of student names to a text file as an attendance record student_names = ["Alice Johnson", "Ben Lee", "Cara Smith", "David Kim"] with open("attendance.txt", "w") as file: for name in student_names: file.write(name + "\n")
When working with files in Python, you use different file modes depending on your needs. The most common modes are:
- "r" for reading: opens the file for reading data;
- "w" for writing: creates a new file or overwrites an existing one;
- "a" for appending: adds new data to the end of the file without removing existing content.
Choosing the correct mode is important for managing classroom data safely. For example, use "w" when you want to start a fresh attendance record and "a" if you want to add new names to an existing list without deleting previous entries. Using "r" allows you to review or process attendance records already saved in the file.
1234# Reading the attendance record from the file and printing each student's name with open("attendance.txt", "r") as file: for line in file: print(line.strip())
1. What is the purpose of opening a file in 'write' mode?
2. How can file operations help teachers manage classroom data?
3. Which function is used to open a file in Python?
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Managing classroom data efficiently is a common task for teachers, and Python provides powerful tools for handling such data through file operations. By reading from and writing to text files, you can automate the process of recording and tracking attendance, making your workflow smoother and more reliable. Instead of manually updating attendance sheets, you can use simple python scripts to store, retrieve, and update student attendance records, ensuring accuracy and saving valuable time.
123456# Writing a list of student names to a text file as an attendance record student_names = ["Alice Johnson", "Ben Lee", "Cara Smith", "David Kim"] with open("attendance.txt", "w") as file: for name in student_names: file.write(name + "\n")
When working with files in Python, you use different file modes depending on your needs. The most common modes are:
- "r" for reading: opens the file for reading data;
- "w" for writing: creates a new file or overwrites an existing one;
- "a" for appending: adds new data to the end of the file without removing existing content.
Choosing the correct mode is important for managing classroom data safely. For example, use "w" when you want to start a fresh attendance record and "a" if you want to add new names to an existing list without deleting previous entries. Using "r" allows you to review or process attendance records already saved in the file.
1234# Reading the attendance record from the file and printing each student's name with open("attendance.txt", "r") as file: for line in file: print(line.strip())
1. What is the purpose of opening a file in 'write' mode?
2. How can file operations help teachers manage classroom data?
3. Which function is used to open a file in Python?
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