updated to mysql-connector-python

README.md

@@ -6,41 +6,41 @@ Tables 9.3–9.5 (STUDENT, GUARDIAN, ATTENDANCE).
 
 ## What it does on startup
 
-1. Connects to the MySQL server at `10.0.1.40:3306`.
+1. Connects to the MySQL server at `10.10.0.160:3306`.
 2. Verifies the `student_db` database exists — creates it if not.
 3. Verifies the `GUARDIAN`, `STUDENT`, and `ATTENDANCE` tables exist
-   (in that order, since STUDENT references GUARDIAN and ATTENDANCE
-   references STUDENT) — creates any that are missing, with the exact
-   data types and constraints from the schema (primary keys, foreign
-   keys, `NOT NULL`, `UNIQUE` on `GPhone`, and the composite primary key
-   `(AttendanceDate, RollNumber)` on ATTENDANCE).
+	(in that order, since STUDENT references GUARDIAN and ATTENDANCE
+	references STUDENT) — creates any that are missing, with the exact
+	data types and constraints from the schema (primary keys, foreign
+	keys, `NOT NULL`, `UNIQUE` on `GPhone`, and the composite primary key
+	`(AttendanceDate, RollNumber)` on ATTENDANCE).
 4. Launches an interactive menu for Create / Read / Update / Delete.
 
 ## Setup
 
 1. Install the one dependency:
 
-   ```bash
-   pip install -r requirements.txt
-   ```
+	```bash
+	pip install -r requirements.txt
+	```
 
 2. Set your MySQL credentials as environment variables (the host/port/
-   database default to the assignment's values already):
+	database default to the assignment's values already):
 
-   ```bash
-   export DB_USER=root
-   export DB_PASSWORD=your_password_here
-   # optional overrides — these already default correctly:
-   # export DB_HOST=10.0.1.40
-   # export DB_PORT=3306
-   # export DB_NAME=student_db
-   ```
+	```bash
+	export DB_USER=root
+	export DB_PASSWORD=your_password_here
+	# optional overrides — these already default correctly:
+	# export DB_HOST=10.10.0.160
+	# export DB_PORT=3306
+	# export DB_NAME=student_db
+	```
 
 3. Run it:
 
-   ```bash
-   python3 main.py
-   ```
+	```bash
+	python3 main.py
+	```
 
 ## Files
 
@@ -72,12 +72,6 @@ cascades and removes their attendance records automatically.
 
 ## Notes
 
-- Uses [PyMySQL](https://pymysql.readthedocs.io/), a pure-Python MySQL
-  client — no system libraries (like `libmysqlclient`) required.
-- All input is validated against the schema's constraints (max lengths,
-  digit counts, date format, P/A status) before hitting the database,
-  and database-level errors (duplicate keys, foreign key violations)
-  are caught and shown as friendly messages rather than crashing.
-- Tested end-to-end (connect → create DB/tables → full CRUD → constraint
-  error handling → cascade delete) against a local MySQL/MariaDB
-  instance before delivery.
+- Uses [mysql-connector-python](https://dev.mysql.com/doc/connector-python/en/), Oracle's official pure-Python MySQL driver — no system libraries (like `libmysqlclient`) required.
+- All input is validated against the schema's constraints (max lengths, digit counts, date format, P/A status) before hitting the database, and database-level errors (duplicate keys, foreign key violations) are caught and shown as friendly messages rather than crashing.
+- Tested end-to-end (connect → create DB/tables → full CRUD → constraint error handling → cascade delete) against a local MySQL/MariaDB instance before delivery.