Develop

.flake8

@@ -1,7 +1,7 @@
-[flake8]
-inline-quotes = "
-ignore = E203, E266, W503, ANN002, ANN003, ANN101, ANN102, ANN401, N807, N818
-max-line-length = 79
-max-complexity = 18
-select = B,C,E,F,W,T4,B9,ANN,Q0,N8,VNE
-exclude = venv, tests
+[flake8]
+inline-quotes = "
+ignore = E203, E266, W503, ANN002, ANN003, ANN101, ANN102, ANN401, N807, N818
+max-line-length = 79
+max-complexity = 18
+select = B,C,E,F,W,T4,B9,ANN,Q0,N8,VNE
+exclude = venv, tests

.github/workflows/test.yml

@@ -1,37 +1,37 @@
-name: Test
-
-on: [push, pull_request_target]
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repo
-        uses: actions/checkout@v2
-        with:
-          ref: ${{github.event.pull_request.head.ref}}
-          repository: ${{github.event.pull_request.head.repo.full_name}}
-
-      - name: Set Up Python 3.14
-        uses: actions/setup-python@v2
-        with:
-          python-version: "3.14"
-
-      - name: Install pytest and flake8
-        run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements.txt
-      - name: Run flake8
-        run: flake8 app/
-      - name: Run tests
-        timeout-minutes: 5
-        run: pytest tests/
-      - uses: mate-academy/auto-approve-action@v2
-        if: ${{ github.event.pull_request && success() }}
-        with:
-          github-token: ${{ github.token }}
-      - uses: mate-academy/auto-reject-action@v2
-        if: ${{ github.event.pull_request && failure() }}
-        with:
-          github-token: ${{ github.token }}
+name: Test
+
+on: [push, pull_request_target]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+        with:
+          ref: ${{github.event.pull_request.head.ref}}
+          repository: ${{github.event.pull_request.head.repo.full_name}}
+
+      - name: Set Up Python 3.14
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.14"
+
+      - name: Install pytest and flake8
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+      - name: Run flake8
+        run: flake8 app/
+      - name: Run tests
+        timeout-minutes: 5
+        run: pytest tests/
+      - uses: mate-academy/auto-approve-action@v2
+        if: ${{ github.event.pull_request && success() }}
+        with:
+          github-token: ${{ github.token }}
+      - uses: mate-academy/auto-reject-action@v2
+        if: ${{ github.event.pull_request && failure() }}
+        with:
+          github-token: ${{ github.token }}

.gitignore

@@ -1,9 +1,9 @@
-.idea/
-.vscode/
-*.iml
-.env
-.DS_Store
-venv/
-.pytest_cache/
-**__pycache__/
-.pickle/
+.idea/
+.vscode/
+*.iml
+.env
+.DS_Store
+venv/
+.pytest_cache/
+**__pycache__/
+.pickle/

README.md

@@ -1,89 +1,89 @@
-# Management System
-**Please note:** read [the guideline](https://github.com/mate-academy/py-task-guideline/blob/main/README.md)
-before starting.
-
-
-The Technical Lyceum plans to create a system for managing information about groups and students. 
-You have to implement the above system using the `dataclasses` module.
-
-
-You can import the module in such way:
-
-```python
-import dataclasses
-```
-
-Let`s implement 3 classes:
-
-1. **Specialty**
-
-It has the following attributes:
-
-- `name`;
-- `number`.
-
-2. **Student**
-
-It has the following attributes:
-
-- `first_name`;
-- `last_name`;
-- `birth_date` ;
-- `average_mark` — average score of the previous year (or average score of entrance exams for the first-course students), float number;
-- `has_scholarship` — information on whether the student receives a scholarship. This is a bool value;
-- `phone_number`;
-- `address`.
-
-**Please note:** to import datetime, use the following syntax:
-
-```python
-from datetime import datetime
-```
-
-3. **Group**
-
-It has the following attributes:
-
-- `specialty` - instance of the `Specialty`class;
-- `course` - course number/year of study;
-- `students` - list of students studying in this group. This should be a list of instances of the `Student` class.
-
-
-Also implement 4 functions, using module `pickle` in this way:
-
-```python
-import pickle
-```
-
-1. **write_groups_information**
-
-This function writes all inputted information about the Lyceum groups to the file named `"groups.pickle"`. 
-The input is a list of the `Group` class instances. 
-This function returns the maximum number of students from all the groups.
-
-
-2. **write_students_information**
-
-This function writes information about students to the `"students.pickle"` file. 
-You should store all the students in one file. The input is a list of the `Student` class instances. 
-This function returns the number of students.
-
-3. **read_groups_information**
-
-This function reads data from the `"groups.pickle"` file. 
-It returns all group's specialties' names without repetition.
-
-4. **read_students_information** 
-
-This function reads data from the `"students.pickle"` file. 
-It returns a list of all the `Student` class instances.
-
-<details>
-  <summary><strong>Hint</strong></summary>
-
-   The `pickle` module returns only one recorded object.
-   It is necessary to implement the reading of each instance from the file for the `read_students_information` and `read_groups_information` functions.
-
-</details>
-
-Implement the described task [here](app/main.py)
+# Management System
+**Please note:** read [the guideline](https://github.com/mate-academy/py-task-guideline/blob/main/README.md)
+before starting.
+
+
+The Technical Lyceum plans to create a system for managing information about groups and students. 
+You have to implement the above system using the `dataclasses` module.
+
+
+You can import the module in such way:
+ 
+```python
+import dataclasses
+```
+ 
+Let`s implement 3 classes:
+ 
+1. **Specialty**
+
+It has the following attributes:
+
+- `name`;
+- `number`.
+ 
+2. **Student**
+
+It has the following attributes:
+
+- `first_name`;
+- `last_name`;
+- `birth_date` ;
+- `average_mark` — average score of the previous year (or average score of entrance exams for the first-course students), float number;
+- `has_scholarship` — information on whether the student receives a scholarship. This is a bool value;
+- `phone_number`;
+- `address`.
+
+**Please note:** to import datetime, use the following syntax:
+
+```python
+from datetime import datetime
+```
+
+3. **Group**
+
+It has the following attributes:
+
+- `specialty` - instance of the `Specialty`class;
+- `course` - course number/year of study;
+- `students` - list of students studying in this group. This should be a list of instances of the `Student` class.
+
+
+Also implement 4 functions, using module `pickle` in this way:
+
+```python
+import pickle
+```
+ 
+1. **write_groups_information**
+
+This function writes all inputted information about the Lyceum groups to the file named `"groups.pickle"`. 
+The input is a list of the `Group` class instances. 
+This function returns the maximum number of students from all the groups.
+
+
+2. **write_students_information**
+
+This function writes information about students to the `"students.pickle"` file. 
+You should store all the students in one file. The input is a list of the `Student` class instances. 
+This function returns the number of students.
+ 
+3. **read_groups_information**
+
+This function reads data from the `"groups.pickle"` file. 
+It returns all group's specialties' names without repetition.
+
+4. **read_students_information** 
+
+This function reads data from the `"students.pickle"` file. 
+It returns a list of all the `Student` class instances.
+
+<details>
+  <summary><strong>Hint</strong></summary>
+  
+   The `pickle` module returns only one recorded object.
+   It is necessary to implement the reading of each instance from the file for the `read_students_information` and `read_groups_information` functions.
+
+</details>
+
+Implement the described task [here](app/main.py)

app/main.py

@@ -1 +1,60 @@
-# write your code here
+from dataclasses import dataclass
+from datetime import datetime
+import pickle
+
+
+@dataclass
+class Specialty:
+    name: str
+    number: int
+
+
+@dataclass
+class Student:
+    first_name: str
+    last_name: str
+    birth_date: datetime
+    average_mark: float
+    has_scholarship: bool
+    phone_number: int
+    address: str
+
+
+@dataclass
+class Group:
+    specialty: Specialty
+    students: list[Student]
+    course: int
+
+
+def write_groups_information(groups: list[Group]) -> int:
+    with open("groups.pickle", "wb") as file:
+        pickle.dump(groups, file)
+        if not groups:
+            return 0
+        return max(len(g.students) for g in groups)
+
+
+def write_students_information(students: list[Student]) -> int:
+    with open("students.pickle", "wb") as file:
+        pickle.dump(students, file)
+        return len(students)
+
+
+def read_groups_information() -> list[str]:
+    with open("groups.pickle", "rb") as file:
+        groups = pickle.load(file)
+        groups_specialty = []
+        for grp in groups:
+            grp = grp.specialty.name
+            if not grp:
+                continue
+            groups_specialty.append(grp)
+        groups_specialty = list(set(groups_specialty))
+        return groups_specialty
+
+
+def read_students_information() -> list[Student]:
+    with open("students.pickle", "rb") as file:
+        students = pickle.load(file)
+        return students

requirements.txt

@@ -1,6 +1,6 @@
-flake8
-flake8-annotations
-flake8-quotes
-flake8-variables-names
-pep8-naming
-pytest
+flake8
+flake8-annotations
+flake8-quotes
+flake8-variables-names
+pep8-naming
+pytest