Class can contain only one method __enter__(self) to be Context manager?

The process of pickling in Python includes:

Operator with applies only for work with files?

For reading xml-format we can use method loads from module xml

For reading json-format we can use method loads from module json

For reading from csv-format we can use  method loads from csv module

Operator with can be applied for any iterable object 

What is the output the following?

list = ["item1", 1, "item3"]   # line 1

with list as a:                   # line 2

    print(a)                        # line 3

1. Follow the link: https://classroom.github.com/a/1a2Fc0jK

2. After the repository is created, clone it locally:

   git clone <your repository URL>
    

3. Implement the following task in the university.py file:

          You are given two JSON files:

• • users.json — contains information about users in the following format:

• • departments.json — contains information about departments in the following format:

    [ { "id": 1, "name": "departmentName" }, ... ]          

          Create appropriate JSON Schemas to validate the structure of users.json and  departments.json.

           Implement the functions:

• user_with_department(csv_file, user_json, department_json):

                    This function should:

• • • Read data from the provided JSON files.

    • Create a CSV file with the following format:

• • • If a user refers to a department_id that doesn't exist in departments.json, raise a DepartmentName exception.

    • If the data does not match the schema, raise an InvalidInstanceError exception.

• validate_json(data, schema):

which validates a JSON instance against a schema.

1. Commit and push your solution to the GitHub repository.

What will the output be from the following code?