python-input_output

Python - Input/Output

Description

• tests/ - Main functions provided by Holberton School to test the files and .txt or .json files to manage them.

Tasks

• 0. Read file
  • 0-read_file.py - Function that reads a text file (UTF8) and prints it to stdout.
• 1. Write to a file
  • 1-write_file.py - Function that writes a string to a text file (UTF8) and returns the number of characters written.
• 2. Append to a file
  • 2-append_write.py - Function that appends a string at the end of a text file (UTF8) and returns the number of characters added.
• 3. To JSON string
  • 3-to_json_string.py - Function that returns the JSON representation of an object (string).
• 4. From JSON string to Object
  • 4-from_json_string.py - Function that returns an object (Python data structure) represented by a JSON string.
• 5. Save Object to a file
  • 5-save_to_json_file.py - Function that writes an Object to a text file, using a JSON representation.
• 6. Create object from a JSON file
  • 6-load_from_json_file.py - Function that creates an Object from a “JSON file”.
• 7. Load, add, save
  • 7-add_item.py - Script that adds all arguments to a Python list, and then save them to a file.
• 8. Class to JSON
  • 8-class_to_json.py - Function that returns the dictionary description with simple data structure (list, dictionary, string, integer and boolean) for JSON serialization of an object.
• 9. Student to JSON
  • 9-student.py - Class Student that defines a student with:
    • Public instance attributes first_name, last_name, and age.
    • Instantiation with first_name, last_name, and age: def __init__(self, first_name, last_name, age).
    • Public method def to_json(self) that retrieves a dictionary representation of a Student instance.
• 10. Student to JSON with filter
  • 10-student.py - Class Student that defines a student. Based on 9-student.py with:
    • Public method def to_json(self, attrs=None) that retrieves a dictionary representation of a Student instance.
    • If attrs is a list of strings, only attribute names contained in this list must be retrieved. Otherwise, all attributes must be retrieved.
• 11. Student to disk and reload
  • 11-student.py - Class Student that defines a student. Based on 10-student.py with:
    • Public method def reload_from_json(self, json) that replaces all attributes of the Student instance using the key/value pairs listed in json.
    • The method assumes json is a dictionary containing attributes with name/value corresponding to key/value.
• 12. Pascal's Triangle
  • 12-pascal_triangle.py - Function that returns a list of lists of integers representing the Pascal’s triangle of n.

Author

• Felipe Villamizar - GitHub