0x05-python-exceptions

Python - Exceptions

In this project, I learned handling errors and exceptions in Python with try and except.

Tests ✔️

• tests: Folder of test files. Provided by Holberton School.

Function Prototypes 💾

Prototypes for functions written in this project:

File	Prototype
0-safe_print_list.py	def safe_print_list(my_list=[], x=0):
1-safe_print_integer.py	def safe_print_integer(value):
2-safe_print_list_integers.py	def safe_print_list_integers(my_list=[], x=0):
3-safe_print_division.py	def safe_print_division(a, b):
4-list_division.py	def list_division(my_list_1, my_list_2, list_length):
5-raise_exception.py	def raise_exception():
6-raise_exception_msg.py	def raise_exception_msg(message=""):
100-safe_print_integer_err.py	def safe_print_integer_err(value):
101-safe_function.py	def safe_function(fct, *args):
102-magic_calculation.py	def magic_calculation(a, b);
103-python.c	void print_python_list(PyObject *p); void print_python_bytes(PyObject *p); void print_python_float(PyObject *p);

Tasks 📃

• 0. Safe list printing

  • 0-safe_print_list.py: Python function that prints x elements of a list on the same line, followed by a new line.
  • The parameter x represents the number of elements to print - can be bigger than the length of my_list.
  • Returns the real number of elements printed.
  • Without importing modules or using len().

• 1. Safe printing of an integers list

  • 1-safe_print_integer.py: Python function that prints an integer in "{:d}".format() format.
  • The parameter value can be any type.
  • Returns True if value was printed correctly (ie. was an integer), False otherwise.
  • Without importing modules or using type().

• 2. Print and count integers

  • 2-safe_print_list_integers.py: Python function that prints the first x elements of a list that are integers on the same line, followed by a new line.
  • The parameter my_list can contain any type.
  • The parameter x represents the number of elements to print - can be bigger than the length of my_list.
  • Reutnrs the real number of integers printed.
  • Without importing modules or using len().

• 3. Integers division with debug

  • 3-safe_print_division.py: Python function that divides two integers and prints the result using finally:.
  • The function assumes that the arguments are integers.
  • Upon success, returns the value of the division; otherwise - returns None.
  • Without importing modules.

• 4. Divide a list

  • 4-list_division.py: Python function that divides two lists element by element.
  • Returns a new list of length list_length with all divisions.
  • The lists my_list_1 and my_list_2 can contain any type.
  • The parameter list_length can be larger than the lengths of either list.
  • If an element is not an integer or float, the function prints wrong type.
  • If the division cannot be done, the result of the division is 0 and the function prints: division by 0.
  • If either of my_list_1 or my_list_2 are too short, the function prints: out of range.
  • Without importing modules.

• 5. Raise exception

  • 5-raise_exception.py: Python function that raises a type exception.
  • Without importing modules.

• 6. Raise a message

  • 6-raise_exception_msg.py: Python function that raises a name exception with a message.
  • Without importing modules.

• 7. Safe integer print with error message

  • 100-safe_print_integer_err.py: Python function that prints an integer with type-checking in "{:d}".format()) format.
  • The paramter value can be any type.
  • Returns True if value was printed correctly (ie. was an integer).
  • Otherwise, prints an exception error to stderr and returns False.
  • Without importing modules.

• 8. Safe function

  • 101-safe_function.py: Python function that executes a function safely.
  • The function assumes that the paramter fct is always a pointer to a function.
  • Upon success, returns the result of the function.
  • Otherwise, prints an en exception error to stderr and returns None.

• 9. ByteCode -> Python #4

  • 102-magic_calculation.py: Python function matching exactly a bytecode provided by Holberton School.

• 10. CPython #2: PyFloatObject

  • 103-python.c: C functions that print basic information about Python lists, bytes, and float objects.