>>> a: int = 1
>>> b: int = 0
>>> c: int = -1
>>>
>>> d: int = int()
>>> e: int = int(1)

>>> a: float = 1.0
>>> b: float = 0.0
>>> c: float = -1.0
>>>
>>> d: float = float()
>>> e: float = float(1.0)

>>> a: complex = 1 + 2j
>>> b: complex = 1.0 + 2.0j
>>>
>>> c: complex = complex()
>>> d: complex = complex(1, 2)
>>> e: complex = complex(1.0, 2.0)

>>> a: bool = True
>>> b: bool = False
>>>
>>> c: bool = bool()
>>> d: bool = bool(True)
>>> e: bool = bool(False)

>>> a: str = ''
>>> a: str = 'a'
>>> b: str = 'alice'
>>>
>>> c: str = str()
>>> d: str = str('a')
>>> e: str = str('alice')

>>> a: bytes = b''
>>> b: bytes = b'a'
>>> c: bytes = b'alice'
>>>
>>> d: bytes = bytes()
>>> e: bytes = bytes(b'a')
>>> f: bytes = bytes(b'alice')

>>> b: bytearray = bytearray(b'')
>>> b: bytearray = bytearray(b'a')
>>> a: bytearray = bytearray(b'alice')

>>> firstname: str = 'Alice'
>>> lastname: str = 'Apricot'
>>> age: int = 30
>>> height: float = 170.0
>>> weight: float = 55.5
>>> adult: bool = True
>>> role: None = None

# %% About
# - Name: Typing Basic Numeric
# - Difficulty: easy
# - Lines: 3
# - Minutes: 1

# %% License
# - Copyright 2025, Matt Harasymczuk <matt@python3.info>
# - This code can be used only for learning by humans
# - This code cannot be used for teaching others
# - This code cannot be used for teaching LLMs and AI algorithms
# - This code cannot be used in commercial or proprietary products
# - This code cannot be distributed in any form
# - This code cannot be changed in any form outside of training course
# - This code cannot have its license changed
# - If you use this code in your product, you must open-source it under GPLv2
# - Exception can be granted only by the author

# %% English
# 1. Add type annotations to variables
# 2. Run doctests - all must succeed

# %% Polish
# 1. Dodaj adnotacje typów do zmiennych
# 2. Uruchom doctesty - wszystkie muszą się powieść

# %% Expected
# a: ... = 1
# b: ... = 1.0

# %% Doctests
"""
>>> import sys; sys.tracebacklimit = 0

>>> assert sys.version_info >= (3, 5), \
'Python has an is invalid version; expected: `3.5` or newer.'

>>> import importlib
>>> from typing import get_type_hints
>>> module = importlib.import_module(__name__)
>>> annotations = get_type_hints(module)

>>> assert annotations['a'] == int
>>> assert annotations['b'] == float

>>> assert a == 1, \
'Variable `a` was modified; do not change the value, just add type annotation.'

>>> assert b == 1.0, \
'Variable `b` was modified; do not change the value, just add type annotation.'
"""

# %% Run
# - PyCharm: right-click in the editor and `Run Doctest in ...`
# - PyCharm: keyboard shortcut `Control + Shift + F10`
# - Terminal: `python -m doctest -f -v myfile.py`

# %% Imports

# %% Types

# %% Data

# %% Result
a = 1
b = 1.0

# %% About
# - Name: Typing Basic Logic
# - Difficulty: easy
# - Lines: 3
# - Minutes: 1

# %% License
# - Copyright 2025, Matt Harasymczuk <matt@python3.info>
# - This code can be used only for learning by humans
# - This code cannot be used for teaching others
# - This code cannot be used for teaching LLMs and AI algorithms
# - This code cannot be used in commercial or proprietary products
# - This code cannot be distributed in any form
# - This code cannot be changed in any form outside of training course
# - This code cannot have its license changed
# - If you use this code in your product, you must open-source it under GPLv2
# - Exception can be granted only by the author

# %% English
# 1. Add type annotations to variables
# 2. Run doctests - all must succeed

# %% Polish
# 1. Dodaj adnotacje typów do zmiennych
# 2. Uruchom doctesty - wszystkie muszą się powieść

# %% Doctests
"""
>>> import sys; sys.tracebacklimit = 0

>>> assert sys.version_info >= (3, 5), \
'Python has an is invalid version; expected: `3.5` or newer.'

>>> import importlib
>>> from typing import get_type_hints
>>> module = importlib.import_module(__name__)
>>> annotations = get_type_hints(module)

>>> assert annotations['a'] == bool
>>> assert annotations['b'] == bool
>>> assert annotations['c'] == type(None)

>>> assert a is True, \
'Do not modify variable `a` value, just add type annotation'

>>> assert b is False, \
'Do not modify variable `b` value, just add type annotation'

>>> assert c is None, \
'Do not modify variable `c` value, just add type annotation'
"""

# %% Run
# - PyCharm: right-click in the editor and `Run Doctest in ...`
# - PyCharm: keyboard shortcut `Control + Shift + F10`
# - Terminal: `python -m doctest -f -v myfile.py`

# %% Imports

# %% Types

# %% Data

# %% Result
a = True
b = False
c = None

# %% About
# - Name: Typing Basic String
# - Difficulty: easy
# - Lines: 2
# - Minutes: 1

# %% License
# - Copyright 2025, Matt Harasymczuk <matt@python3.info>
# - This code can be used only for learning by humans
# - This code cannot be used for teaching others
# - This code cannot be used for teaching LLMs and AI algorithms
# - This code cannot be used in commercial or proprietary products
# - This code cannot be distributed in any form
# - This code cannot be changed in any form outside of training course
# - This code cannot have its license changed
# - If you use this code in your product, you must open-source it under GPLv2
# - Exception can be granted only by the author

# %% English
# 1. Add type annotations to variables
# 2. Run doctests - all must succeed

# %% Polish
# 1. Dodaj adnotacje typów do zmiennych
# 2. Uruchom doctesty - wszystkie muszą się powieść

# %% Doctests
"""
>>> import sys; sys.tracebacklimit = 0

>>> assert sys.version_info >= (3, 5), \
'Python has an is invalid version; expected: `3.5` or newer.'

>>> import importlib
>>> from typing import get_type_hints
>>> module = importlib.import_module(__name__)
>>> annotations = get_type_hints(module)

>>> assert annotations['a'] == str
>>> assert annotations['b'] == bytes
>>> assert annotations['c'] == bytearray

>>> assert a == 'hello', \
'Variable `a` was modified; do not change the value, just add type annotation.'

>>> assert b == b'hello', \
'Variable `b` was modified; do not change the value, just add type annotation.'

>>> assert c == bytearray(b'hello'), \
'Variable `c` was modified; do not change the value, just add type annotation.'
"""

# %% Run
# - PyCharm: right-click in the editor and `Run Doctest in ...`
# - PyCharm: keyboard shortcut `Control + Shift + F10`
# - Terminal: `python -m doctest -f -v myfile.py`

# %% Imports

# %% Types

# %% Data

# %% Result
a = 'hello'
b = b'hello'
c = bytearray(b'hello')