16.2. Pathlib Current

16.2.1. Current Working Directory

  • Get current working directory with Path.cwd()

>>> from pathlib import Path
>>>
>>> result = Path.cwd()
>>> print(result)
/home/myuser/myproject

16.2.2. Running File

  • Get path of the running script

>>> from pathlib import Path
>>>
>>> result = Path(__file__)
>>> print(result)
/home/myuser/myproject/myfile.py

16.2.3. Running Directory

  • Get directory of the running script

  • Base directory

>>> from pathlib import Path
>>>
>>> result = Path(__file__).parent
>>> print(result)
/home/myuser/myproject

16.2.4. Assignments

# %% About
# - Name: Pathlib Current CWD
# - Difficulty: easy
# - Lines: 1
# - 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. Create Path object for current working directory
# 2. Define variable `result: Path` with the solution
# 3. Use `pathlib` built-in module
# 4. Run doctests - all must succeed

# %% Polish
# 1. Utwórz obiekt Path dla bieżącego katalogu roboczego
# 2. Zdefiniuj zmienną `result: Path` z rozwiązaniem
# 3. Use `pathlib` built-in module
# 4. Uruchom doctesty - wszystkie muszą się powieść

# %% Expected

# %% Hints
# - `pathlib.Path()`
# - `Path.cwd()`

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

>>> assert sys.version_info >= (3, 10), \
'Python has an is invalid version; expected: `3.10` or newer.'

>>> cwd = Path.cwd()

>>> assert 'result' in globals(), \
'Variable `result` is not defined; assign result of your program to it.'

>>> assert result is not Ellipsis, \
'Variable `result` has an invalid value; assign result of your program to it.'

>>> assert isinstance(result, Path), \
'Variable `result` has invalid type; expected: `Path`.'

>>> assert result == cwd, \
'Variable `result` has invalid value; expected current working directory path.'
"""

# %% 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
from pathlib import Path

# %% Types
result: Path

# %% Data

# %% Result
result = ...

# %% About
# - Name: Pathlib Current File
# - Difficulty: easy
# - Lines: 1
# - 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. Create Path object for file with the running script
# 2. Define variable `result: Path` with the solution
# 3. Use `pathlib` built-in module
# 4. Run doctests - all must succeed

# %% Polish
# 1. Utwórz obiekt Path dla pliku z uruchamianym skryptem
# 2. Zdefiniuj zmienną `result: Path` z rozwiązaniem
# 3. Use `pathlib` built-in module
# 4. Uruchom doctesty - wszystkie muszą się powieść

# %% Expected

# %% Hints
# - `pathlib.Path()`

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

>>> assert sys.version_info >= (3, 10), \
'Python has an is invalid version; expected: `3.10` or newer.'

>>> assert 'result' in globals(), \
'Variable `result` is not defined; assign result of your program to it.'

>>> assert result is not Ellipsis, \
'Variable `result` has an invalid value; assign result of your program to it.'

>>> assert isinstance(result, Path), \
'Variable `result` has invalid type; expected: `Path`.'
"""

# %% 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
from pathlib import Path

# %% Types
result: Path

# %% Data

# %% Result
result = ...

# %% About
# - Name: Pathlib Current Directory
# - Difficulty: easy
# - Lines: 1
# - 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. Create Path object for directory with the running script
# 2. Define variable `result: Path` with the solution
# 3. Use `pathlib` built-in module
# 4. Run doctests - all must succeed

# %% Polish
# 1. Utwórz obiekt Path dla katalogu z uruchamianym skryptem
# 2. Zdefiniuj zmienną `result: Path` z rozwiązaniem
# 3. Use `pathlib` built-in module
# 4. Uruchom doctesty - wszystkie muszą się powieść

# %% Expected

# %% Hints
# - `pathlib.Path()`

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

>>> assert sys.version_info >= (3, 10), \
'Python has an is invalid version; expected: `3.10` or newer.'

>>> assert 'result' in globals(), \
'Variable `result` is not defined; assign result of your program to it.'

>>> assert result is not Ellipsis, \
'Variable `result` has an invalid value; assign result of your program to it.'

>>> assert isinstance(result, Path), \
'Variable `result` has invalid type; expected: `Path`.'
"""

# %% 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
from pathlib import Path

# %% Types
result: Path

# %% Data

# %% Result
result = ...