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https://github.com/zotroneneis/magical_universe

Awesome Python features explained using the world of magic
https://github.com/zotroneneis/magical_universe

100daysofcode coding coding-challenge python python-3

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Awesome Python features explained using the world of magic

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# Awesome Python Features Explained Using the World of Magic






As outlined in [my blog post](https://alpopkes.com/posts/python/magical_universe/day_1_start/), I decided to take on a new habit using a technique I found on the ['get disciplined' subreddit](https://www.reddit.com/r/getdisciplined/comments/1x99m6/im_a_piece_of_shit_no_more_games_no_more_lies_no/cf9dz72/).



As one of my new habits I chose: "Code for 15 minutes every day". As part of the habit I've started creating a series of **blog posts** on important and awesome **Python features**, including object oriented programming, properties, function annotations, duck typing, etc.



Since I was bored by the usual tutorial examples, I looked for a topic that would make it fun to study and implement the concepts. And since I absolutely love Harry Potter, I started creating my own magical universe around the topics. A short introduction into my magical universe - **The Tales of Castle Kilmere** can be found [here](https://alpopkes.com/posts/python/magical_universe/day_1_magical_universe/). So if you like magic and want to improve your Python knowledge and skills, get right into it!



A logbook of what I worked on each day can be found on my [website](https://alpopkes.com/posts/python/magical_universe/).



The code runs in **Python 3.6**, the [code on data classes](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_16_to_18.py) requires Python 3.7 (or you pip install data classes for Python 3.6).



Start date: 07/23/2018   



## Keynote at PyCon Estonia and EuroPython



I gave a keynote talk about this project titled "Finding Magic in Python" at PyCon Estonia 2020. So if you are up for some magic and want to see an introduction to some of the topics (like Namedtuples or Abstract Base Classes) check out the [recording on YouTube](https://www.youtube.com/watch?v=Kf92pycivt4).



I held another talk at EuroPython, check out [the recording here](https://www.youtube.com/watch?v=J4e4YCZ-jiQ).



## Running pytest



In case you get ```ImportError: no module named magical_universe``` when running pytest from within the test_code directory, take a look at [this post](https://stackoverflow.com/questions/10253826/path-issue-with-pytest-importerror-no-module-named-yadayadayada) and try running pytest from the root directory (which is the home directory in my case) using ```python -m pytest magical_universe/test_code/```.



## Overview



| Day   | Topics          | Blog post with explanations | Code for the day  |

| :---: |:--------------: | :--------------------------:| :----------------:|

| 1 | Intro to object oriented programming, classes, inheritance   | [Day 1](https://alpopkes.com/posts/python/magical_universe/day_1_first_post_oop/)  | [Code day 1](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_1.py) |

| 2 | Class methods, instance methods, static methods, using class methods as alternative constructors | [Day 2](https://alpopkes.com/posts/python/magical_universe/day_2_types_of_methods/)  | [Code day 2](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_2.py) |

| 3 |Type annotations|[Day 3](https://alpopkes.com/posts/python/magical_universe/day_3_type_annotations/) |  [Code day 3](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_3.py) |

| 4 |To-string conversion, `__repr__, __str__`|[Day 4](https://alpopkes.com/posts/python/magical_universe/day_4_to_string_conversion/) |  [Code day 4](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_4.py) |

| 5 |Decorators|[Day 5](https://alpopkes.com/posts/python/magical_universe/day_5_decorators/)    | No new code added |

| 6 |Properties, `@property` and `property()`, setters, getters|[Day 6](https://alpopkes.com/posts/python/magical_universe/day_6_properties/)    | [Code day 6](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_6.py) |

| 7 |Underscore patterns for variable naming, `_variable, __variable, __variable__, etc.`|[Day 7](https://alpopkes.com/posts/python/magical_universe/day_7_underscore_patterns/)    | No new code added |

| 8 | New methods and classes added to the HP universe |[Day 8](https://alpopkes.com/posts/python/magical_universe/day_8_extending_universe/) |  [Code day 8](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_8.py) |

| 9 | Duck typing, EAFP principle |[Day 9](https://alpopkes.com/posts/python/magical_universe/day_9_duck_typing/) |  [Code day 9](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_9.py) |

| 10 & 11| Namedtuples | [Day 10 & 11](https://alpopkes.com/posts/python/magical_universe/day_10_11_namedtuples/) | [Code day 10 & 11](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_10_and_11.py)|

| 12 - 15  | Abstract Base Classes | [Day 12 to 15](https://alpopkes.com/posts/python/magical_universe/day_12_to_15_abcs/) | [Code day 12 to 15](https://github.com/zotroneneis/100_days_of_code/blob/master/code_per_day/day_12_to_15.py)|

| 16 - 18  | Data Classes | [Day 16 to 18](https://alpopkes.com/posts/python/magical_universe/day_16_to_18_data_classes/) | [Code day 16 to 18](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_16_to_18.py)|

| 19  | Immutable Data Classes | [Day 19](https://alpopkes.com/posts/python/magical_universe/day_19_immutable_data_classes/) | [Code day 19](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_19.py)|

| 20  | Decorators within a class | [Day 20](https://alpopkes.com/posts/python/magical_universe/day_20_decorators_in_classes/) | [Code day 20](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_20.py)|

| 21  | The mysterious `if __name__ == "__main__"` | [Day 21](https://alpopkes.com/posts/python/magical_universe/day_21_if_main/) | No new code added |

| 22 - 24  | Context managers and the `with` statement| [Day 22 to 24](https://alpopkes.com/posts/python/magical_universe/day_22_to_24_context_managers/) | [Code day 22 to 24](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_22_to_24.py) |

| 25 - 28  | Testing code with pytest| [Day 25 to 28](https://alpopkes.com/posts/python/magical_universe/day_25_to_28_pytest/) | [Code day 25 to 28](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_hogwarts_member_class.py) |

| 29 - 31  | Iterators, iterables, iteration| [Day 29 to 31](https://alpopkes.com/posts/python/magical_universe/day_29_to_31_iterators/) | [Code day 29 to 31](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_29_to_31.py) |

| 32  | Test code for `Professor` class | No blog post, see [Day 25 to 28](http://alpopkes.com/posts/2018/08/coding-challenge-day-51/) for an introduction to testing| [Code day 32](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_professor_class.py) |

| 33  | Test code for `Ghost` class | No blog post, see [Day 25 to 28](http://alpopkes.com/posts/2018/08/coding-challenge-day-51/) for an introduction to testing| [Code day 33](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_ghost_class.py) |

| 34  | Counting objects with `Collections.counter` | [Day 34](https://alpopkes.com/posts/python/magical_universe/day_34_multisets/) | [Day 34](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_34.py) |

| 35  | Test code for `DarkArmyMember` class | No blog post, see [Day 25 to 28](http://alpopkes.com/posts/2018/08/coding-challenge-day-51/) for an introduction to testing| [Code day 35](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_dark_army_member_class.py) |

| 36  | Test code for `Potion` class | No blog post, see [Day 25 to 28](http://alpopkes.com/posts/2018/08/coding-challenge-day-51/) for an introduction to testing| [Code day 36](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_potion_class.py) |

| 37  | Extension of Magical Universe with classmethods for `Charm, Hex, Curse`, etc. | [Day 37](https://alpopkes.com/posts/python/magical_universe/day_37_extending_universe/) | [Code day 37](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_37.py) |

| 38 - 39  | Test code for `Spell` class | No blog post, see [Day 25 to 28](http://alpopkes.com/posts/2018/08/coding-challenge-day-51/) for an introduction to testing| [Code day 38 to 39](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_abstract_base_class_spell.py) |

| 40 - 42 | Test code for `Pupil` class | No blog post, see [Day 25 to 28](http://alpopkes.com/posts/2018/08/coding-challenge-day-51/) for an introduction to testing| [Code day 40 to 42](https://github.com/zotroneneis/magical_universe/blob/master/test_code/test_pupil_class.py) |

| 43 - 45  | Custom exception classes| [Day 43 to 45](https://alpopkes.com/posts/python/magical_universe/day_43_to_45_exception_classes/) | [Code day 43 to 45](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_43_to_45.py) |

| 46  | `functools.wraps` - Avoiding losing metdata when applying decorators| [Day 46](https://alpopkes.com/posts/python/magical_universe/day_46_functools_wraps/) | [Code day 46](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_46.py) |

| 47 - 48  | `collections.defaultdict`| [Day 47 to 48](https://alpopkes.com/posts/python/magical_universe/day_47_to_48_defaultdict/) | [Code day 47 to 48](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_47_to_48.py) |

| 49 - 50  | Working with config files| [Day 49 to 50](https://alpopkes.com/posts/python/magical_universe/day_49_to_50_config_files/) | [Code day 49 to 50](https://github.com/zotroneneis/magical_universe/blob/master/code_per_day/day_49_to_50.py) |

| 51  | Wrap up| [Day 51](https://alpopkes.com/posts/python/magical_universe/2018-09-16-blog-post-day-51/) | No new code added |



## Feedback



In case you find a mistake in the code or the blog posts, please let me know by opening an issue!