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markdown consistency (#4461)
* markdown consistency * Swap ** for __ Co-authored-by: Christian Clauss <cclauss@me.com>
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Vivian Dai
GitHub
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@ -2,7 +2,7 @@
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## Before contributing
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Welcome to [TheAlgorithms/Python](https://github.com/TheAlgorithms/Python)! Before sending your pull requests, make sure that you **read the whole guidelines**. If you have any doubt on the contributing guide, please feel free to [state it clearly in an issue](https://github.com/TheAlgorithms/Python/issues/new) or ask the community in [Gitter](https://gitter.im/TheAlgorithms).
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Welcome to [TheAlgorithms/Python](https://github.com/TheAlgorithms/Python)! Before sending your pull requests, make sure that you __read the whole guidelines__. If you have any doubt on the contributing guide, please feel free to [state it clearly in an issue](https://github.com/TheAlgorithms/Python/issues/new) or ask the community in [Gitter](https://gitter.im/TheAlgorithms).
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## Contributing
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@ -15,9 +15,9 @@ We are very happy that you consider implementing algorithms and data structure f
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- Your work will be distributed under [MIT License](LICENSE.md) once your pull request is merged
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- You submitted work fulfils or mostly fulfils our styles and standards
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**New implementation** is welcome! For example, new solutions for a problem, different representations for a graph data structure or algorithm designs with different complexity but **identical implementation** of an existing implementation is not allowed. Please check whether the solution is already implemented or not before submitting your pull request.
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__New implementation__ is welcome! For example, new solutions for a problem, different representations for a graph data structure or algorithm designs with different complexity but __identical implementation__ of an existing implementation is not allowed. Please check whether the solution is already implemented or not before submitting your pull request.
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**Improving comments** and **writing proper tests** are also highly welcome.
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__Improving comments__ and __writing proper tests__ are also highly welcome.
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### Contribution
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@ -33,7 +33,7 @@ An Algorithm is one or more functions (or classes) that:
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* take one or more inputs,
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* perform some internal calculations or data manipulations,
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* return one or more outputs,
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* have minimal side effects (Ex. print(), plot(), read(), write()).
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* have minimal side effects (Ex. `print()`, `plot()`, `read()`, `write()`).
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Algorithms should be packaged in a way that would make it easy for readers to put them into larger programs.
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@ -42,7 +42,7 @@ Algorithms should:
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* use Python naming conventions and intuitive variable names to ease comprehension
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* be flexible to take different input values
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* have Python type hints for their input parameters and return values
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* raise Python exceptions (ValueError, etc.) on erroneous input values
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* raise Python exceptions (`ValueError`, etc.) on erroneous input values
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* have docstrings with clear explanations and/or URLs to source materials
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* contain doctests that test both valid and erroneous input values
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* return all calculation results instead of printing or plotting them
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@ -66,10 +66,10 @@ pre-commit run --all-files --show-diff-on-failure
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We want your work to be readable by others; therefore, we encourage you to note the following:
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- Please write in Python 3.7+. For instance: __print()__ is a function in Python 3 so __print "Hello"__ will _not_ work but __print("Hello")__ will.
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- Please write in Python 3.7+. For instance: `print()` is a function in Python 3 so `print "Hello"` will *not* work but `print("Hello")` will.
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- Please focus hard on naming of functions, classes, and variables. Help your reader by using __descriptive names__ that can help you to remove redundant comments.
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- Single letter variable names are _old school_ so please avoid them unless their life only spans a few lines.
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- Expand acronyms because __gcd()__ is hard to understand but __greatest_common_divisor()__ is not.
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- Single letter variable names are *old school* so please avoid them unless their life only spans a few lines.
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- Expand acronyms because `gcd()` is hard to understand but `greatest_common_divisor()` is not.
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- Please follow the [Python Naming Conventions](https://pep8.org/#prescriptive-naming-conventions) so variable_names and function_names should be lower_case, CONSTANTS in UPPERCASE, ClassNames should be CamelCase, etc.
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- We encourage the use of Python [f-strings](https://realpython.com/python-f-strings/#f-strings-a-new-and-improved-way-to-format-strings-in-python) where they make the code easier to read.
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@ -81,7 +81,7 @@ We want your work to be readable by others; therefore, we encourage you to note
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black .
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```
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- All submissions will need to pass the test __flake8 . --ignore=E203,W503 --max-line-length=88__ before they will be accepted so if possible, try this test locally on your Python file(s) before submitting your pull request.
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- All submissions will need to pass the test `flake8 . --ignore=E203,W503 --max-line-length=88` before they will be accepted so if possible, try this test locally on your Python file(s) before submitting your pull request.
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```bash
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python3 -m pip install flake8 # only required the first time
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@ -134,7 +134,7 @@ We want your work to be readable by others; therefore, we encourage you to note
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python3 -m doctest -v my_submission.py
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```
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The use of the Python builtin __input()__ function is **not** encouraged:
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The use of the Python builtin `input()` function is __not__ encouraged:
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```python
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input('Enter your input:')
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@ -142,7 +142,7 @@ We want your work to be readable by others; therefore, we encourage you to note
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input = eval(input("Enter your input: "))
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```
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However, if your code uses __input()__ then we encourage you to gracefully deal with leading and trailing whitespace in user input by adding __.strip()__ as in:
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However, if your code uses `input()` then we encourage you to gracefully deal with leading and trailing whitespace in user input by adding `.strip()` as in:
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```python
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starting_value = int(input("Please enter a starting value: ").strip())
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@ -175,8 +175,8 @@ We want your work to be readable by others; therefore, we encourage you to note
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- All submissions will be tested with [__mypy__](http://www.mypy-lang.org) so we encourage to add [__Python type hints__](https://docs.python.org/3/library/typing.html) where it makes sense to do so.
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- Most importantly,
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- **Be consistent in the use of these guidelines when submitting.**
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- **Join** [Gitter](https://gitter.im/TheAlgorithms) **now!**
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- __Be consistent in the use of these guidelines when submitting.__
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- __Join__ [Gitter](https://gitter.im/TheAlgorithms) __now!__
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- Happy coding!
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Writer [@poyea](https://github.com/poyea), Jun 2019.
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