python-fp

Python modules for functional programming, influenced by the Scala standard lib and Scalaz

Introduction

Coming from Scala, having some functional programming constructs can be handy.

Available Functionality

The following is available:

• List[A]
  • map(f: A -> B) -> List[B]
  • bind(f: A -> List[B]) -> List[B]
  • for_each() -> None
  • filter(p: A -> bool) -> List[A]
  • is_empty() -> bool
  • mk_string(sep: str) -> str
  • intersperse(x: A) -> List[A]
  • fold_left(zero: A, f: A, A -> A) -> A
  • fold_right(zero: A, f: A, A -> A) -> A
  • fold(zero: B, B, A -> B): B
  • find(p: A -> bool): Option[A]
  • head_option(): Option[A]
  • partition(f: A -> bool): Tuple[List[A], List[A]]
  • sorted(): List[A]
  • reverse(): List[A]
  • sum(): A
  • length(): int
  • unwrap(): list
• Option[A]
  • map(f: A -> B) -> Option[B]
  • bind(f: A -> Option[B]) -> Option[B]
  • for_each() -> None
  • filter(p: A -> bool) -> List[A]
  • is_empty() -> bool
  • get_or_else(x: A) -> A
  • fold_left(zero: A, f: A, A -> A) -> A
  • fold_right(zero: A, f: A, A -> A) -> A
  • fold(zero: B, f: A -> B): B
  • get(): A
  • is_defined() -> bool
• Validation[Err, A]
  • sequence(xs: List[Validation]) -> Validation[List[Err], List[A]]
  • from_option(x: Option[A], err: Err): Validation[Err, A]
  • map(f: A, C) -> Validation[C]
  • bind(f: A -> Validation[C]) -> Validation[C]
  • is_failure() -> boolean
  • fold(f: Err -> C, g: Err -> C) -> C
  • get(): Union[Err, A]

How to build/run

Use the Makefile:

$ make
env                            creates a virtual python environment  for this project
info                           shows current python environment
clobber                        remove virtual python environment
fmt                            runs code formatter
type_check                     type checks the code
lint                           run python code analysis on rules
lint_test                      run python code analysis on test


# for example
$ make run
$ make test
$ make fmt
$ make info

Upload to PyPI test

To upload to test PyPI

# upload to test PyPI
twine upload --repository-url https://test.pypi.org/legacy/ dist/*

# install from test PyPI
pip install -i https://testpypi.python.org/pypi python-fp

Upload to PyPI

To upload to PyPI

# install to PyPI
twine upload --repository-url https://upload.pypi.org/legacy/ dist/*

# install from PyPI
pip install python-fp 

Resources

• Packaging Python Projects

Have fun!