Get your package started by converting scripts you have already written. You'll create a simple package which you can use on your own computer.

Starting a package

Modules, packages and subpackages

From script to package

Putting your package to work

Documentation

Writing function documentation with pyment

Writing function documentation with pyment II

Package and module documentation

Structuring imports

Sibling imports

Importing from parents

Exposing functions to users

From Loose Code to Local Package

Make your package installable for yourself and others. In this chapter, you'll learn to deal with dependencies,  write READMEs, and include licenses. You'll also complete all the steps to publish your package on PyPI—the main home of Python packages.

Je eigen pakket installeren

# Import required functions
____

# Call setup function
____(
    author="<your-name>",
    description="____",
    name="____",
    packages=____(____=____),
    version="____",
)


# Import required functions
from setuptools import setup, find_packages

# Call setup function
setup(
    author="<your-name>",
    description="A package for converting imperial lengths and weights.",
    name="impyrial",
    packages=find_packages(include=["impyrial", "impyrial.*"]),
    version="0.1.0",
)


Het setup-script toevoegen

import impyrial

result = impyrial.length.convert_unit(10, 'in', 'yd')
print(result)


# Run this to install the package locally
pip install -e .


Je pakket lokaal installeren

"""Conversions between ounces and larger imperial weight units"""
OUNCES_PER_POUND = 160  # 16 ounces in a pound
OUNCES_PER_STONE = OUNCES_PER_POUND * 14.0  # 14 pounds in a stone

UNITS = ("oz", "lb", "st")


def ounces_to_pounds(x, reverse=False):
    """Convert weights between ounces and pounds.

    Parameters
    ----------
    x : array_like
        Weights in pounds.
    reverse : bool, optional
        If this is set to true this function converts from pounds to ounces
        instead of the default behaviour of ounces to pounds.

    Returns
    -------
    ndarray
        An array of converted weights with the same shape as `x`. If `x` is a
        0-d array, then a scalar is returned.
    """
    if reverse:
        return x * OUNCES_PER_POUND
    else:
        return x / OUNCES_PER_POUND


def ounces_to_stone(x, reverse=False):
    """Convert weights between ounces and stone.

    Parameters
    ----------
    x : array_like
        Weights in stone.
    reverse : bool, optional
        If this is set to true this function converts from stone to ounces
        instead of the default behaviour of ounces to stone.

    Returns
    -------
    ndarray
        An array of converted weights with the same shape as `x`. If `x` is a
        0-d array, then a scalar is returned.
    """
    if reverse:
        return x * OUNCES_PER_STONE
    else:
        return x / OUNCES_PER_STONE


import impyrial

result = impyrial.weight.convert_unit(2, 'lb', 'oz')
print(result)


"""Conversions between ounces and larger imperial weight units"""
OUNCES_PER_POUND = 16.0  # 16 ounces in a pound
OUNCES_PER_STONE = OUNCES_PER_POUND * 14.0  # 14 pounds in a stone

UNITS = ("oz", "lb", "st")


def ounces_to_pounds(x, reverse=False):
    """Convert weights between ounces and pounds.

    Parameters
    ----------
    x : array_like
        Weights in pounds.
    reverse : bool, optional
        If this is set to true this function converts from pounds to ounces
        instead of the default behaviour of ounces to pounds.

    Returns
    -------
    ndarray
        An array of converted weights with the same shape as `x`. If `x` is a
        0-d array, then a scalar is returned.
    """
    if reverse:
        return x * OUNCES_PER_POUND
    else:
        return x / OUNCES_PER_POUND


def ounces_to_stone(x, reverse=False):
    """Convert weights between ounces and stone.

    Parameters
    ----------
    x : array_like
        Weights in stone.
    reverse : bool, optional
        If this is set to true this function converts from stone to ounces
        instead of the default behaviour of ounces to stone.

    Returns
    -------
    ndarray
        An array of converted weights with the same shape as `x`. If `x` is a
        0-d array, then a scalar is returned.
    """
    if reverse:
        return x * OUNCES_PER_STONE
    else:
        return x / OUNCES_PER_STONE


Gebruikmaken van bewerkbare installs

Omgaan met dependencies

from setuptools import setup, find_packages

# Add install requirements
setup(
    author="<your-name>",
    description="A package for converting imperial lengths and weights.",
    name="impyrial",
    packages=find_packages(include=["impyrial", "impyrial.*"]),
    version="0.1.0",
    ____=____,
)


from setuptools import setup, find_packages

# Add install requirements
setup(
    author="<your-name>",
    description="A package for converting imperial lengths and weights.",
    name="impyrial",
    packages=find_packages(include=["impyrial", "impyrial.*"]),
    version="0.1.0",
    install_requires=['numpy>=1.10', 'pandas'],
)


Afhankelijkheden voor gebruikers

# Run this script to install the package locally
pip freeze > requirements.txt


Ontwikkelingsafhankelijkheden

Licenties opnemen en README's schrijven

____

A package for converting between imperial unit lengths and weights.

This package was created for the ____DataCamp____ course "Developing Python Packages".

### Features

- Convert lengths between miles, yards, feet and inches.
- Convert weights between hundredweight, stone, pounds and ounces.

### Usage

____
import impyrial

# Convert 500 miles to feet
impyrial.length.convert_unit(500, from_unit='yd', to_unit='ft')  # returns 1500.0

# Convert 100 ounces to pounds
impyrial.weight.convert_unit(100, from_unit='oz', to_unit='lb')  # returns 6.25
____


# impyrial

A package for converting between imperial unit lengths and weights.

This package was created for the [DataCamp](https://www.datacamp.com) course "Developing Python Packages".

### Features

- Convert lengths between miles, yards, feet and inches.
- Convert weights between hundredweight, stone, pounds and ounces.

### Usage

```
import impyrial

# Convert 500 miles to feet
impyrial.length.convert_unit(500, from_unit='yd', to_unit='ft')  # returns 1500.0

# Convert 100 ounces to pounds
impyrial.weight.convert_unit(100, from_unit='oz', to_unit='lb')  # returns 6.25
```


Een README schrijven

# impyrial

A package for converting between imperial unit lengths and weights.

This package was created for the [DataCamp](https://www.datacamp.com) course Developing Python Packages.

### Features

- Convert lengths between miles, yards, feet and inches.
- Convert weights between hundredweight, stone, pounds and ounces.

### Usage

```
import impyrial

# convert 500 miles to feet
impyrial.length.convert_unit(500, from_unit='yd', to_unit='ft')  # returns 1500.0

# convert 100 ounces to pounds
impyrial.weight.convert_unit(100, from_unit='oz', to_unit='lb')  # returns 6.25
```


MANIFEST - Extra bestanden opnemen in je package

Je pakket publiceren

# Run this code to complete the exercise
python3 setup.py sdist bdist_wheel


Een distributie bouwen

# Run the following in the terminal:
# twine upload dist/*


Distributies uploaden

Install Your Package from Anywhere

Bring your package up to a professional standard. Discover how to use pytest to guard against errors, tox to test if your package functions with multiple versions of Python, and flake8 to maintain great code style.

Testing your package

Creating the test directory

Writing some basic tests

Running your tests

Testing your package with different environments

Setting up tox

Running tox

Keeping your package stylish

Appropriate style filtering

Using flake8 to tidy up a file

Ignoring specific errors

Configuring flake8

Increasing Your Package Quality

Create your packages more quickly. In this final chapter, you’ll learn how to use cookiecutter to generate all the supporting files your package needs, Makefiles to simplify releasing new versions, and be introduced to the last few files your package needs to attract users and contributors.

Faster package development with templates

Using package templates

Version numbers and history

CONTRIBUTING.md

History file

Tracking version number with bumpversion

Makefiles and classifiers

PyPI classifiers

Using makefiles

Wrap-up

Rapid Package Development

Kopieer en plak je vaak dezelfde code tussen bestanden en wou je dat hergebruiken en delen makkelijker was? Je code verpakken in Python-pakketten helpt! In deze cursus leer je over de pakketstructuur en de extra bestanden die nodig zijn om losse code om te zetten in handige pakketten. Je leert ook over importstructuur, documentatie en hoe je met flake8 een consistente codestijl bewaakt. Daarna versnel je je pakketontwikkeling met sjablonen en gebruik je cookiecutter om pakketskeletten te maken. Tot slot leer je hoe je met setuptools en twine je pakketten bouwt en publiceert op PyPI—het wereldpodium voor Python-pakketten.

Introduction to Shell

Writing Functions in Python

Leer over pakketstructuur, importstructuur, documentatie en code stijl. Bouw sjablonen en publiceer.

Python-pakketten ontwikkelen

Leer je eigen Python-pakketten maken om je code makkelijker te gebruiken en te delen met anderen.

Het setup-script toevoegen

Python-pakketten ontwikkelen

Praktische interactieve oefening