Skip to content
🐫 Convert strings (and dictionary keys) between snake case, camel case and pascal case in Python. Inspired by Humps for Node
Python Makefile
Branch: master
Clone or download

README.md

Humps logo

pypi pypi

Convert strings (and dictionary keys) between snake case, camel case and pascal case in Python. Inspired by Humps for Node.

Installation

To install humps, simply use pipenv (or pip, of course):

$ pipenv install pyhumps

Usage

Converting strings

import humps

humps.camelize('jack_in_the_box')  # jackInTheBox
humps.decamelize('rubyTuesdays')  # ruby_tuesdays
humps.pascalize('red_robin')  # RedRobin

Converting dictionary keys

import humps

array = [{'attrOne': 'foo'}, {'attrOne': 'bar'}]
humps.decamelize(array) # [{'attr_one': 'foo'}, {'attr_one': 'bar'}]

array = [{'attr_one': 'foo'}, {'attr_one': 'bar'}]
humps.camelize(array)  # [{'attrOne': 'foo'}, {'attrOne': 'bar'}]

array = [{'attr_one': 'foo'}, {'attr_one': 'bar'}]
humps.pascalize(array)  # [{'AttrOne': 'foo'}, {'AttrOne': 'bar'}]

Checking character casing

import humps

humps.is_camelcase('illWearYourGranddadsClothes')  # True
humps.is_pascalcase('ILookIncredible')  # True
humps.is_snakecase('im_in_this_big_ass_coat')  # True
humps.is_camelcase('from_that_thrift_shop')  # False
humps.is_snakecase('downTheRoad')  # False

# what about abbrevations, acronyms, and initialisms? No problem!
humps.decamelize('APIResponse')  # api_response

Humps Cookbook

Pythonic Boto3 API Wrapper

# aws.py
import humps
import boto3

def api(service, decamelize=True, *args, **kwargs):
    service, func = service.split(':')
    client = boto3.client(service)
    kwargs = humps.pascalize(kwargs)
    response = getattr(client, func)(*args, **kwargs)
    return (depascalize(response) if decamelize else response)

# usage
api('s3:download_file', bucket='bucket', key='hello.png', filename='hello.png')
You can’t perform that action at this time.