Skip to main content
Join the official 2019 Python Developers SurveyStart the survey!

iterable as a chain

Project description

ChIter - iterable as a chain

Requirements

  • Python 3.7+

Installation

pip install chiter

Documentation

Coming soon

Why?

  • Chains do not require saving the intermediate state in temporary variables
  • Look more readable

Examples

It is necessary to get the sum of all numbers from the following sequence:"23,45,67\n45,56,55\n\n45,a,5\n-45,56,0"

first way

from itertools import chain


data = "23,45,67\n45,56,55\n\n45,a,5\n-45,56,0"

chunks = (chunk.split(',') for chunk in data.split())
flat_data = chain.from_iterable(chunks)
items = (int(item) for item in flat_data if not item.isalpha())
result = sum(items)

assert result == 352

second way

from itertools import chain


data = "23,45,67\n45,56,55\n\n45,a,5\n-45,56,0"

result = sum((
    int(item)
    for item in chain.from_iterable(map(lambda c: c.split(','), data.split()))
    if not item.isalpha()
))
assert result == 352

chiter way

from chiter import ChIter as I


data = "23,45,67\n45,56,55\n\n45,a,5\n-45,56,0"

result = (I(data.split())
          .map(lambda x: x.split(','))
          .flat()
          .filterfalse(str.isalpha)
          .map(int)
          .sum())

assert result == 352

Related Libraries

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for chiter, version 1.0.0a2
Filename, size File type Python version Upload date Hashes
Filename, size chiter-1.0.0a2-py3-none-any.whl (5.1 kB) File type Wheel Python version py3 Upload date Hashes View hashes
Filename, size chiter-1.0.0a2.tar.gz (4.4 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page