pipfile-to-poetry.py

# -*- coding: utf-8 -*-

import json
import toml


def read_pipenv_lock():
    with open('Pipfile.lock') as lock:
        return json.loads(lock.read())


def read_pipenv():
    with open('Pipfile') as pipfile:
        return toml.loads(pipfile.read())


def convert_version(version):
    return version.replace('==', '^')


def to_name_version_notation(pipfile, lock, section):
    category = 'packages' if section == 'default' else 'dev-packages'
    notations = {}
    dependencies = lock[section]
    for dep in dependencies:
        if dep not in pipfile[category]:
            continue

        notations.update({
            dep: convert_version(dependencies[dep]['version']),
        })
    return notations


pipfile = read_pipenv()
lock = read_pipenv_lock()

for section in ['default', 'develop']:
    print('Section:', section)
    current = to_name_version_notation(pipfile, lock, section)
    for dep, version in current.items():
        print(dep, '=', '"' + version + '"')
    print()

@tony I recommend to try dephell instead: https://github.com/dephell/dephell

It will do the same thing.

@sobolevn : Thank you!

So it'll be able to convert Pipfile to poetry's pyproject.toml ?

Would it require everyone on the team installing dephell, or just poetry?

You can convert your Pipfile once. And then use just poetry.

dephell deps convert --from=Pipfile --to-format poetry --to-path pyproject.toml

And then you have a valid poetry file 👍