Project bump changing dependency specification format causing upstream packages to break

[amitjindal]

Short description

project bump is changing format of dependencies that causes upstream poetry projects to break.

Command in question:

dephell project bump --from-format=poetry --from-path=pyproject.toml minor

I am not sure if I am doing something wrong. I tried to find any flag that should help in this behaviour but could not.
I even tried to remove python from dependencies. In that case it adds a '*' dependency for python.

Output

Originally I have:

[tool.poetry.dependencies]
python = "^3.8"
Werkzeug = "^1.0.1"
black = "^20.8b1"
coverage = "^5.2.1"

After running: dephell project bump --from-format=poetry --from-path=pyproject.toml minor

I have:

[tool.poetry.dependencies]
python = "==3.*,>=3.8.0"
Werkzeug = "==1.*,>=1.0.1"
black = "==20.*,>=20.8.0.b1"
coverage = "==5.*,>=5.2.1"

The real problem is python = "^3.8" getting converted to python = "==3.*,>=3.8.0"

Since this is a library, the upstream poetry fails as 3.* does not meets minimum requirement of 3.8. It works when I run the original.

Steps to reproduce

In any project that is based on pyproject.toml with poetry, use the python line:

[tool.poetry.dependencies]
python = "^3.8"

Then run:

$ dephell project bump init
$ dephell project bump --from-format=poetry --from-path=pyproject.toml minor`

Config

[tool.dephell.main]
# read from poetry format
from = {format = "poetry", path = "pyproject.toml"}
# and convert into setup.py
to = {format = "setuppy", path = "setup.py"}
# drop dev-dependencies
envs = ["main", "dev"]
versioning = "semver"

[tool.dephell.pytest]
# read dependencies from setup.py
from = {format = "setuppy", path = "setup.cfg"}
# install main dependencies and `tests` extra dependencies
envs = ["main", "tests"]
# run command `pytest`
command = "pytest"

Versions

dephell inspect self
{
  "cache": "5.38Mb",
  "path": "/Users/amitjindal/.pyenv/versions/3.8.5/lib/python3.8/site-packages/dephell",
  "python": "/Users/amitjindal/.pyenv/versions/3.8.5/bin/python3.8",
  "version": "0.8.3",
  "versions": {
    "dephell-archive": "0.1.7",
    "dephell-argparse": "0.1.3",
    "dephell-changelogs": "0.0.1",
    "dephell-discover": "0.2.10",
    "dephell-licenses": "0.1.7",
    "dephell-links": "0.1.5",
    "dephell-markers": "1.0.3",
    "dephell-pythons": "0.1.15",
    "dephell-setuptools": "0.2.4",
    "dephell-shells": "0.1.5",
    "dephell-specifier": "0.2.2",
    "dephell-venvs": "0.1.17",
    "dephell-versioning": "0.1.2"
  }
}

Please help.

[amitjindal]

Hi. Anyone? Please tell me what I can do to prevent this?