Poetry

PyProject 1

Sample PyProject from: https://github.com/volfpeter/motorhead/tree/main

PyProject

poetry init
poetry add motor pydantic
poetry add mkdocs-material mkdocstrings[python] mypy ruff poethepoet pytest pytest-asyncio pytest-random-order --group dev
[project]
name = "motorhead"
description = "Async MongoDB with vanilla Pydantic v2+ - made easy."
readme = "README.md"
license = { text = "MIT" }
authors = [
    { name = "Peter Volf", email = "do.volfp@gmail.com" },
]
requires-python = ">=3.10"
dependencies = ["pydantic", "motor"]
classifiers = [
    "Intended Audience :: Information Technology",
    "Operating System :: OS Independent",
    "Programming Language :: Python :: 3",
    "Development Status :: 4 - Beta",
    "Topic :: Internet",
    "Topic :: Software Development :: Libraries",
    "Topic :: Software Development",
    "Typing :: Typed",
    "Environment :: Web Environment",
    "Framework :: FastAPI",
    "Intended Audience :: Developers",
    "License :: OSI Approved :: MIT License",
    "Topic :: Internet :: WWW/HTTP",
]

[project.urls]
homepage = "https://github.com/volfpeter/motorhead"
documentation = "https://volfpeter.github.io/motorhead"
tracker = "https://github.com/volfpeter/motorhead/issues"

[tool.poetry]
name = "motorhead"
version = "0.2403.0"
description = "Async MongoDB with vanilla Pydantic v2+ - made easy."
authors = ["Peter Volf <do.volfp@gmail.com>"]
readme = "README.md"
packages = [{include = "motorhead"}]

[tool.poetry.dependencies]
python = "^3.10"
motor = "^3.1.0"
pydantic = "^2.1.0"

[tool.poetry.group.dev.dependencies]
mkdocs-material = "^9.5.19"
mkdocstrings = {extras = ["python"], version = "^0.25.0"}
mypy = "^1.10.0"
ruff = "^0.4.2"
poethepoet = "^0.26.0"
pytest = "^8.2.0"
pytest-asyncio = "^0.23.6"
pytest-docker = "^3.1.1"
pytest-random-order = "^1.1.1"

[tool.mypy]
strict = true
show_error_codes = true
exclude = ["tree_app"]

[[tool.mypy.overrides]]
module = ["motor.*"]
ignore_missing_imports = true

[tool.ruff]
line-length = 108
lint.exclude = [
    ".git",
    ".mypy_cache",
    ".pytest_cache",
    ".ruff_cache",
    ".venv",
    "dist",
    "docs",
]
lint.select = [
    "E",  # pycodestyle errors
    "W",  # pycodestyle warnings
    "F",  # pyflakes
    "I",  # isort
    "S",  # flake8-bandit - we must ignore these rules in tests
    "C",  # flake8-comprehensions
    "B",  # flake8-bugbear
]

[tool.ruff.lint.per-file-ignores]
"tests/**/*" = ["S101"]  # S101: use of assert detected

[tool.pytest.ini_options]
addopts = "--random-order"

[tool.poe.tasks]
serve-docs = "mkdocs serve"
check-format = "ruff format --check ."
lint = "ruff check ."
mypy = "mypy ."
format = "ruff format ."
lint-fix = "ruff . --fix"
test = "python -m pytest tests --random-order"

static-checks.sequence = ["lint", "check-format", "mypy"]
static-checks.ignore_fail = "return_non_zero"

[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"

Any Comments ?

sha256: 889b2e95d218175c3503451a55e2c17af3760750a9b2d6e52559b7f336bee043

OpenBSD 7.4 DevBox

OpenBSD 7.4

… will be released next week (23. Oct 2023). Why not have a look at the upcomming OS and prepare a VM for Software Development ?

Preparation

grab a fresh VM and Install OpenBSD 7.4

os version

puffy74# sysctl kern.version
kern.version=OpenBSD 7.4 (GENERIC.MP) #1396: Sun Oct  8 09:20:40 MDT 2023
    deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP

empty vm

puffy74# pkg_info
quirks-6.159        exceptions to pkg_add rules and cache

add go, rust, python

puffy74# pkg_add go rust python3
quirks-6.159 signed on 2023-10-07T10:09:24Z
go-1.21.1: ok
rust-1.72.1:nghttp2-1.56.0: ok
rust-1.72.1:nghttp3-0.15.0: ok
rust-1.72.1:ngtcp2-0.19.1: ok
rust-1.72.1:curl-8.3.0p0: ok
rust-1.72.1:libssh2-1.11.0: ok
rust-1.72.1: ok
python3-3.10p2:xz-5.4.4: ok
python3-3.10p2:sqlite3-3.42.0: ok
python3-3.10p2:libiconv-1.17: ok
python3-3.10p2:gettext-runtime-0.22.2: ok
python3-3.10p2:libffi-3.4.4: ok
python3-3.10p2:bzip2-1.0.8p0: ok
python3-3.10p2:python-3.10.13: ok
python3-3.10p2: ok

show packages

Poetry Packages

Let’s play with Packages and Libraries

References

Switch to Root Folder

cd /some/path/you/want

Create a new Package

poetry new mypackage

add some libraries

poetry add requests

… add some code …

cat << 'EOF' > mypackage/__init__.py
print("importing", __name__)
EOF

cat << 'EOF' > mypackage/main.py
print("importing", __name__)

def test1():
  print("test1")

def test2(name: str):
  print("hello", name)

def test3(name: str, age:int):
  print(f"Hello {name} at age {age}")

if __name__ == "__main__":
  print("This is a Library or Package. You should import it into your Code and not run it directly ...")
EOF

Build Package

poetry build

List Tree

(mypackage-py3.11) stoege@host:~/git/demo/mypackage> tree
.
├── README.md
├── dist
│   ├── mypackage-0.1.0-py3-none-any.whl
│   └── mypackage-0.1.0.tar.gz
├── mypackage
│   ├── __init__.py
│   └── main.py
├── poetry.lock
├── pyproject.toml
└── tests
    └── __init__.py

4 directories, 8 files

you have a package called “mypackage-0.1.0” created. As ’tar.gz and ‘.whl’ File

Little Mail Validator in Python

wrote a little Mail Adresse Validator in Python. use it, modify it, like it … best practice for python is to use a virtual env like Poetry (or virtualenv) and add the “email-validator” module like this:

poetry add email-validator

Code

few lines of code …

#!/usr/bin/env python3

from email_validator import validate_email, EmailNotValidError

ok=[]
nok=[]

emails = [
        "my+address@mydomain.tld", "hans@dampf.ch", "gott@welt.net",
        "adsf@asdf.com", "asf.asdf", "franz!mueller@abc.com", "asdf@asdf.adf"
        ]

print ("\nMy Little Mail Validator\n")

for email in emails:

    try:
        # Validate.
        valid = validate_email(email)

        # Update with the n
        email = valid.email

        # Append to List
        ok.append(email)

    except EmailNotValidError as e:

        # email is not valid, exception message is human-readable
        nok.append(str(e))


print ("*** Mail ok ***")
for item in ok:
    print("ok: ", item)

print ("\n*** Mail NOT ok ***")
for item in nok:
    print("NOK:", item,"!")

print()

Run

just run and enjoy …

Poetry

1. Intro

Poetry is a tool for dependency management and packaging in Python. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you.

Install on OpenBSD

Wanna Install on OpenBSD ?

# get root
doas su -

Install as Root

# Install Poetry
pip3 install --user poetry

# on error PEP 668:
#pip3 install --user poetry --break-system-packages

# Update Poetry
pip3 install poetry -U

# Update Profile
cat << EOF >> ~/.profile

# Poetry, added $(date)
export PATH=\$PATH:/root/.local/bin
EOF

. ~/.profile

Install as User poetry

# Update Poetry
pip3 install poetry -U

# Update Profile
cat << EOF >> ~/.profile

# Poetry, added $(date)
export PATH=\$PATH:~/.local/bin
EOF

. ~/.profile

Install on Debian

Run as User or Root