Setech Utilities

Python utility library for API clients, logging, and various development tasks.

Installation

Install the package using pip:

pip install setech

Or with virtualenv (recommended):

python -m venv .venv 
source .venv/bin/activate # On Linux/macOS

Extra Dependencies

The following optional dependencies are available:

Install extras:

pip install "setech[django]"      # Django support
pip install "setech[drf]"         # Django REST Framework
pip install "setech[dns]"         # DNS utilities
pip install "setech[dns-redis]"   # DNS cache with Redis

Core Dependencies

The package requires the following core dependencies:

• httpx2[http2]
• num2words
• phonenumberslite
• pydantic
• unidecode

Development Setup

The repository uses uv as the package manager and dependency resolver.
Follow these steps to get a fully‑featured development environment with one command.

# 1. Create and activate a virtual environment (recommended)
python -m venv .venv 
source .venv/bin/activate # On Windows use `.venv\Scripts\activate`
# 2. Install uv (if you don’t already have it)
curl -LsSf [https://astral.sh/uv/install.sh](https://astral.sh/uv/install.sh) | sh
# 3. Sync all base, dev and optional extras in a single command
uv sync --dev
# 4. Verify everything is installed
uv run python -m pip list | grep setech

What the --dev flag does

• Installs the core dependencies listed under [project].
• Adds the optional extras django, drf and dns‑redis (via setech[... ]).
• Installs the development tooling (ipython, ruff, mypy, test runners, etc.) from the [dependency-groups] dev section.
• Resolves transitive dependencies only once, so no duplication occurs.

Tip: If you ever need to refresh the lockfile after a dependency bump, run:

uv sync --dev --upgrade

Example code

API Clients

# integration/client.py
from setech import SyncClient


class LocalClient(SyncClient):
    name = "local"
    _base_url = "https://obligari.serveo.net/ping/local"

    def __init__(self, nonce=None):
        super().__init__(nonce)
        self._session.headers.update(
            {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; rv:123.0) Gecko/20100101 Firefox/123.0"}
        )

    def send_post_ping(self, var1: str, var2: int) -> bool:
        res = self.post("/some-post", json={"variable_one": var1, "second_variable": var2})
        return res.json().get("status")

    def send_put_ping(self, var1: str, var2: int) -> bool:
        res = self.put("/some-put", data={"variable_one": var1, "second_variable": var2})
        return res.json().get("status")

    def send_get_ping(self, var1: str, var2: int) -> bool:
        res = self.get("/some-get", params={"variable_one": var1, "second_variable": var2})
        return res.json().get("status")

    def send_patch_ping(self, var1: str, var2: int) -> bool:
        res = self.put("/some-patch", data=(("variable_one", var1), ("variable_one", var2)))
        return res.json().get("status")

    def send_trace_ping(self, var1: str, var2: int) -> bool:
        res = self.trace("/some-trace", params=(("variable_one", var1), ("variable_one", var2)))
        return res.json().get("status")

# integration/main.py
from integration.client import LocalClient


client = LocalClient()
client.send_post_ping("asd", 123)
client.send_put_ping("asd", 123)
client.send_get_ping("asd", 123)
client.send_patch_ping("asd", 123)
client.send_trace_ping("asd", 123)

Log output

Simple

[14d709e02c0c] Preparing POST request to "https://obligari.serveo.net/ping/local/some-post"
[14d709e02c0c] Sending request with payload=b'{"variable_one": "asd", "second_variable": 123}'
[14d709e02c0c] Response response.status_code=200 str_repr_content='{"status":true,"request_id":62}'
[14d709e02c0c] Preparing GET request to "https://obligari.serveo.net/ping/local/some-get"
[14d709e02c0c] Sending request with payload=None
[14d709e02c0c] Response response.status_code=200 str_repr_content='{"status":true,"request_id":63}'

Structured

{"app": "dev", "level": "DEBUG", "name": "APIClient", "date_time": "2024-03-09 22:59:24", "location": "api_client/client.py:_request:71", "message": "[cfbdadc56f53] Preparing POST request to \"https://obligari.serveo.net/ping/local/some-post\"", "extra_data": {"hooks": {"response": []}, "method": "POST", "url": "https://obligari.serveo.net/ping/local/some-post", "headers": {}, "files": [], "data": [], "json": {"variable_one": "asd", "second_variable": 123}, "params": {}, "auth": null, "cookies": null}}
{"app": "dev", "level": "INFO", "name": "APIClient", "date_time": "2024-03-09 22:59:24", "location": "api_client/client.py:_request:74", "message": "[cfbdadc56f53] Sending request with payload=b'{\"variable_one\": \"asd\", \"second_variable\": 123}'", "extra_data": {"payload": "{\"variable_one\": \"asd\", \"second_variable\": 123}"}}
{"app": "dev", "level": "INFO", "name": "APIClient", "date_time": "2024-03-09 22:59:25", "location": "api_client/client.py:_request:81", "message": "[cfbdadc56f53] Response response.status_code=200 str_repr_content='{\"status\":true,\"request_id\":72}'", "extra_data": {"status_code": 200, "content": "{\"status\":true,\"request_id\":72}"}}
{"app": "dev", "level": "DEBUG", "name": "APIClient", "date_time": "2024-03-09 22:59:25", "location": "api_client/client.py:_request:71", "message": "[cfbdadc56f53] Preparing GET request to \"https://obligari.serveo.net/ping/local/some-get\"", "extra_data": {"hooks": {"response": []}, "method": "GET", "url": "https://obligari.serveo.net/ping/local/some-get", "headers": {}, "files": [], "data": [], "json": null, "params": {"variable_one": "asd", "second_variable": 123}, "auth": null, "cookies": null}}
{"app": "dev", "level": "INFO", "name": "APIClient", "date_time": "2024-03-09 22:59:25", "location": "api_client/client.py:_request:74", "message": "[cfbdadc56f53] Sending request with payload=None", "extra_data": {"payload": "{}"}}
{"app": "dev", "level": "INFO", "name": "APIClient", "date_time": "2024-03-09 22:59:25", "location": "api_client/client.py:_request:81", "message": "[cfbdadc56f53] Response response.status_code=200 str_repr_content='{\"status\":true,\"request_id\":74}'", "extra_data": {"status_code": 200, "content": "{\"status\":true,\"request_id\":73}"}}

django features

Using the setech.django in a Django project

Models

The library ships two abstract base models that can be inherited to get timestamping, UUID and audit fields.

# myapp/models.py
from django.db import models
from setech.django.models import TimeStampedUUIDModel, UserTimeStampedUUIDModel


class Article(TimeStampedUUIDModel):
    title = models.CharField()
    content = models.TextField()


class Comment(UserTimeStampedUUIDModel):
    article = models.ForeignKey(Article, on_delete=models.CASCADE)
    text = models.TextField()

What each base class provides

Validators

setech.django.validators contains a handful of reusable validator functions that can be dropped straight into Django model fields or form/serializer validations.
They wrap common checks such as phone numbers, personal IDs and MX‑record validation for e‑mail addresses.

# myapp/models.py
from django.db import models
from setech.django.models import TimeStampedUUIDModel
from setech.django.validators import django_phone_number_validator, django_personal_code_validator,
    django_validate_email_mx_domain, validate_image_and_svg_file_extension


class UserProfile(TimeStampedUUIDModel):
    # Phone number in international format, e.g. "+44 20 7946 0958" 
    phone = models.CharField(validators=[django_phone_number_validator])

    # Personal ID (SSN/NRIC/etc.) – the validator automatically uses your
    # `settings.COUNTRY_CODE` (e.g. "LV" for Latvia)
    personal_id = models.CharField(max_length=20, validators=[django_personal_code_validator])

    # Email address – ensures the domain can receive mail
    email = models.EmailField(validators=[django_validate_email_mx_domain])

    # Image file – ensures the file is either image or svg
    picture = models.FileField(validators=[validate_image_and_svg_file_extension])

Customizing the country code

The validators rely on settings.COUNTRY_CODE to decide which format to expect.
Add the following to your Django settings:

# settings.py
from setech.django.constants import Country

...
COUNTRY_CODE = Country.LV  # Latvia, change to your locale