spryx-core 0.1.2

Core utilities and types for Spryx projects

spryx-core

A Python package providing core utilities and types for Spryx projects.

Installation

pip install spryx-core

Or with Poetry:

poetry add spryx-core

Features

spryx-core provides common utilities and type definitions used across Spryx projects, including:

Entity IDs

• ULID generation and validation (with UUID fallback)
• Custom EntityId type

from spryx_core import EntityId, generate_entity_id, is_valid_ulid

# Generate a new ID
entity_id = generate_entity_id()

# Validate an ID
if is_valid_ulid(some_string):
    # ...

Time Utilities

• ISO-8601 UTC formatting and parsing
• Common time operations (start/end of day, etc.)

from spryx_core import now_utc, to_iso, parse_iso, start_of_day

# Get current UTC time
now = now_utc()

# Format as ISO string
iso_string = to_iso(now)

# Parse ISO string
dt = parse_iso("2023-04-01T12:00:00.000Z")

# Get start of day
day_start = start_of_day(now)

Sentinel Values

• NotGiven sentinel and related utilities
• NOT_GIVEN singleton instance

from spryx_core import NOT_GIVEN, NotGivenOr, is_given

def my_function(optional_param: NotGivenOr[str] = NOT_GIVEN):
    if is_given(optional_param):
        # Handle provided value
    else:
        # Handle not provided case

Enumerations

• Common enum types (Environment, SortOrder, etc.)

from spryx_core import Environment, SortOrder

# Environment types
if env == Environment.PRODUCTION:
    # ...

# Sort order
order = SortOrder.ASC

Documentation

Module: spryx_core.id

Functions for generating and validating entity IDs:

• generate_entity_id() -> EntityId: Generates a new ULID or UUID
• is_valid_ulid(value: str) -> bool: Validates a ULID string
• cast_entity_id(value: str) -> EntityId: Casts a string to an EntityId

Module: spryx_core.time

Date/time utilities with UTC focus:

• now_utc() -> datetime: Gets current UTC time
• to_iso(dt: datetime, milliseconds: bool = False) -> str: Formats as ISO-8601
• parse_iso(value: str) -> datetime: Parses ISO-8601 string
• utc_from_timestamp(ts: int | float) -> datetime: Converts timestamp to datetime
• start_of_day(dt: datetime | None = None) -> datetime: Gets day start (00:00:00)
• end_of_day(dt: datetime | None = None) -> datetime: Gets day end (23:59:59.999999)

Module: spryx_core.types

Type utilities:

• is_given(obj: NotGivenOr[_T]) -> TypeGuard[_T]: Checks if value is not NotGiven
• default_or_given(obj: NotGivenOr[_T], default: Any = None) -> Union[_T, None]: Gets value or default

Module: spryx_core.enums

Common enumerations:

• SortOrder: ASC, DESC
• Environment: DEV, STAGING, PRODUCTION

Module: spryx_core.sentinels

Sentinel values:

• NotGiven: Sentinel for unspecified values, distinct from None

Module: spryx_core.constants

Exported constants:

• NOT_GIVEN: Singleton instance of NotGiven

License

This project is licensed under the MIT License - see the LICENSE file for details.

Requirements

• Python 3.11+
• Dependencies:
  • python-ulid (>=3.0.0,<4.0.0)
  • pydantic (>=2.11.3,<3.0.0)