egos-helpers

A python library for helper functions. Used in the egos-tech projects.

Functions

gather_environ: Return a dict of environment variables correlating to the keys dict.
get_environ_value: Resolve a single value from an environment variable or its _FILE companion (file-based secrets).
short_msg: Truncates the message to chars characters and adds two dots at the end.
strtobool: Converts a string to a boolean
redact: Replaces in message the param string with replace_value
key_to_title: Converts a key in the form a_is_b to a title in the form A Is B
slugify: Converts a string to a URL-safe slug of at most max_length characters
setup_logger: Sets up and returns a logger, optionally with a GELF handler
get_formatter: Builds the log record formatter, which adds source locations at DEBUG

See egos_helpers/core.py for the full description of each function.

Usage example

Install egos-helpers:

python3 -m venv .venv
source .venv/bin/activate
# if you don't have a requirements.txt file
pip install -U egos-helpers
# if you do have a requirements.txt file
pip install -U -r requirements.txt

In your python project:

from egos_helpers import gather_environ


class MyClass:
    keys = {
        "key_one": {
            "default": ["one", 2],
            "type": "list",
        },
        "key_two": {
            "hidden": True,
            "default": False,
            "type": "boolean",
        },
        "key_three": {
            "default": {},
            "type": "filter",
        },
        "key_four": {
            "default": None,
            "redact": True,
            "type": "string",
        },
        "key_five": {
            "default": 12,
            "type": "int",
        },
        "key_six": {
            "default": "INFO",
            "type": "enum",
            "values": ["DEBUG", "INFO", "WARNING", "ERROR"],
        },
        "key_seven": {
            "default": "12",
            "deprecated": True,
            "replaced_by": "key_five",
            "type": "int",
        },
    }

    def __init__(self):
        envkeys = gather_environ(keys=MyClass.keys)
        print(envkeys)

With KEY_ONE=one, KEY_THREE=foo=bar, KEY_FOUR=super_secret_string, KEY_FIVE=33, KEY_SIX=WARNING and the rest unset, gather_environ returns:

{
    "key_one": ["one"],
    "key_two": False,
    "key_three": {"foo": "bar"},
    "key_four": "super_secret_string",
    "key_five": 33,
    "key_six": "WARNING",
}

key_seven is deprecated and unset, so it is left out. A key that is unset returns its default exactly as declared, without being converted to the key's type.

File-based secrets

Use get_environ_value to resolve a value from either an environment variable or a <NAME>_FILE file path (the container secrets convention). It reads <NAME>_FILE first (returning the file contents stripped of surrounding whitespace), falls back to <NAME>, and returns None when neither is set. Setting both raises an error. So does an unreadable <NAME>_FILE path.

from egos_helpers import get_environ_value

# MYAPP_TOKEN=secret123           -> "secret123"
# MYAPP_TOKEN_FILE=/run/secrets/t -> contents of the file, stripped
token = get_environ_value("MYAPP_TOKEN")

Metadata

Release files for egos-helpers 1.3.3

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for egos-helpers 1.3.3
File	Size	Uploaded
egos_helpers-1.3.3.tar.gz	12.0 kB	Jul 31, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for egos-helpers 1.3.3
File	Interpreter	ABI	Platform	Reset
egos_helpers-1.3.3-py3-none-any.whl 12.0 kB Jul 31, 2026	Python 3	none	any	Details

Total release size: 24.1 kB

Release files / egos_helpers-1.3.3.tar.gz

Download URL	egos_helpers-1.3.3.tar.gz
Size	12.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`337c81c0e5c2c6003a8668b4388ef7b07e15de8e9c32f3799c424effefc3c1f6`
BLAKE2b-256 checksum How to use checksums	`ee86542246b7697dee041d3862adb5ca45b8924482c6faf3c87a15037a0c0981`
Upload date	Jul 31, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/2.3.3 CPython/3.14.5 Linux/7.0.0-28-generic`

Release files / egos_helpers-1.3.3-py3-none-any.whl

Download URL	egos_helpers-1.3.3-py3-none-any.whl
Size	12.0 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`1e8a82815898ad437c6ce5961530215ebbf6496c7f2f562df6490dcb0b6fc3d6`
BLAKE2b-256 checksum How to use checksums	`1abc40edcee1aa2c001653bd68103406a7ffd6a42cc3ca8c33c31ab95819bcc7`
Upload date	Jul 31, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/2.3.3 CPython/3.14.5 Linux/7.0.0-28-generic`