bw-essentials-core 0.1.57

Reusable utilities for S3, email, Data Loch, Microsoft Teams Notifications and more.

bw-essentials

Here’s a rephrased version of your description with improved flow and clarity:

---

bw-essentials is a Python utility package offering modular and production-ready wrappers for core infrastructure tasks. It simplifies operations such as AWS S3 interactions, email notifications, and version-controlled data lake workflows using LakeFS. Designed for flexibility and ease of integration, it's well-suited for use across microservices, data pipelines, and automation frameworks.

In addition to infrastructure utilities, it also includes service-specific wrappers for:

1. Master Data
2. Market Pricer
3. Broker
4. Model Portfolio Reporting
5. Trade Placement
6. User Portfolio
7. User Portfolio Reporting

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📦 Installation

pip install bw-essentials

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📁 S3Utils

S3Utils provides a high-level interface to interact with AWS S3 and S3-compatible services like MinIO or LocalStack.

🔧 Initialization

from bw_essentials.s3_utils import S3Utils

s3 = S3Utils()

✅ Available Methods

Method	Description
upload_file(bucket, key, file_path)	Upload a local file to S3
download_file(bucket, key, dest_path)	Download a file from S3
list_files(bucket, prefix="")	List all files under a prefix
read_file(bucket, key)	Read and return the content of a file
delete_file(bucket, key)	Delete a specific file
file_exists(bucket, key)	Check if a file exists
get_latest_file(bucket, prefix)	Get the latest file by modified time
sync_local_to_s3(bucket, prefix, local_path)	Recursively upload a local directory to S3
sync_s3_to_local(bucket, prefix, local_path)	Recursively download an S3 prefix to local
generate_presigned_url(bucket_name, object_key, expiration)	Generates Pre Signed Url for given S3 Object.

---

📬 EmailClient

EmailClient helps send email notifications with or without attachments using any SMTP server.

🔧 Initialization

from bw_essentials.email_client import EmailClient

client = EmailClient(
    sender_email="[e-mail]",
    sender_name="BW Notifier"
)

✅ Available Methods

Method	Description
send_email_without_attachment(to_addresses, cc_addresses, subject, body, is_html=True)	Send an email without attachment
send_email_with_attachment(to_addresses, cc_addresses, subject, body, attachment_path, is_html=True)	Send an email with a file attachment

• Supports both plain text and HTML.
• Accepts single or multiple recipients (str or List[str]).
• Gracefully handles invalid paths and logs detailed errors.

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🏞️ DataLoch (LakeFS Wrapper)

DataLoch wraps LakeFS Python client for working with versioned data over S3. Useful for managing commits, branches, and file operations in a data lake.

🔧 Initialization

from bw_essentials.data_loch import LakeFS

dl = LakeFS()

You can pass branch and repo to individual methods or initialize them via dl.repo = "repo" and dl.branch = "branch".

✅ Available Methods

Method	Description
upload_file(local_path, repo, branch, dest_path)	Upload a single file to a branch
download_file(repo, branch, file_path, dest_path)	Download a single file
sync_local_to_lakefs(local_path, repo, branch, dest_prefix)	Recursively upload a directory
sync_lakefs_to_local(repo, branch, src_prefix, local_path)	Recursively download a directory
commit(repo, branch, message)	Commit the current changes on a branch
get_latest_file(repo, branch, prefix)	Get latest file (by time) under a prefix
delete_file(repo, branch, file_path)	Delete a specific file

• Supports S3-compatible object storage behind LakeFS.
• Handles versioning and commit messages for reproducibility.

---

🧪 Example Use Case

# Send notification with S3 report
from bw_essentials.s3_utils import S3Utils
from bw_essentials.email_client import EmailClient

s3 = S3Utils("AK", "SK")
file_path = "/tmp/report.csv"
s3.download_file("my-bucket", "reports/weekly.csv", file_path)

email_client = EmailClient("[e-mail]", "Report Bot")
email_client.send_email_with_attachment(
    to_addresses="[e-mail]",
    cc_addresses=["[e-mail]"],
    subject="Weekly Report",
    body="<h1>Attached is your report</h1>",
    attachment_path=file_path
)

Here’s the updated setup.py with a module docstring and updated dependencies:

🔔 Notifications

Notifications helps send structured alerts and logs to external communication tools like Microsoft Teams and Zenduty. Ideal for operational awareness and incident response workflows.

🔧 Initialization

from bw_essentials.notifications import Notifications

notifier = Notifications(
    title="BW Alerts",
    summary="Pipeline Failure",
    message="Daily data sync failed.",
    webhook_url="https://sample.webhook.url"
)

✅ Available Methods

Method	Description
notify_message(message=None, summary=None, alert=False)	Send a general log message to Teams
notify_error(message=None, summary=None, alert=True, trace=None, request_id=None)	Send an error alert to Teams and Zenduty

• Automatically uses different formats for logs vs. alerts.
• Teams messages are sent via Adaptive Cards.
• Zenduty alerts include critical summaries and tracebacks.
• You can override the default message, summary, trace, and request_id per notification.

📘 Example Use Case

notifier.notify_error(
    message="ETL job failed due to timeout.",
    summary="Job: daily-prices-sync",
    trace="Traceback (most recent call last): ...",
    request_id="req-123abc"
)

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Let me know if you'd like a logo badge, GitHub Actions setup, or example .whl build as well.

📬 Contact

For bugs or feature requests, open an issue or contact [e-mail]