dlt-hub

dlt-hub/dlt

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

4.8K stars 434 forks 4.8K watchers Python Apache License 2.0

data data-engineering data-lake data-loading data-warehouse elt extract load python transform

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15 Open Issues Need Help Last updated: Jan 26, 2026

Open Issues Need Help

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Resources can't use arguments with lists as default values 9 days ago

AI Summary: A `dlt` user reports an error when a `dlt.resource` attempts to use a list argument from its parent `dlt.source` as a default value. The provided code demonstrates that passing a list to the source and then using it as a default for a resource's list argument leads to a runtime error, preventing the resource from being called successfully.

Complexity: 2/5

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Bug: DLT + Athena breaks workgroups with Managed Query Results 9 days ago

AI Summary: This GitHub issue describes a configuration deadlock when using DLT with Athena workgroups that have "Managed Query Results" enabled. DLT requires a `query_result_bucket` to be specified, but Athena (via PyAthena) mandates it be unset when managed results are active. This prevents DLT from functioning with such Athena setups, and the expected behavior is for DLT to support Athena's managed query results.

Complexity: 3/5

bug good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

dlt tries OAuth in GCP Instead of Service Account Credentials when given Service Account Credentials via credential file 27 days ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Support Snowflake-provided OAuth token in Snowpark Container Services about 1 month ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

schema_contract freeze on columns reports schema violation when column is not new about 1 month ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

bigquery_adapter() silently drops partition hint when same column is used for both partition and cluster about 2 months ago

bug good first issue destination

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

feat: Add column description support for BigQuery adapter about 2 months ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

State restoration fails silently when pipeline name contains double underscores (`__`) about 2 months ago

bug good first issue destination

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Allow passing oracle arraysize to sqlalchemy when using sql_database source 2 months ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Interaction between values returned by a resource and configuring a pydantic schema 2 months ago

bug good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

warn users when pending packages are processed 3 months ago

good first issue QoL

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Slow parquet reading 4 months ago

good first issue question

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data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

[Databricks destination] Support for table optimization techniques in Databricks: partitioning, liquid clustering, data-skipping 4 months ago

help wanted

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Prevent users from setting the same name for final and staging dataset 5 months ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform

Generate destination docs section from DestinationCapabilitiesContext object 5 months ago

good first issue

4.8K

data load tool (dlt) is an open source Python library that makes data loading easy 🛠️

Python

#data#data-engineering#data-lake#data-loading#data-warehouse#elt#extract#load#python#transform