Add python script to repo

[pmb59]

Adds a python script to dynamically fetch and parse experiment metadata from the EBI Gene Expression Atlas (GXA) API, outputting structured data in valid YAML format.

The script retrieves experiment accessions, extracts key details such as organism, experiment type, and assay groups, and ensures properly formatted YAML for downstream processing.

GitHub action included for linting yaml and python code.

[anilthanki]

consider renaming pythonic-query.py to something self explanatory for example fetch_gxa_metadata.py or gxa_metadata_extractor.py or something similar

[anilthanki]

consider renaming pythonic-query.py to something self explanatory for example fetch_gxa_metadata.py or gxa_metadata_extractor.py or something similar

With recent comments from Christina about table data format.. converting to dict will make more sense as it can be converted to various format we need, like YAML, JSON, TSV/CSV, XML etc

[pmb59]

consider renaming pythonic-query.py to something self explanatory for example fetch_gxa_metadata.py or gxa_metadata_extractor.py or something similar

With recent comments from Christina about table data format.. converting to dict will make more sense as it can be converted to various format we need, like YAML, JSON, TSV/CSV, XML etc

comment addressed here: b8cace9

[anilthanki]

Are these both yaml_filename and yaml_filename required or either is fine..

if aim is to generate both file per run, consider taking just one optional argument like file_name with some default value and just change extension so user need to provide only one argument or none.

if aim is to generate either then script needs some logic at the EOF

[anilthanki]

code outside defined functions is a bit scattered, may be consider using a main function to make it more readable

[anilthanki]

code outside defined functions is a bit scattered, may be consider using a main function to make it more readable

I had a second look and its not scattered but divided into two blocks top and bottom .. so this comment can be ignored... but still using a main function might benefit it