Update python tutorial

[codewithdhruba01]

We should add a dedicated Python Dictionaries chapter to the website to help learners understand this core data structure. Dictionaries are a fundamental part of Python, and covering them in detail will improve the completeness

[github-actions]

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[github-actions]

👤 Issue assigned to @sanjay-kv.

[sanjay-kv]

This is in the plan once we complete the basic python documentation

[codewithdhruba01]

I will cover all the chapters step by step.

[sanjay-kv]

that would be great