Hi Everyone

## Finding vaccination booking slot is open or close in Chennai

Rengaraj gave a talk on selenium
 - He explained how he avoided queue in getting token at vaccine center in
Chennai
  using a small piece of code
 - He navigate through various windows in www.gccvaccine.in to determine
vaccine booking is open or close
 - He explained how to extract xpath using xpath helper chrome extension
 - He used xpath to find the element object and give that in put to action
chains
 - He also explained little on dbus notification object to notify users once
the vaccine slot is available or not.


## Event-State-Action Paradigm

Vijaykumar gave a talk on state charts and how it is used in mobile
application
development.
 - He gave a demo of a quiz app implemented without state chart
  and with state chart.
 - He used sismic python library for state charts.
 - He explained how business logic is moved outside the code using state
charts
 - He showed a yaml state chart definition file which has following defined
    - states
   - target
   - event
   - gaurd
   - actions
   - transition
   - on entry

## FastAPI

Thangaselvi gave a talk on FastAPI

- She started with the history of FastAPI and how it evolved
  in a short duration
- She gave a demo api written using FastAPI
- She had a doubt on the async method used with FastAPI
- Pramesh asked to see asyncio.ensure_future to overcome her issue.

## Data cleaning with python
Sasirekha gave an impromptu talk,

She explained various methods to follow while cleaning the data
like
 - Filling missing data
 - Cleaning Outlier data on a records

She shown example on a jupiter notebook using an advertisement record
 - explained how to drop a column or row having NaN value
 - explained cleaning outlier values using age of a person

Regards
Rengaraj
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