Merge branch 'master' of https://github.com/jbcodeforce/python-code

docs/coding/dp.md

@@ -0,0 +1,40 @@
+# Design Patterns
+
+Here are some examples on how to implement some classical design pattern in Python.
+
+## Singleton
+
+Singleton Pattern ensures that only one instance of a class exists and provides a global point of access to it.
+
+```python
+class _Glossary:
+    _instance = None
+
+    # method for the singleton class....
+
+def Glossary(path:str ) -> _Glossary:
+    """Factory method to access to the unique instance"""
+    if _Glossary._instance is None:
+        _Glossary._instance = _Glossary()
+        _Glossary._instance.load_glossary(path)
+    return _Glossary._instance
+```
+
+Access to a singleton from a FastAPI app using dependency injection for example
+
+```python 
+def get_db() -> Optional[Database]:
+    return Database()
+
+app = FastAPI()
+
+@app.get("/")
+def read_root(db: Optional[Database] = Depends(get_db)):
+    if db:
+        result = db.db.my_collection.find_one()
+        return {"message": result}
+```
+
+
+## Dependency injection
+

docs/coding/references.md

@@ -0,0 +1,52 @@
+# Code references
+
+### Basics
+
+* [firstinput.py](https://github.com/jbcodeforce/python-code/blob/master/python-bible/firstinput.py) for reading user input
+* [Variable scope](https://github.com/jbcodeforce/python-code/blob/master/python-bible/scope.py) between global, local,...
+* [travis.py](https://github.com/jbcodeforce/python-code/blob/master/python-bible/travis.py) to play with lists, for in range() and conditions
+* [cinema.py](https://github.com/jbcodeforce/python-code/blob/master/python-bible/cinema.py) to illustrate how to use for dictionary
+* [Play with data structures](https://github.com/jbcodeforce/python-code/blob/master/python-bible/datastructure.py): lists, queues, matrix, sets, and more dictionaries, with how to navigate into those structures
+* [Reverse a word and add aye](https://github.com/jbcodeforce/python-code/blob/master/python-bible/pig.py), use loops, break, in voyals...
+* [Object Oriented Python](https://github.com/jbcodeforce/python-code/blob/master/python-bible/coins.py): classes and inheritance: using constructor (__init__()) and method with self argument.
+* [Modules, import, and packages](https://github.com/jbcodeforce/python-code/blob/master/python-bible/TestFiboModule.py). Do not forget to set PYTHONPATH to the root folder to access any new modules
+
+### Flask 
+
+* [Flask web app hello world](https://github.com/jbcodeforce/python-code/blob/master/Flask/helloworld/firstApp.py) then [REST API end point with Flask](https://github.com/jbcodeforce/python-code/blob/master/firstRESTApp.py) and staticApp.py
+* [Flask serving a simple angular App](https://jbcodeforce.github.io/angular-sandbox)
+* [TDD with Flask app and docker from testdriven.io course](https://github.com/jbcodeforce/python-code/tree/master/Flask/flask-tdd-docker)
+
+
+### Algorithms
+
+* [Sorting arrays](https://github.com/jbcodeforce/python-code/blob/master/algorithms/sort.py): Bubblesort, selection sort, insertion sort and quicksort.
+* [Binary Tree with InOrderTraversal, PreOrderTraversal, PostOrderTraversal](https://github.com/jbcodeforce/python-code/blob/master/algorithms/traversalbinarytree.py).
+* [Binary search within a sorted array](https://github.com/jbcodeforce/python-code/blob/master/algorithms/binarySearch.py) which is a divide and conquer algorithm.
+* [Depth First Search, graph, Breadth First Search](https://github.com/jbcodeforce/python-code/blob/master/algorithms/Graph.py) DFS: explores the highest-depth nodes first before being forced to backtrack and expand shallower nodes. BFS: explores all of the neighbor nodes at the present depth prior to moving on to the nodes at the next depth level.
+
+
+### Graphics
+
+* [Use a simple graphics API](https://github.com/jbcodeforce/python-code/blob/master/graphics/testgraphics.py) to create a window, draw circle and move them.
+* [Plotting normal curve with matplotlib](https://github.com/jbcodeforce/python-code/blob/master/matplotlib/PlotGaussian.py)
+
+### Web scrawling
+
+Use urllib and beautiful soup to remove html tags from a web page to get text to parse. See [this note](webcrawling/readme.md) for guidances
+
+* [Use regular expression (re module)](https://github.com/jbcodeforce/python-code/blob/master/web_data/countNumbers.py) to extract number from a text read from a file.
+
+### Astronomy
+
+See [detailed note here](astronomy/README.md) and code is under `astronomy` folder.
+
+### AWS
+
+To get some sample code to use AWS SDK [see this folder](https://github.com/jbcodeforce/python-code/blob/master/aws).
+
+## Unit testing
+
+* [unittest](https://docs.python.org/3/library/unittest.html#)
+* [Pytest framework](https://docs.pytest.org/en/7.3.x/#)
+* [moto for backend mockup]http://docs.getmoto.org/en/latest/index.html)

docs/index.md

@@ -1,75 +1,57 @@
 # Python Studies
 
-This repository regroups a bench of python codes from my own self-training and studies for web development, crawling, python best practice, and [raspberry PI](https://www.raspberrypi.org/) work.
+This repository regroup Python codes and notes from my own self-training and studies for web app development, crawling, Data AI, and even with [raspberry PI](https://www.raspberrypi.org/) work.
 
 ## Language Advantages / disadvantages
 
 **Advantages:**
 
 * Interpreted with shell to start quickly, more concise language
-* 2nd most used programming language
+* May be now the 1st most used programming language
 * A lot of libraries, used a lot by data scientists
-* Combines functional and OOP.
+* Combines functional and Object Oriented Programming.
 * Raspberry PI language of choice
+* Even new libraries are done to implement server side user interface, with project like Streamlit, [gradio.app](https://www.gradio.app/docs/), [Nice gui](https://nicegui.io/); [taipy](taipy.io)
 
 **Disadvantages:**
 
 * Slow, not supporting well multi cpu / threading architecture
 * Not great for mobile and 3D game programming
 
-## Code in the order of knowledge acquisition
+## Getting started
 
-### Basics
+See this good [tutorial from Programiz](https://www.programiz.com/python-programming#tutorial)
 
-* [firstinput.py](https://github.com/jbcodeforce/python-code/blob/master/python-bible/firstinput.py) for reading user input
-* [Variable scope](https://github.com/jbcodeforce/python-code/blob/master/python-bible/scope.py) between global, local,...
-* [travis.py](https://github.com/jbcodeforce/python-code/blob/master/python-bible/travis.py) to play with lists, for in range() and conditions
-* [cinema.py](https://github.com/jbcodeforce/python-code/blob/master/python-bible/cinema.py) to illustrate how to use for dictionary
-* [Play with data structures](https://github.com/jbcodeforce/python-code/blob/master/python-bible/datastructure.py): lists, queues, matrix, sets, and more dictionaries, with how to navigate into those structures
-* [Reverse a word and add aye](https://github.com/jbcodeforce/python-code/blob/master/python-bible/pig.py), use loops, break, in voyals...
-* [Object Oriented Python](https://github.com/jbcodeforce/python-code/blob/master/python-bible/coins.py): classes and inheritance: using constructor (__init__()) and method with self argument.
-* [Modules, import, and packages](https://github.com/jbcodeforce/python-code/blob/master/python-bible/TestFiboModule.py). Do not forget to set PYTHONPATH to the root folder to access any new modules
+Python is an interpreted Object Oriented & functional language. It organizes the code in modules.
+Use blank to indent code block. The coding style is known as PEP8.
 
-### Flask 
+[3.12 Release Product documentation](https://docs.python.org/3.12/library/index.html)
 
-* [Flask web app hello world](https://github.com/jbcodeforce/python-code/blob/master/Flask/helloworld/firstApp.py) then [REST API end point with Flask](https://github.com/jbcodeforce/python-code/blob/master/firstRESTApp.py) and staticApp.py
-* [Flask serving a simple angular App](https://jbcodeforce.github.io/angular-sandbox)
-* [TDD with Flask app and docker from testdriven.io course](https://github.com/jbcodeforce/python-code/tree/master/Flask/flask-tdd-docker)
+Use virtual environment to avoid impacting operating system python own libraries.
 
+```sh
+# create one virtual env: it can be reused between a lot of project.
+python -m venv .venv
+# on windows
+source .venv/Scripts/activate
+# on Mac
+source .venv/activate
+```
 
-### Algorithms
+## Python readings
 
-* [Sorting arrays](https://github.com/jbcodeforce/python-code/blob/master/algorithms/sort.py): Bubblesort, selection sort, insertion sort and quicksort.
-* [Binary Tree with InOrderTraversal, PreOrderTraversal, PostOrderTraversal](https://github.com/jbcodeforce/python-code/blob/master/algorithms/traversalbinarytree.py).
-* [Binary search within a sorted array](https://github.com/jbcodeforce/python-code/blob/master/algorithms/binarySearch.py) which is a divide and conquer algorithm.
-* [Depth First Search, graph, Breadth First Search](https://github.com/jbcodeforce/python-code/blob/master/algorithms/Graph.py) DFS: explores the highest-depth nodes first before being forced to backtrack and expand shallower nodes. BFS: explores all of the neighbor nodes at the present depth prior to moving on to the nodes at the next depth level.
+* [3.8 release Product documentation](https://docs.python.org/3.8/library/index.html)
+* [Python software foundation tutorial](http://docs.python.org/3/tutorial/index.html)
+* [Tutorial from Programiz](https://www.programiz.com/python-programming#tutorial)
+* [Using Docker For Python Web Development](https://vsupalov.com/docker-python-development/)
+* [The Flask Mega-Tutorial](https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world)
+* [Improve environment for Flask webapp](https://vsupalov.com/flask-megatutorial-review/)
+* [10 Steps to Set Up Your Python Project for Success](https://towardsdatascience.com/10-steps-to-set-up-your-python-project-for-success-14ff88b5d13)
+* [Kafka Python](https://github.com/confluentinc/confluent-kafka-python)
+* [Python 2.0 Quick Reference](http://www.brunningonline.net/simon/python/quick-ref2_0.html): old web site
+* [Getting started with pymongo a mongodb driver](https://www.mongodb.com/blog/post/getting-started-with-python-and-mongodb)
+* [pymongo documentation](https://api.mongodb.com/python/current/api/pymongo/collection.html)
 
+Statistics
 
-### Graphics
-
-* [Use a simple graphics API](https://github.com/jbcodeforce/python-code/blob/master/graphics/testgraphics.py) to create a window, draw circle and move them.
-* [Plotting normal curve with matplotlib](https://github.com/jbcodeforce/python-code/blob/master/matplotlib/PlotGaussian.py)
-
-### Web scrawling
-
-Use urllib and beautiful soup to remove html tags from a web page to get text to parse. See [this note](webcrawling/readme.md) for guidances
-
-* [Use regular expression (re module)](https://github.com/jbcodeforce/python-code/blob/master/web_data/countNumbers.py) to extract number from a text read from a file.
-
-### Astronomy
-
-See [detailed note here](astronomy/README.md) and code is under `astronomy` folder.
-
-### AWS
-
-To get some sample code to use AWS SDK [see this folder](https://github.com/jbcodeforce/python-code/blob/master/aws).
-
-## Unit testing
-
-* [unittest](https://docs.python.org/3/library/unittest.html#)
-* [Pytest framework](https://docs.pytest.org/en/7.3.x/#)
-* [moto for backend mockup]http://docs.getmoto.org/en/latest/index.html)
-
-## Some tricks
-
-* placing cursor to previous line and enter will copy the line to a new line
+* [The Statistics and Calculus with Python Workshop](https://learning.oreilly.com/library/view/the-statistics-and/9781800209763/)

docs/python/python-summary.md

@@ -1,23 +1,4 @@
 # Python Summary
-
-See this good [tutorial from Programiz](https://www.programiz.com/python-programming#tutorial)
-
-Python is an interpreted Object Oriented & functional language. It organizes the code in modules.
-Use blank to indent code block. The coding style is known as PEP8.
-
-[3.9 release Product documentation](https://docs.python.org/3.9/library/index.html)
-
-## Getting started
-
-Start a python interpreter: `python3` and start entering python code, develop a progname.py file and use `python3 progname.py`, or add `#!/usr/bin/env python3` to make it self runnable.
-
-The code can be structured with function `def name():`  and then with our without a main part:
-
-```python
-if __name__ == "__main__":
-```
-
-Better to use main statement when using objects and classes.
 
 ## Concepts
 

mkdocs.yml

@@ -1,24 +1,29 @@
 site_name: Python code studies
 repo_url: https://github.com/jbcodeforce/python-code
 nav:
-  - Introduction: index.md
-  - Development environment: dev-env.md
-  - Summary: python/python-summary.md
-  - FAQ: python/faq.md
-  - Web App with Flask: 
+  - Introduction: 
+    - Basic: index.md
+    - Summary: python/python-summary.md
+    - Advanced: python/faq.md
+  - Coding:
+    - Development environment: coding/dev-env.md
+    - Design patterns: coding/dp.md
+    - Code studies: coding/references.md
+  - Data & AI:
+    - Pandas: data/pandas/index.md
+    - Web Data: data/webcrawling/readme.md
+    - Python and data sciences: https://jbcodeforce.github.io/ML-studies
+  - Web App:
+    - FastAPI: fastapi/index.md 
     - Flask studies and basic samples: flask/readme.md
     - Flask Rest microservice with TDD and Docker: flask/flask-tdd-docker.md
-  - AWS: aws/index.md
-  - Web Data: webcrawling/readme.md
-  - Pandas: pandas/index.md
-  - Sub-projects:
-    - FastAPI: fastapi/index.md
-    - Python and Spark: https://jbcodeforce.github.io/spark-studies
-    - Python and data sciences: https://jbcodeforce.github.io/ML-studies
-    - Astronomy statistics and image processing: astronomy/README.md
     - Flask webapp template with docker: https://github.com/jbcodeforce/python-code/tree/master/Flask/firstRESTapp
+    - Pydantic: python/pydantic.md
+  - Techno:
+    - AWS: techno/aws/index.md
+    - Python and Spark: https://jbcodeforce.github.io/spark-studies  
+    - Astronomy statistics and image processing: astronomy/README.md
     - Kafka consumer and producer: https://jbcodeforce.github.io/kafka-studies
-  - Compendium: python/compendium.md
   - Back to main: https://jbcodeforce.github.io/
 
 theme: 

web_server/websocket_server/main.py

@@ -48,7 +48,7 @@
 
 class ConnectionManager:
     """
-    Used to keep active connection with the multiple clients
+    Used to keep active connection with multiple clients
     """
     def __init__(self):
         self.active_connections: list[WebSocket] = []