python function arguments

Python function arguments 

You might have seen *, ** (asterisks ) in functions definition -arguments in python. Don't confuse them with C pointers.They are actually totally different.

Below examples take you through  defaults ,keyed and VarArgs parameter passing in python.


Reference: https://python.swaroopch.com/functions.html






python function arguments Example 1

python function arguments Example 2

Python function arguments Example 3



Python arguments with tuple and dictionary

6 ways to run python

Python language interpreter

Python interpreter can be used many ways from command line.

Beginners guide: https://wiki.python.org/moin/BeginnersGuide

Developers guide: https://devguide.python.org/

•  Call a Python interactive shell (REPL):

           python

•   Execute script in a given Python file:

           python script.py

• Execute script as part of an interactive shell:

          python -i script.py

•  Execute a Python expression:

          python -c "expression"

•  Run library module as a script (terminates option list):

          python -m module arguments

•  Interactively debug a Python script:

         python -m pdb script.py

     

8 beginners commands to start with Docker


Installation guides:


windows - https://docs.docker.com/docker-for-windows/

linux - https://docs.docker.com/engine/install/

mac - https://docs.docker.com/docker-for-mac/install/

1. List currently running docker containers:
   docker ps
   
2. List all docker containers (running and stopped):
   docker ps -a
   
3. Start a container from an image, with a custom name:
   docker run --name container_name image
   
4. Start or stop an existing container:
   docker start|stop container_name
   
5. Pull an image from a docker registry:
   docker pull image
   
6. Open a shell inside of an already running container:
   docker exec -it container_name sh
   
7. Remove a stopped container:
   docker rm container_name
   
8. Fetch and follow the logs of a container:
   docker logs -f container_name