reading-notes

Pain and Suffering

describe the main challenges faced by beginners when learning Python?

the pain of growth,is the most challenging faced by beginners, most times it won’t feel good.

strategies for overcoming these obstacles

• seek the remedy! Ask questions that bridge the gap between what you know and what you need to be able to do. Research!
• Don’t experience the pain in silence—that slides toward needless pain and the realm of suffering.
• Find the common thread that makes the pain worthwhile, that puts the pain into perspective.

## Guide to Big O

### concept of time complexity and space complexity.

Big O specifically describes the worst-case scenario, and can be used to describe the execution time required or the space used (e.g. in memory or on disk) by an algorithm.

The Time Complexity of an algorithm/code is not equal to the actual time required to execute a particular code, but the number of times a statement executes.

The space Complexity of an algorithm is the total space taken by the algorithm with respect to the input size. Space complexity includes both Auxiliary space and space used by input.

Names and Values in Python

Difference between mutable and immutable in python

mutable it means that we can change their content without changing their identity, like Lists and Dictionaries.

immutable don’t allow this change. You’ll just have the option of creating new objects of the same type with different values.