Here’s a comprehensive list of essential learning points in Python, covering built-in functions, strings, lists, and extending all the way to object method decorators:
-
Built-in Functions:
print()
: Display content to the console.input()
: Get user input from the console.len()
: Get the length of a string, list, or other iterable.type()
: Get the type of an object.int()
,float()
,str()
,bool()
: Convert between data types.range()
: Generate a sequence of numbers.max()
,min()
,sum()
: Find the maximum, minimum, and sum of elements in an iterable.abs()
: Get the absolute value of a number.round()
: Round a number to a specified number of decimal places.
-
Strings:
- Creating strings using single or double quotes.
- String indexing and slicing.
- String concatenation and repetition.
- String methods like
upper()
,lower()
,strip()
,replace()
,split()
, and more. - Formatting strings using f-strings or the
.format()
method. - Escaping characters using backslashes.
- String interpolation.
-
Lists:
- Creating lists with square brackets.
- List indexing, slicing, and negative indexing.
- Modifying lists: append, insert, remove, pop, extend.
- List comprehension for concise creation and manipulation.
- Sorting and reversing lists.
- Checking for membership with
in
. - Nested lists and multi-dimensional arrays.
-
Control Flow:
- Conditional statements:
if
,elif
,else
. - Loops:
for
loop,while
loop. break
andcontinue
statements.range()
function in loop iteration.enumerate()
to iterate with both index and value.zip()
to iterate over multiple lists simultaneously.
- Conditional statements:
-
Functions:
- Defining and calling functions.
- Function parameters and arguments.
- Return values and the
return
statement. - Default and keyword arguments.
- Lambda functions for concise operations.
- Scope and global/local variables.
- Recursion: functions calling themselves.
-
Lists and Iterables:
- Iterating over lists and other iterables.
- List comprehensions for compact transformations.
map()
,filter()
, andreduce()
functions.- Generators and
yield
for memory-efficient iteration. - Iteration using
iter()
andnext()
.
-
Object-Oriented Programming (OOP):
- Classes and objects.
- Attributes and methods.
- Constructors (
__init__
method) and instance variables. - Inheritance and subclasses.
- Polymorphism and method overriding.
- Encapsulation and access modifiers.
- Special methods (dunder/magic methods).
-
Decorators:
- Understanding and creating decorators.
- Using
@
syntax to apply decorators. - Decorators for modifying and enhancing functions or methods.
- Decorators with and without arguments.
- Applying multiple decorators to a single function.
-
String Formatting:
- Using f-strings for inline variable substitution.
- The
.format()
method for formatting strings. - String formatting options like alignment and precision.
str.format_map()
for advanced string formatting.
-
Error Handling:
- Using
try
,except
,else
, andfinally
blocks. - Catching specific exceptions and handling errors gracefully.
- Raising exceptions with
raise
. - Custom exception classes.
- Using
These topics cover a wide range of Python concepts, from the basics of built-in functions and strings to more advanced topics like lists, object-oriented programming, and decorators. Learning and mastering these concepts will provide you with a solid foundation to write efficient and effective Python code. If you have specific questions or need further explanations on any of these topics, feel free to ask!