python-core

A comprehensive repository for learning and practicing core Python concepts — from basics to advanced topics, organized by category.

---

Project Structure

python-core/
├── basic/                      # Python fundamentals
├── operators/                  # All operator types
├── conditions/                 # Conditional statements
├── loops/                      # Loop constructs
├── strings/                    # String operations & algorithms
├── collections/                # Lists, tuples, sets, dicts
├── data_structures/            # Comprehensions, slicing, stacks
├── advance_data_structures/    # deque, defaultdict, namedtuple, JSON/CSV
├── functions/                  # Functions, lambdas, scope
├── control_structures/         # Control flow, exceptions, match
├── exceptions/                 # Exception handling patterns
├── File_handling/              # File I/O operations
├── module_packages/            # Modules and packages
├── numerics/                   # Math and numeric functions
├── dsa/                        # Data structures & algorithms (CSV)
├── json_to_csv/                # JSON to CSV conversion utility
├── password-generator/         # Password generation scripts
├── advance_projects/           # Real-world mini projects
└── projects_mini/              # Fun mini projects (calculator, turtle)

---

Modules

basic/

Covers the very first steps in Python.

File	Description
hello_world.py	First Python program
declaration.py	Variable declaration
variables.py	Variable usage and naming
data_types.py	int, float, str, bool, None
numbers.py	Number types and operations
arithematic_operators.py	Basic arithmetic
fibinocci.py	Fibonacci sequence

---

operators/

All Python operator types with examples.

File	Description
arithmetic_operators.py	+, -, *, /, //, %, **
comparison_operators.py	==, !=, <, >, <=, >=
logical_operators.py	and, or, not
assignment_operators.py	=, +=, -=, etc.
bitwise_operators.py	&, |, ^, ~, <<, >>
identity_operators.py	is, is not
membership_operators.py	in, not in
conditional_operators.py	Ternary / conditional expressions

---

conditions/

Conditional logic and user input handling.

File	Description
if_conditions.py	Basic if
if_else_conditions.py	if-else
if_elif_else_conditions.py	if-elif-else chains
nested_if_conditions.py	Nested conditionals
ternary_if_condition.py	One-liner conditionals
user_input.py	Reading and validating user input

---

loops/

Loop constructs in Python.

File	Description
basicloops.py	Loop fundamentals
forloop.py	for loop with ranges and iterables
whileloop.py	while loop with conditions

---

strings/

String manipulation, algorithms, and built-in methods.

File	Description
lesson1.py	String basics
format_string.py	f-strings and .format()
reverse_string.py	Reverse a string
palindrome.py	Palindrome check
anagram_string.py	Anagram detection
capitalize_words.py	Word capitalization
convert_capital_string.py	Case conversion
first_non_repeat_char.py	First non-repeating character
frequent_chat_in_string.py	Most frequent character
vowels_in_string.py	Count vowels
remove_punctuation.py	Strip punctuation
remove_witespace_string.py	Strip whitespace
replace_sub_string.py	Substring replacement
split_string.py	Splitting strings
join_words_in_string.py	Joining strings
starts_with_ends_with.py	startswith / endswith
relate_functions.py	Common string methods

---

collections/

Python built-in collection types.

File	Description
lists.py	List basics
list_program.py	List programs
tuples.py	Tuple usage
sets.py	Set operations
dictionaries.py	Dictionary usage

---

data_structures/

Advanced usage of Python data structures.

File	Description
list_comprehence.py	List comprehensions
dictionary_comprehence.py	Dict comprehensions
list_functions.py	map, filter, sorted
list_slicing.py	Slicing syntax
list_stack.py	Stack using list
dictionary_methods.py	Dict methods
set_operations.py	Union, intersection, difference
tuples.py	Tuple packing/unpacking
merge_sorted.py	Merge sorted lists

---

advance_data_structures/

Python's collections module and data handling.

File	Description
defaultdict.py	collections.defaultdict
deque.py	collections.deque
named_tuple.py	collections.namedtuple
data_manipulation.py	Data transformation techniques
json_parsing.py	Parsing JSON data
string_parsing_date_handling.py	String and date parsing

---

functions/

Function definitions, arguments, and scope.

File	Description
define.py	Defining and calling functions
function_argument.py	*args, **kwargs, defaults
global_local.py	Global vs local scope
lambda_function.py	Lambda expressions

---

control_structures/

Control flow, pattern matching, and exception-integrated I/O.

File	Description
conditions.py	Conditional control flow
loops.py	Loop control (break, continue)
control_flow_mechanisms.py	Combined control flow
match_statement.py	Python 3.10+ match statement
match_color.py	match with color patterns
exception_file_io.py	Exceptions in file I/O
exception_https.py	Exceptions in HTTP requests
exception_userinput.py	Exceptions in user input
advance_control_structures.py	Advanced patterns

---

exceptions/

Exception handling patterns and custom exceptions.

File	Description
try_except_else_finally.py	Full exception block
multiple_exceptions.py	Catching multiple exceptions
custom_exceptions.py	Defining custom exception classes
validate_error_custom_exception.py	Validation with custom exceptions
file_operations.py	Exception-safe file operations

---

File_handling/

Reading, writing, and managing files.

File	Description
open_close.py	open() and close()
write_read.py	Write and read files
appendmode.py	Append to files
with_statement.py	Context manager (with)
handling_exception.py	Exception handling in file ops
realtime_file_scenario.py	Real-world file handling scenario

---

module_packages/

Creating and using Python modules and packages.

File	Description
greeting.py	Simple module
greeting_main.py	Importing and using a module
utils.py	Utility functions module
my_package/greet.py	Package module
my_package/greet1.py	Package module variant

---

numerics/

Math operations and numeric utilities.

File	Description
math_module_functions.py	math module — sqrt, ceil, floor, etc.
numeric_functions.py	Built-in numeric functions

---

dsa/

Data structures and algorithms with file-based data.

File	Description
data.csv	Sample dataset
data_read.py	Reading and processing CSV data

---

json_to_csv/

Utility to convert JSON data to CSV format.

File	Description
input.json	Sample JSON input
converter.py	Conversion logic
output.csv	Generated CSV output

---

password-generator/

Scripts to generate secure passwords.

File	Description
generate_password.py	Core password generator
sample_generator.py	Sample usage
python_console_clean.py	Console output utilities

---

advance_projects/

Real-world Python utility scripts.

File	Description
calender-appointment.py	Calendar and appointment management
hostname_ip_address.py	Fetch hostname and IP address

---

projects_mini/

Fun mini projects.

File	Description
calc.py	Command-line calculator
my_turtle_game.py	Turtle graphics game
turtle_india_map.py	Draw India map using turtle

---

Requirements

• Python 3.10+ (required for match statement)
• No external dependencies for most modules
• turtle module — included in Python standard library

---

Getting Started

git clone https://github.com/Prabhakar-Naik/python-core.git
cd python-core
python basic/hello_world.py

---

Learning Path

1. basic/ → operators/ → conditions/ → loops/
2. strings/ → collections/ → data_structures/
3. functions/ → control_structures/ → exceptions/
4. File_handling/ → module_packages/ → advance_data_structures/
5. dsa/ → json_to_csv/ → advance_projects/ → projects_mini/