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A collection of simple, reusable Python utility functions of clean, well-documented, and beginner-friendly

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01-Reverse a String.md
01-Reverse a String.md
 
 
02-Capitalize Each Word.md
02-Capitalize Each Word.md
 
 
05-Generate a Random Alphanumeric String
05-Generate a Random Alphanumeric String
 
 
10-Count Word Frequency.md
10-Count Word Frequency.md
 
 
100-Check if a String is Blank.md
100-Check if a String is Blank.md
 
 
101-normalize_whitespace.md
101-normalize_whitespace.md
 
 
102-reverse_string.md
102-reverse_string.md
 
 
103-count_vowels_in_string.md
103-count_vowels_in_string.md
 
 
104-is_palindrome_string.md
104-is_palindrome_string.md
 
 
106-generate_uuid.md
106-generate_uuid.md
 
 
107-measure_execution_time.md
107-measure_execution_time.md
 
 
108-retry_function_on_failure.md
108-retry_function_on_failure.md
 
 
109-safe_type_cast.md
109-safe_type_cast.md
 
 
11-Remove Punctuation.md
11-Remove Punctuation.md
 
 
110-Check if a File Exists Safely.md
110-Check if a File Exists Safely.md
 
 
111-create_directory_if_missing.md
111-create_directory_if_missing.md
 
 
112-read_text_file_safely.md
112-read_text_file_safely.md
 
 
113-get_environment_variable.md
113-get_environment_variable.md
 
 
114-write_text_file_safely.md
114-write_text_file_safely.md
 
 
115-Validate HTTP Status Code.md
115-Validate HTTP Status Code.md
 
 
116-extract_value_from_json.md
116-extract_value_from_json.md
 
 
12-Remove Numbers.md
12-Remove Numbers.md
 
 
13-Extract Numbersmd
13-Extract Numbersmd
 
 
14-Extract Words.md
14-Extract Words.md
 
 
15-Extract Sentences.md
15-Extract Sentences.md
 
 
16-Split Text Into Chunks.md
16-Split Text Into Chunks.md
 
 
17-Remove Stopwords.md
17-Remove Stopwords.md
 
 
18-Word Count Statistics.md
18-Word Count Statistics.md
 
 
19-Sanitize Text.md
19-Sanitize Text.md
 
 
20-Extract Emails.md
20-Extract Emails.md
 
 
21-Extract Phone Numbers.md
21-Extract Phone Numbers.md
 
 
22-Validate Phone Number.md
22-Validate Phone Number.md
 
 
23-Extract URLs.md
23-Extract URLs.md
 
 
24-Validate URL.md
24-Validate URL.md
 
 
25-Extract Domain from URL.md
25-Extract Domain from URL.md
 
 
26-Normalize URL.md
26-Normalize URL.md
 
 
27-Extract File Extension.md
27-Extract File Extension.md
 
 
28-Generate URL Slug.md
28-Generate URL Slug.md
 
 
29-Convert snake_case to camelCase.md
29-Convert snake_case to camelCase.md
 
 
3-Remove Whitespace.md
3-Remove Whitespace.md
 
 
30-Convert camelCase to snake_case.md
30-Convert camelCase to snake_case.md
 
 
31-Truncate Text.md
31-Truncate Text.md
 
 
32-Pad Text.md
32-Pad Text.md
 
 
33-Reverse Words Order.md
33-Reverse Words Order.md
 
 
34-Remove HTML Tags.md
34-Remove HTML Tags.md
 
 
35-Decode HTML Entities.md
35-Decode HTML Entities.md
 
 
36-Encode HTML Entities.md
36-Encode HTML Entities.md
 
 
37-Strip ANSI Escape Codes.md
37-Strip ANSI Escape Codes.md
 
 
38-Generate Secure Random String.md
38-Generate Secure Random String.md
 
 
39: Generate UUID.md
39: Generate UUID.md
 
 
4-Check if a String is a Palindrome.md
4-Check if a String is a Palindrome.md
 
 
40: Hash Text (SHA or MD5).md
40: Hash Text (SHA or MD5).md
 
 
41-Verify Hash.md
41-Verify Hash.md
 
 
42-Generate HMAC (Keyed-Hash Message Authentication Code).md
42-Generate HMAC (Keyed-Hash Message Authentication Code).md
 
 
43-PBKDF2-derived Key (Password Hashing).md
43-PBKDF2-derived Key (Password Hashing).md
 
 
44-Generate and Verify JWT (JSON Web Tokens).md
44-Generate and Verify JWT (JSON Web Tokens).md
 
 
45-Validate JSON Against Schema.md
45-Validate JSON Against Schema.md
 
 
46-Pretty‑Print JSON.md
46-Pretty‑Print JSON.md
 
 
47-Flatten Nested JSON.md
47-Flatten Nested JSON.md
 
 
48-Unflatten JSON (Dot‑Notation → Nested).md
48-Unflatten JSON (Dot‑Notation → Nested).md
 
 
49-Diff Two JSON Objects.md
49-Diff Two JSON Objects.md
 
 
5-count-vowels-in-a-string.md
5-count-vowels-in-a-string.md
 
 
50-Deep Merge JSON Objects.md
50-Deep Merge JSON Objects.md
 
 
51-Safe Get.md
51-Safe Get.md
 
 
52-Set Nested Key.md
52-Set Nested Key.md
 
 
53-Delete Nested Key Safely.md
53-Delete Nested Key Safely.md
 
 
54-Deep Clone JSON.md
54-Deep Clone JSON.md
 
 
55-Deep Compare JSON.md
55-Deep Compare JSON.md
 
 
56-Deep Search Key.md
56-Deep Search Key.md
 
 
6-Count Words in a String.md
6-Count Words in a String.md
 
 
60-Extract All JSON Paths.md
60-Extract All JSON Paths.md
 
 
61-Extract All JSON Values.md
61-Extract All JSON Values.md
 
 
62-Deep Rename Key.md
62-Deep Rename Key.md
 
 
63-Find Duplicate Keys in JSON.md
63-Find Duplicate Keys in JSON.md
 
 
64-Remove Null Values.md
64-Remove Null Values.md
 
 
65-Freeze JSON.md
65-Freeze JSON.md
 
 
66-Thaw JSON.md
66-Thaw JSON.md
 
 
67-JSON to Query String.md
67-JSON to Query String.md
 
 
68-Query String to JSON.md
68-Query String to JSON.md
 
 
69-Merge Query Strings.md
69-Merge Query Strings.md
 
 
7-Count Characters in a String
7-Count Characters in a String
 
 
70-Normalize Query String.md
70-Normalize Query String.md
 
 
71-Add or Update Query Parameter.md
71-Add or Update Query Parameter.md
 
 
72-Remove Query Parameter.md
72-Remove Query Parameter.md
 
 
73-Check if Query Parameter Exists.md
73-Check if Query Parameter Exists.md
 
 
74-Get Query Parameter Value.md
74-Get Query Parameter Value.md
 
 
75-Replace Query String in URL.md
75-Replace Query String in URL.md
 
 
76-Build URL.md
76-Build URL.md
 
 
77-Append Path Segments to a URL.md
77-Append Path Segments to a URL.md
 
 
78-Remove Last Path Segment from a URL.md
78-Remove Last Path Segment from a URL.md
 
 
79-Extract URL Path Segments.md
79-Extract URL Path Segments.md
 
 
8-Find the Longest Word.md
8-Find the Longest Word.md
 
 
80-Get Last Path Segment.md
80-Get Last Path Segment.md
 
 
81-Join URL and Query Parameters.md
81-Join URL and Query Parameters.md
 
 
82-Replace URL Path.md
82-Replace URL Path.md
 
 
83-Add or Replace URL Fragment.md
83-Add or Replace URL Fragment.md
 
 
84-Strip Query and Fragment from URL.md
84-Strip Query and Fragment from URL.md
 
 
85-URL to Components.md
85-URL to Components.md
 
 
86-Components to URL.md
86-Components to URL.md
 
 
87-Validate URL Format.md
87-Validate URL Format.md
 
 

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Utility Helpers

ChatGPT Image Nov 9, 2025, 12_21_08 PM

A growing collection of simple, reusable Python utility functions designed to make everyday coding cleaner and faster. Each utility is explained in plain English, with real examples, use cases, and beginner-friendly explanations.

Overview

This repository is meant for anyone learning Python or building automation/testing tools. It includes well-documented helper functions across categories like:

  • String Helpers → text cleanup, formatting, and manipulation.
  • Math Helpers → number logic, calculations, and small formulas.
  • File Helpers → reading, writing, and organizing data.

Each helper is intentionally small and readable - built to teach good programming habits while being practical enough to reuse in projects.

Folder Structure

utility-helpers/
│
├── string_helpers/
│   ├── reverse_string.py
│   ├── capitalize_words.py
│   ├── remove_whitespace.py
│   ├── is_palindrome.py
│   ├── count_vowels.py
│
├── math_helpers/
│   ├── factorial.py
│   ├── is_prime.py
│
├── file_helpers/
│   ├── read_file.py
│   ├── write_file.py
│
└── README.md

Getting Started

Clone the repository:

git clone https://github.com/yourusername/utility-helpers.git
cd utility-helpers

Each helper can be imported directly into your Python scripts.

Example usage:

from string_helpers.reverse_string import reverse_string
print(reverse_string("Hello World"))  # Output: dlroW olleH

Included Utilitie

String Helpers

Utility Description Example
reverse_string(text) Reverses a given string Hello → olleH
capitalize_each_word(text) Capitalizes first letter of each word hello world → Hello World
remove_whitespace(text) Cleans up extra spaces/tabs/newlines Hello World → Hello World
is_palindrome(text) Checks if text reads same backward madam → True
count_vowels(text) Counts number of vowels in a string Saqib → 2
count_words(text) Counts total words in a string Python helpers rock → 3
count_characters(text) Counts total characters (with or without spaces) Hello World → 11

Math Helpers

Utility Description
factorial(n) Calculates factorial of a number
is_prime(n) Checks if a number is prime

File Helpers

Utility Description
read_file(filepath) Reads file content safely
write_file(filepath, data) Writes data into a file

Why This Repo Exists

This project was created to:

  • Build a habit of writing modular, well-documented code
  • Serve as a go-to learning reference for Python basics
  • Offer a library of reusable helpers for testing, scripting, or quick automation

Every file is written with clarity, real examples, and comments that explain why things are done a certain way - not just how.

Future Additions

  • More math and file operations
  • Date/time utilities
  • Data validation helpers
  • JSON, CSV, and logging helpers

Contributing

If you’d like to contribute, feel free to fork the repo and submit a pull request with your own helper! Just make sure to:

  • Keep it simple and readable
  • Add docstrings and examples
  • Follow the folder naming convention

Created and maintained by Mohammed Saqib "Keep learning. Keep building small, clean things - they add up."

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A collection of simple, reusable Python utility functions of clean, well-documented, and beginner-friendly

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python snippets utilities clean-code scripts helpers beginner-friendly

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