Find a Character in a String with Python: find(), index(), and Regex
Find characters in Python strings with in, find(), index(), count(), any(), and regular expressions while handling missing matches and case sensitivity clearly.
Python Blog: Tutorials, Fixes, and Projects
Browse practical Python tutorials, error fixes, library guides, data science examples, and project ideas from Python Pool.
Import Python from Another Directory: Packages and Project Layout
Import Python modules from another directory with package structure, absolute imports, python -m, editable installs, and safer alternatives to sys.path hacks.
PyQt5 Terminal Widget with QProcess: Async Output and Input
Build a responsive PyQt5 terminal widget with QPlainTextEdit, QLineEdit, QProcess signals, streamed output, and safe command handling.
Python Current Directory: os.getcwd(), Path.cwd(), and __file__
Get the Python working directory, distinguish process cwd from the script folder, and build portable paths with pathlib.
Python strftime(): Date Formatting Codes, Timezones, and Parsing
Format Python date and time objects with strftime directives, parse matching text, and handle timezone, locale, and filename boundaries.
Python Curly Brackets: Dictionaries, Sets, and f-Strings
Python braces create dictionaries and sets and format f-strings; learn the punctuation rules, empty-container difference, and literal escaping.
Python @ Symbol: Decorators and Matrix Multiplication
Understand the Python @ symbol for decorators and matrix multiplication, with syntax, evaluation order, and NumPy examples.
Python trace Module: Trace Execution and Coverage
Trace Python line execution, collect counts, install a custom hook, and distinguish trace from memory-allocation diagnostics.
Python robots.txt: Create and Test Crawl Rules
Learn how to create and test a Python robots.txt workflow with user agents, allow and disallow rules, sitemap hints, caching, and safe crawler behavior.
openpyxl: Read and Write Excel Files in Python
Read and write Excel workbooks with openpyxl, including worksheets, cells, formulas, saving, and macro-enabled XLSM files.