Sort a Dictionary by Value in Python: sorted(), Ties, and Top Values
Sort Python dictionaries by value with sorted(), lambda, itemgetter, reverse order, tie-breakers, and ordered output.
Tutorials
Browse Python tutorials for beginners and working developers, including syntax, libraries, examples, projects, and real problem-solving guides.
Convert Bytes to String in Python with decode()
Decode Python bytes safely with an explicit encoding, handle invalid data deliberately, and keep text-versus-binary boundaries clear in files and APIs.
Convert Hexadecimal to Decimal in Python with int()
Convert hexadecimal strings to decimal integers in Python with int(base=16), handle 0x prefixes and validation, and format results safely.
Python Semicolon: When to Use ; in Code
Learn when Python semicolons separate simple statements, why one statement per line is clearer, and which syntax cannot be compressed safely.
Array of Strings in Python: Lists, array, and NumPy
Store strings in Python with lists, the array module, or NumPy, and choose the right representation for typing, performance, indexing, and text operations.
Decrement a For Loop in Python with range()
Decrement a Python for loop with range(start, stop, -step), understand the exclusive stop value, and avoid off-by-one and zero-step errors.
Find a String in a Python List: Exact, Partial, and Case-Insensitive
Find strings in a Python list with in, index, any, and comprehensions while choosing exact, substring, case-insensitive, and duplicate-match behavior.
Carriage Return in Python: Newlines, splitlines(), and Output
Understand carriage return in Python, use splitlines(), normalize CRLF text, preserve file endings, update terminal progress, and handle CSV files.
Python String to Variable Name: Use Dictionaries Safely
Map Python strings to values with dictionaries or object attributes, validate names, and understand why globals(), locals(), and exec() are fragile choices.
Check Data Type in Python: type() and isinstance()
Check Python types with type() for exact identity, isinstance() for compatible classes, and explicit value or behavior validation.