Apps

Use sorted() to return a new sorted list or list.sort() to reorder in place; both support key= and reverse= for custom order.

Use slicing for speed, reversed()+join for readability, and grapheme-aware logic for correct emoji and accent handling.

Use Python 3’s print() function to output text, with quick steps for scripts, the interactive shell, online IDEs, and Windows/macOS/Linux terminals.

Set up pip the right way, isolate dependencies with venv, and use reliable commands for versions, extras, and advanced installs.

Execute functions with parentheses, pass arguments correctly, capture return values, and invoke functions by name when needed.

Use the def keyword to declare a function, add parameters in parentheses, end the header with a colon, and indent the body.

Use the right tool for the job: filter with a list comprehension, remove by index with pop/del, or remove by value with remove.

Use ANSI escape codes or platform commands to clear the terminal in scripts and REPLs, plus editor-specific tips for PyCharm and IDLE.

Pick the right method for real numbers, negatives or complex inputs, arrays, and integers.