Python Built in Functions

Python Built in Functions

Python comes with a variety of built-in functions that are always available for use. Here's a list of some commonly used built-in functions:

  1. Basic Operations:

    • abs(): Return the absolute value of a number.
    • len(): Return the length (number of items) of an object.
    • max(): Return the largest item in an iterable or the largest of two or more arguments.
    • min(): Return the smallest item in an iterable or the smallest of two or more arguments.
    • sum(): Return the sum of a 'start' value (default: 0) plus an iterable of numbers.
    • round(): Round a number to a given precision in decimal digits.

  2. Type Conversion:

    • int(): Convert a number or string to an integer.
    • float(): Convert a number or string to a floating point number.
    • str(): Return a string version of the object.
    • list(): Convert an iterable to a list.
    • tuple(): Convert an iterable to a tuple.
    • dict(): Create a new dictionary.
    • set(): Return a new set object.

  3. Input/Output:

    • print(): Print objects to the text stream file.
    • input(): Read a string from standard input.

  4. Iterable Operations:

    • sorted(): Return a new sorted list from the elements of any iterable.
    • reversed(): Return a reverse iterator.
    • enumerate(): Return an enumerate object.
    • filter(): Construct an iterator from elements of iterable for which function returns true.
    • map(): Apply function to every item of iterable and return a list of the results.
    • zip(): Make an iterator that aggregates elements from each of the iterables.

  5. Character and String Operations:

    • chr(): Return the string representing a character whose Unicode code point is the integer.
    • ord(): Return an integer representing the Unicode character.
    • ascii(): Return a string representing an object.

  6. Mathematical Operations:

    • divmod(): Return a pair of numbers (a tuple) consisting of their quotient and remainder.
    • pow(): Return base to the power exp.

  7. Object & Class Operations:

    • isinstance(): Return whether an object is an instance of a class or of a subclass thereof.
    • issubclass(): Return whether class is a subclass (direct or indirect) of a specified class.
    • type(): Return the type of an object.

  8. Others:

    • eval(): Evaluate the given source in the context of globals and locals.
    • exec(): Execute the dynamically created Python program.
    • id(): Return the identity of an object.
    • globals(): Return a dictionary representing the current global symbol table.
    • locals(): Return a dictionary representing the current local symbol table.
    • help(): Invoke the built-in help system.

This is just a subset of the built-in functions provided by Python. There are more, and you can always refer to the official Python documentation for a comprehensive list and detailed explanations.

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