Built-in functions

Question 1

Function: abs(x)

Answer 1

Description: Returns the absolute value of a number x.

Question 2

Function: all(iterable)

Answer 2

Description: Returns True if all elements in the iterable are true (or if the iterable is empty).

Question 3

Function: any(iterable)

Answer 3

Description: Returns True if any element in the iterable is true. Returns False if the iterable is empty.

Question 4

Function: ascii(object)

Answer 4

Description: Returns a string containing a printable representation of an object, escaping non-ASCII characters.

Question 5

Function: bin(x)

Answer 5

Description: Converts an integer x to a binary string prefixed with “0b”.

Question 6

Function: bool(x)

Answer 6

Description: Converts a value x to a Boolean (True or False).

Question 7

Function: breakpoint()

Answer 7

Description: Enters the debugger at the call site.

Question 8

Function: bytearray(source)

Answer 8

Description: Returns a new array of bytes.

Question 9

Function: bytes(source)

Answer 9

Description: Returns a new “bytes” object (immutable).

Question 10

Function: callable(object)

Answer 10

Description: Returns True if the object appears callable (like a function), False otherwise.

Question 11

Function: chr(i)

Answer 11

Description: Returns the string representing a character whose Unicode code point is the integer i.

Question 12

Function: classmethod(function)

Answer 12

Description: Transforms a method into a class method.

Question 13

Function: complex(real, imag)

Answer 13

Description: Creates a complex number.

Question 14

Function: delattr(object, name)

Answer 14

Description: Deletes the named attribute from the object.

Question 15

Function: dict(**kwargs)

Answer 15

Description: Creates a new dictionary.

Question 16

Function: dir(object)

Answer 16

Description: Returns a list of valid attributes for the specified object.

Question 17

Function: divmod(a, b)

Answer 17

Description: Returns a tuple containing the quotient and the remainder of (a / b).

Question 18

Function: enumerate(iterable, start=0)

Answer 18

Description: Returns an enumerate object (iterator of tuples with count and value).

Question 19

Function: filter(function, iterable)

Answer 19

Description: Constructs an iterator from elements of iterable for which function returns true.

Question 20

Function: float(x)

Answer 20

Description: Converts a string or number x to a floating-point number.

Question 21

Function: format(value, format_spec)

Answer 21

Description: Formats a value using a specified format specification.

Question 22

Function: frozenset(iterable)

Answer 22

Description: Returns a new immutable frozenset object.

Question 23

Function: getattr(object, name, default)

Answer 23

Description: Gets the value of a named attribute from an object

Question 24

Function: globals()

Answer 24

Description: Returns a dictionary representing the current global symbol table.

Question 25

Function: hasattr(object, name)

Answer 25

Description: Returns True if the object has the given named attribute.

Question 26

Function: hash(object)

Answer 26

Description: Returns the hash value of the object (if it has one).

Question 27

Function: help(object)

Answer 27

Description: Invokes the built-in help system.

Question 28

Function: hex(x)

Answer 28

Description: Converts an integer x to a lowercase hexadecimal string prefixed with "0x".

Question 29

Function: id(object)

Answer 29

Description: Returns the "identity" (memory address) of an object.

Question 30

Function: input(prompt)

Answer 30

Description: Reads a line from console, converting it to a string.

Question 31

Function: int(x)

Answer 31

Description: Converts a string or number x to an integer.

Question 32

Function: isinstance(object, classinfo)

Answer 32

Description: Returns True if the object is an instance of the classinfo.

Question 33

Function: issubclass(class, classinfo)

Answer 33

Description: Returns True if class is a subclass of classinfo.

Question 34

Function: iter(object)

Answer 34

Description: Returns an iterator object.

Question 35

Function: len(s)

Answer 35

Description: Returns the length (number of items) of an object s.

Question 36

Function: list(iterable)

Answer 36

Description: Creates a new list.

Question 37

Function: locals()

Answer 37

Description: Returns a dictionary representing the current local symbol table.

Question 38

Function: map(function, iterable, ...)

Answer 38

Description: Returns an iterator that applies function to every item of iterable.

Question 39

Function: max(iterable)

Answer 39

Description: Returns the largest item in an iterable.

Question 40

Function: min(iterable)

Answer 40

Description: Returns the smallest item in an iterable.

Question 41

Function: next(iterator, default)

Answer 41

Description: Retrieves the next item from the iterator.

Question 42

Function: object()

Answer 42

Description: Returns a new featureless object (base for all classes).

Question 43

Function: oct(x)

Answer 43

Description: Converts an integer x to an octal string prefixed with "0o".

Question 44

Function: open(file, mode)

Answer 44

Description: Opens a file and returns a corresponding file object.

Question 45

Function: ord(c)

Answer 45

Description: Returns the integer representing the Unicode code point of the character c.

Question 46

Function: pow(base, exp, mod)

Answer 46

Description: Returns base to the power exp

Question 47

Function: print(*objects, sep=' ', end='\\n', file=sys.stdout, flush=False)

Answer 47

Description: Prints objects to the text stream file.

Question 48

Function: property(fget, fset, fdel, doc)

Answer 48

Description: Returns a property attribute.

Question 49

Function: range(stop)

Answer 49

Description: Returns an immutable sequence of numbers.

Question 50

Section: range(start, stop, step)

Answer 50

Description: Returns an immutable sequence of numbers from start to stop by step.

Question 51

Function: repr(object)

Answer 51

Description: Returns a string containing a printable representation of an object (for debugging).

Question 52

Function: reversed(seq)

Answer 52

Description: Returns a reverse iterator.

Question 53

Function: round(number, ndigits)

Answer 53

Description: Rounds a number to a given precision in decimal digits.

Question 54

Function: set(iterable)

Answer 54

Description: Creates a new set object.

Question 55

Function: setattr(object, name, value)

Answer 55

Description: Sets the value of a named attribute on an object.

Question 56

Function: slice(stop)

Answer 56

Description: Returns a slice object.

Question 57

Function: slice(start, stop, step)

Answer 57

Description: Returns a slice object representing the set of indices specified by range(start, stop, step).

Question 58

Function: sorted(iterable, key=None, reverse=False)

Answer 58

Description: Returns a new sorted list from the items in iterable.

Question 59

Function: staticmethod(function)

Answer 59

Description: Transforms a method into a static method.

Question 60

Function: str(object)

Answer 60

Description: Returns a 'str' version of object (human-readable).

Question 61

Function: sum(iterable, start=0)

Answer 61

Description: Sums the items of an iterable from left to right and returns the total.

Question 62

Function: super()

Answer 62

Description: Returns a proxy object that delegates method calls to a parent or sibling class.

Question 63

Function: tuple(iterable)

Answer 63

Description: Creates a new tuple.

Question 64

Function: type(object)

Answer 64

Description: Returns the type of an object.

Question 65

Function: vars(object)

Answer 65

Description: Returns the __dict__ attribute of an object.

Question 66

Function: zip(*iterables)

Answer 66

Description: Returns an iterator that aggregates elements from each of the iterables.