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builtins – builtin functions and exceptions

All builtin functions and exceptions are described here. They are also available via builtins module.

Functions and types

abs()

all()

any()

bin()

class bool

class bytearray

class bytes

See CPython documentation: bytes.

callable()

chr()

classmethod()

compile()

class complex

delattr(obj, name)

The argument name should be a string, and this function deletes the named attribute from the object given by obj.

class dict

dir()

divmod()

enumerate()

eval()

exec()

filter()

class float

class frozenset

getattr()

globals()

hasattr()

hash()

hex()

id()

input()

class int

classmethod from_bytes(bytes, byteorder)

In MicroPython, byteorder parameter must be positional (this is compatible with CPython).

to_bytes(size, byteorder)

In MicroPython, byteorder parameter must be positional (this is compatible with CPython).

Note

The optional signed kwarg from CPython is not supported. MicroPython currently converts negative integers as signed, and positive as unsigned. (Details.)

isinstance()

issubclass()

iter()

len()

class list

locals()

map()

max()

class memoryview

min()

next()

class object

oct()

open()

ord()

pow()

print()

property()

range()

repr()

reversed()

round()

class set

setattr()

class slice

The slice builtin is the type that slice objects have.

sorted()

staticmethod()

class str

sum()

super()

class tuple

type()

zip()

Exceptions

exception AssertionError

exception AttributeError

exception Exception

exception ImportError

exception IndexError

exception KeyboardInterrupt

See CPython documentation: KeyboardInterrupt.

See also in the context of Soft Bricking (failure to boot).

exception KeyError

exception MemoryError

exception NameError

exception NotImplementedError

exception OSError

exception RuntimeError

exception StopIteration

exception SyntaxError

exception SystemExit

See CPython documentation: SystemExit.

On non-embedded ports (i.e. Windows and Unix), an unhandled SystemExit exits the MicroPython process in a similar way to CPython.

On embedded ports, an unhandled SystemExit currently causes a Soft Reset of MicroPython.

exception TypeError

See CPython documentation: TypeError.

exception ValueError

exception ZeroDivisionError