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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()
classbool
classbytearray

See CPython documentation: bytearray.

classbytes

See CPython documentation: bytes.

callable()
chr()
classmethod()
compile()
classcomplex
delattr(obj, name)

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

classdict
dir()
divmod()
enumerate()
eval()
exec()
filter()
classfloat
classfrozenset
getattr()
globals()
hasattr()
hash()
hex()
id()
input()
classint
classmethodfrom_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()
classlist
locals()
map()
max()
classmemoryview

See CPython documentation: memoryview.

min()
next()
classobject
oct()
open()
ord()
pow()
print()
property()
range()
repr()
reversed()
round()
classset
setattr()
classslice

The slice builtin is the type that slice objects have.

sorted()
staticmethod()
classstr
sum()
super()
classtuple
type()
zip()

Exceptions

exceptionAssertionError
exceptionAttributeError
exceptionException
exceptionImportError
exceptionIndexError
exceptionKeyboardInterrupt

See CPython documentation: KeyboardInterrupt.

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

exceptionKeyError
exceptionMemoryError
exceptionNameError
exceptionNotImplementedError
exceptionOSError
exceptionRuntimeError
exceptionStopIteration
exceptionSyntaxError
exceptionSystemExit

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.

exceptionTypeError

See CPython documentation: TypeError.

exceptionValueError
exceptionZeroDivisionError