micropython/tests/basics/builtin_override.py

# test overriding builtins

import builtins

# override generic builtin
try:
    builtins.abs = lambda x: x + 1
except AttributeError:
    import sys
    print("SKIP")
    sys.exit()

print(abs(1))

# __build_class__ is handled in a special way
builtins.__build_class__ = lambda x, y: ('class', y)
class A:
    pass
print(A)
py: Allow builtins to be overridden. This patch adds a configuration option (MICROPY_CAN_OVERRIDE_BUILTINS) which, when enabled, allows to override all names within the builtins module. A builtins override dict is created the first time the user assigns to a name in the builtins model, and then that dict is searched first on subsequent lookups. Note that this implementation doesn't allow deleting of names. This patch also does some refactoring of builtins code, creating the modbuiltins.c file. Addresses issue #959. 2014-12-09 16:19:48 +00:00			`# test overriding builtins`

			`import builtins`

			`# override generic builtin`
tests/basic/[a-f]*: Make skippable. For small ports which don't have all features enabled. 2017-02-14 21:57:56 +00:00			`try:`
			`builtins.abs = lambda x: x + 1`
			`except AttributeError:`
			`import sys`
			`print("SKIP")`
			`sys.exit()`

py: Allow builtins to be overridden. This patch adds a configuration option (MICROPY_CAN_OVERRIDE_BUILTINS) which, when enabled, allows to override all names within the builtins module. A builtins override dict is created the first time the user assigns to a name in the builtins model, and then that dict is searched first on subsequent lookups. Note that this implementation doesn't allow deleting of names. This patch also does some refactoring of builtins code, creating the modbuiltins.c file. Addresses issue #959. 2014-12-09 16:19:48 +00:00			`print(abs(1))`

			`# __build_class__ is handled in a special way`
			`builtins.__build_class__ = lambda x, y: ('class', y)`
			`class A:`
			`pass`
			`print(A)`