codemach

Small module that executes python code objects.

Install

pip3 install codemach

Development

git clone git@github.com:chuck1/codemach
cd codemach
pipenv --python /usr/bin/python3.6
pipenv install
pipenv run pip3 install -e .
pipenv run pytest

Example

from codemach import Machine

m = Machine(verbose=True)

s = """ def func(a, b): return a + b func(2, 3)"""

c = compile(s, '<string>', 'exec')

m.exec(c)

Below is the output. Each line shows the opname and the stack after the operation.

------------- begin exec LOAD_CONST [<class 'code'>] LOAD_CONST [<class 'code'>, "'func'"] MAKE_FUNCTION ['<codemach.FunctionType object, function=func>'] STORE_NAME [] LOAD_NAME ['<codemach.FunctionType object, function=func>'] LOAD_CONST ['<codemach.FunctionType object, function=func>', '2'] LOAD_CONST ['<codemach.FunctionType object, function=func>', '2', '3'] ------------- begin exec LOAD_FAST ['2'] LOAD_FAST ['2', '3'] BINARY_ADD ['5'] RETURN_VALUE [] ------------- return CALL_FUNCTION ['5'] POP_TOP [] LOAD_CONST ['None'] RETURN_VALUE [] ------------- return