Here are many Python interpreters being used(CPython, PyPy, Jython, IronPython...). Here I select PyPy to achieve. The final goal of this project is providing a simple Python interpreter. The features of this interpreter will be introduced in the following part.
- It can execute simple arithmetical and logical operations
- It can run conditional statements and loops
- Only print(..., (end=...)), range(), input() functions are supported(only one or two strings or variables can be printed for one time)
The tests consist of eight parts.
- simple add, simple substract, simple multipy, simple divide: the default value are '123' and '456', and testers can enter two value that you want to calculate.
- if_statement: calculate the absolute value of the difference value of two value.
- fibonacci_loop: print the 'n'th fibonacci value.
- sum_up: sum up from '1' to 'n' that you enter.
- combine_strings: print the combination of two strings with a space between strings.
Just type "make test" to begin the tests. If you want to test your program, please type "python __main__.py xxx.py".
| Date | Progress |
|---|---|
| Feb 6 | Begin building the structure |
| Feb 7 | Begin writing bytecode operations |
| Feb 10 | Begin writing the VM class |
| Feb 13 | Begin writing the block and frame class |
| Feb 15 | Begin debugging |
| Feb 18 | Preparing the experiments |
| Feb 25 | Writing the technical documentation |
The design of this interpreter partly refers to Byterun by Allison Kaptur and Ned Batchelder. From Byterun, I adopted the basic structure and principles of designing a Python interpreter.