readme and example change

README.md

@@ -3,14 +3,14 @@ A Python Interpreter written in Rust :snake: :scream: :metal:.
 
 [![Build Status](https://travis-ci.org/RustPython/RustPython.svg?branch=master)](https://travis-ci.org/RustPython/RustPython)
 
-# Usage (Not implemented yet)
+# Usage
 
 To test RustPython, do the following:
 
     $ git clone https://github.com/RustPython/RustPython
     $ cd RustPython
     $ cargo run demo.py
-    42
+    Hello, RustPython!
 
 Or use the interactive shell:
 
@@ -19,9 +19,9 @@ Or use the interactive shell:
     >>>>> 2+2
     4
 
-Or use pip to install extra modules:
+<!-- Or use pip to install extra modules:
 
-    $ cargo run -m pip install requests
+    $ cargo run -m pip install requests -->
 
 # Goals
 
@@ -30,12 +30,12 @@ Or use pip to install extra modules:
 
 # Code organization
 
-    - `parser`: python lexing, parsing and ast
-    - `vm`: python virtual machine
-    - `src`: using the other subcrates to bring rustpython to life.
-    - `docs`: documentation (work in progress)
-    - `py_code_object`: CPython bytecode to rustpython bytecode convertor (work in progress)
-    - `tests`: integration test snippets
+- parser: python lexing, parsing and ast  
+- vm: python virtual machine  
+- src: using the other subcrates to bring rustpython to life.  
+- docs: documentation (work in progress)  
+- py_code_object: CPython bytecode to rustpython bytecode convertor (work in progress)  
+- tests: integration test snippets
 
 # Community
 

demo.py

@@ -1,2 +1,2 @@
 
-print(42)
+print("Hello, RustPython!")

demo2.py

@@ -1 +0,0 @@
-print(2 + 3)

vm/README.md

@@ -1,64 +0,0 @@
-RustPython
-==============
-
-A Python interpreter written in Rust
-
-# Installation
-
-```
-bash init_env.sh
-```
-
-# Run
-
-```
-./test.sh <path/to/file.py> # compile and run
-./test.sh <path/to/file.py> --bytecode # print the bytecode in JSON
-./test.sh <path/to/file.py> --dis # Run python -m dis
-```
-
-## Manual
-Given a python file `test.py`
-
-```
-python compile_code.py test.py > test.bytecode
-
-cd RustPython
-cargo run ../test.bytecode 
-```
-
-# Testing & debugging
-
-```
-./test_all.sh # Run all tests under tests/
-```
-
-* If a test is expected to fail or raise exception, add `xfail_*` prefix to the filename.
-
-## Logging
-
-```
-RUST_LOG=debug ./tests_all.sh
-```
-
-# TODOs
-* Native types => Partial
-* Control flow => if(v)
-* assert => OK
-* Structural types (list, tuple, object)
-* Strings
-* Function calls => Blocked by bytecode serializer
-* Modules import
-* Generators
-
-
-# Goals
-* Support all builtin functions
-* Runs the [pybenchmark](https://pybenchmarks.org/) benchmark test
-* Run famous/popular python modules (which?)
-
-* Compatible with CPython 3.6
-
-# Rust version
-rustc 1.20.0-nightly
-