adding basic example with python to close #1

Signed-off-by: vsoch <vsoch@users.noreply.github.com>

README.md

@@ -144,8 +144,6 @@ For more detailed examples, see:
 
 ## TODO
 
-- write asp example
 - looking into clingo for go
-- write python example
 - write abi example
 - write out actual full spec

python/README.md

@@ -0,0 +1,114 @@
+# Python Changes
+
+Now that we've seen a simple example using [asp](../asp) it might make sense
+to try to extend this example to Python, and reading binary dwarf. We will
+use [this repository](https://github.com/buildsi/build-abi-test-mathclient) that has two versions of a 
+library to build - a math client with the same namespace  / class / functions
+but parameter type changes.
+
+## Setup
+
+Let's clone the different versions and build them!
+
+```bash
+git clone https://github.com/buildsi/build-abi-test-mathclient
+cd build-abi-test-mathclient
+git fetch
+```
+Build version 2.0
+
+```bash
+make
+cp libmath.so ../libmath.v2.so
+```
+
+And version 1!
+
+```bash
+git checkout 1.0.0
+make
+cp libmath.so ../libmath.v1.so
+```
+
+These libraries will be required for the example, so make sure you have them!
+
+## Usage
+
+First, prepare your environment. You will need to install clingo (or the Python wrapper to it).
+
+```bash
+$ python -m venv env
+$ source env/bin/activate
+$ pip install -r requirements.txt
+```
+
+And then run the example!
+
+```bash
+$ python example.py
+```
+```bash
+$ python example.py 
+{
+    "is_a": [
+        [
+            "A"
+        ]
+    ],
+    "is_b": [
+        [
+            "B"
+        ]
+    ],
+    "is_different": [
+        [
+            "A",
+            "B"
+        ]
+    ],
+    "removed_node": [
+        [
+            "A",
+            "B",
+            "function",
+            "_ZN11MathLibrary10Arithmetic3AddEii"
+        ],
+        [
+            "A",
+            "B",
+            "type",
+            "int"
+        ],
+        [
+            "A",
+            "B",
+            "basetype",
+            "int"
+        ],
+        [
+            "A",
+            "B",
+            "size",
+            "4"
+        ],
+        [
+            "A",
+            "B",
+            "location",
+            "framebase-20"
+        ]
+    ],
+    "added_node": [
+        [
+            "A",
+            "B",
+            "function",
+            "_ZN11MathLibrary10Arithmetic3AddEdd"
+        ]
+    ]
+}
+```
+
+Note that the scripts here can be integrated into a module proper if this
+idea makes sense. The current example is very simple, and I'll need to parse more complex
+ones (e.g., with more DWARF DIE tag types) to finish it up.