fix package structure and setup.py to include subpackage

Author: tintinweb

setup.py

@@ -11,7 +11,7 @@
 
 '''
 import os
-from setuptools import setup
+from setuptools import setup, find_packages
 
 
 def read(fname):
@@ -24,7 +24,7 @@ def read(fname):
 setup(
     name=name,
     version=version,
-    packages=[name.replace("-","_")],
+    packages=find_packages(),
     author="tintinweb",
     author_email="tintinweb@oststrom.com",
     description=(

solidity_parser/__init__.py

@@ -0,0 +1,2 @@
+from .parser import parse_file, parse
+__ALL__ = ["parse","parse_file"]

solidity_parser/parser.py

@@ -7,9 +7,9 @@
 
 
 from antlr4 import *
-from solidity_antlr4.SolidityLexer import SolidityLexer
-from solidity_antlr4.SolidityParser import SolidityParser
-from solidity_antlr4.SolidityVisitor import SolidityVisitor
+from solidity_parser.solidity_antlr4.SolidityLexer import SolidityLexer
+from solidity_parser.solidity_antlr4.SolidityParser import SolidityParser
+from solidity_parser.solidity_antlr4.SolidityVisitor import SolidityVisitor
 
 
 class Node(dict):
@@ -1003,9 +1003,6 @@ def parse(text, start="sourceUnit", loc=False, strict=False):
     from antlr4.InputStream import InputStream
     from antlr4 import FileStream, CommonTokenStream
 
-    from solidity_antlr4.SolidityLexer import SolidityLexer
-    from solidity_antlr4.SolidityParser import SolidityParser
-
     input_stream = InputStream(text)
 
     lexer = SolidityLexer(input_stream)