fix version

Author: theblackcat102

setup.py

@@ -78,7 +78,7 @@ def find_libxml2_include():
 
 __version__ = re.search(
     r'__version__\s*=\s*[\'"]([^\'"]*)[\'"]',  # It excludes inline comment too
-    io.open('main_package/__init__.py', encoding='utf_8_sig').read()
+    io.open('extractnet/__init__.py', encoding='utf_8_sig').read()
     ).group(1)
 
 setup(