fix: python compile and install

.gitignore

@@ -0,0 +1,4 @@
+build/
+dist/
+*.egg-info/
+ext_src/_project.cpp

setup.py

@@ -2,10 +2,14 @@ from setuptools import setup, Extension
 from Cython.Build import cythonize
 
 extensions = [
-        Extension("sphereproj._project", ["sphereproj/_project.pyx", "sphereproj/project_tool.hpp", "sphereproj/openmp.hpp"])
+    Extension(
+        "sphereproj._project",
+        [
+            "ext_src/_project.pyx",
+        ],
+        language="c++"
+    )
 ]
 
 
-setup(
+setup(py_modules=["sphereproj"],ext_modules=cythonize(extensions))
-    ext_modules = cythonize(extensions)
-)