일단 커밋. 오랫동안 커밋을 안해서 꼬였다.

리팩토리 중.

.venv/lib/python3.12/site-packages/pyproj/base.pxi

@@ -0,0 +1,39 @@
+from cpython.ref cimport PyObject
+
+from math import degrees, radians
+
+
+cdef double _DG2RAD = radians(1.)
+cdef double _RAD2DG = degrees(1.)
+cdef int _DOUBLESIZE = sizeof(double)
+
+
+cdef extern from "math.h" nogil:
+    ctypedef enum:
+        HUGE_VAL
+
+
+cdef extern from "Python.h":
+    ctypedef enum:
+        PyBUF_WRITABLE
+    int PyObject_GetBuffer(PyObject *exporter, Py_buffer *view, int flags)
+    void PyBuffer_Release(Py_buffer *view)
+
+
+cdef class PyBuffWriteManager:
+    cdef Py_buffer buffer
+    cdef double* data
+    cdef public Py_ssize_t len
+
+    def __cinit__(self):
+        self.data = NULL
+
+    def __init__(self, object data):
+        if PyObject_GetBuffer(<PyObject *>data, &self.buffer, PyBUF_WRITABLE) <> 0:
+            raise BufferError("pyproj had a problem getting the buffer from data.")
+        self.data = <double *>self.buffer.buf
+        self.len = self.buffer.len // self.buffer.itemsize
+
+    def __dealloc__(self):
+        PyBuffer_Release(&self.buffer)
+        self.data = NULL