fix: rename some functions to be Pythonic

Author: fjebaker

test/test_basics.py

@@ -4,7 +4,7 @@
 
 
 def test_powerlaw():
-    lib = xspectrampoline.get_libXSPEC()
+    lib = xspectrampoline.get_libraries()
     powerlaw = lib.get_model("C_powerlaw")
 
     energy = np.linspace(0.01, 10.0, 100, dtype=np.float64)

xspectrampoline/__init__.py

@@ -140,18 +140,18 @@ def get_model(self, symbol: str, interface: Optional[str] = None) -> callable:
 lib_XSFunctions.FNINIT()
 
 
-def get_libXSPEC() -> LibXSPEC:
+def get_libraries() -> LibXSPEC:
     """
     Get a handle to all of the XSPEC libraries.
     """
     return LibXSPEC(lib_XS, lib_XSFunctions, lib_XSUtil)
 
 
-def getHEADAS() -> str:
+def get_HEADAS() -> str:
     """
     Returns the HEADAS path currently used by the library.
     """
     return str(__headas_path)
 
 
-__all__ = [getHEADAS]
+__all__ = [get_HEADAS, get_libraries]