Follow symbolic link when returning path to library to reduce likelihood of context creation when determining CUBLAS version (#302).

Author: lebedov

skcuda/cublas.py

@@ -264,12 +264,12 @@ def _get_cublas_version():
     Results
     -------
     version : str
-        Zeros are appended to match format of version returned 
+        Zeros are appended to match format of version returned
         by cublasGetVersion() (e.g., '6050' corresponds to version 6.5).
 
     Notes
     -----
-    Since the version number does not appear to be obtainable from the 
+    Since the version number does not appear to be obtainable from the
     MacOSX CUBLAS library, this function must call cublasGetVersion() on
     MacOSX (but raises a warning to let the user know).
     """

skcuda/utils.py

@@ -128,9 +128,9 @@ def find_lib_path(name):
     """
     Find full path of a shared library.
 
-    Searches for the full path of a shared library. On Posix operating systems 
-    other than MacOS, this function checks the directories listed in 
-    LD_LIBRARY_PATH (if any) and in the ld.so cache. 
+    Searches for the full path of a shared library. On Posix operating systems
+    other than MacOS, this function checks the directories listed in
+    LD_LIBRARY_PATH (if any) and in the ld.so cache.
 
     Parameter
     ---------
@@ -204,4 +204,6 @@ def find_lib_path(name):
     res = re.search(expr, data)
     if not res:
         return None
-    return res.group(1)
+
+    # Follow symbolic links to the actual file:
+    return os.path.realpath(res.group(1))