Counterpart to ctypesgen library_sharing branch (#285)

src/pypdfium2/__main__.py

@@ -5,10 +5,17 @@
 import argparse
 import importlib
 from pypdfium2.version import PYPDFIUM_INFO, PDFIUM_INFO
-# the * import in pypdfium2.raw loses underscore-prefixed members, so import from the direct origin
-from pypdfium2_raw.bindings import _loader_info as loader_info
 from pypdfium2._cli._parsers import setup_logging
 
+try:
+    from pypdfium2_raw.bindings import _libs_info
+    pdfium_path = _libs_info["pdfium"]["path"]
+except ImportError:
+    # retained for downward compatibility with conda pypdfium2_raw <= 6164 by date of initial build
+    # actually it's the ctypesgen version that matters, but we don't have info about that
+    from pypdfium2_raw.bindings import _loader_info
+    pdfium_path = _loader_info["libpath"]
+
 SubCommands = {
     "arrange":        "rearrange/merge documents",
     "attachments":    "list/extract/edit embedded files",
@@ -35,7 +42,7 @@ def get_parser():
     main_parser.add_argument(
         "--version", "-v",
         action = "version",
-        version = f"pypdfium2 {PYPDFIUM_INFO}\n" f"pdfium {PDFIUM_INFO} at {loader_info['libpath']}"
+        version = f"pypdfium2 {PYPDFIUM_INFO}\n" f"pdfium {PDFIUM_INFO} at {pdfium_path}"
     )
     subparsers = main_parser.add_subparsers(dest="subcommand")