fix issue with importlib.resources not working on python 3.8

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## 2.2.3
 
  - Feature: Adding support for 64 bit floating point operations
+ - BugFix: Fix a bug where `-o libc` would fail with packaged versions of riscemu
  - BugFix: Fix `__all__` to now properly work (use name strings instead of values)
 
 ## 2.2.2

riscemu/riscemu_main.py

@@ -3,7 +3,7 @@
 from dataclasses import dataclass
 from io import IOBase, RawIOBase, TextIOBase
 from typing import Type, Dict, List, Optional, Union
-import importlib.resources
+import importlib_resources
 
 from . import __version__, __copyright__
 from .core import CPU, ProgramLoader, Program, UserModeCPU
@@ -206,7 +206,7 @@ def add_libc_to_input_files(self):
         """
         This adds the provided riscemu libc to the programs runtime.
         """
-        for file in importlib.resources.files("riscemu.libc").iterdir():
+        for file in importlib_resources.files("riscemu.libc").iterdir():
             if file.name.lower().endswith(".s"):
                 source = RiscemuSource(file.name, file.open("r"))
                 self.input_files.append(source)