add lookup of relative paths for import hooks, related to #33

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "delta-barth"
-version = "0.5.10"
+version = "0.5.11rc2"
 description = "workflows and pipelines for the Python-based Plugin of Delta Barth's ERP system"
 authors = [
     {name = "Florian Förster", email = "f.foerster@d-opt.com"},
@@ -74,7 +74,7 @@ directory = "reports/coverage"
 
 
 [tool.bumpversion]
-current_version = "0.5.10"
+current_version = "0.5.11rc2"
 parse = """(?x)
     (?P<major>0|[1-9]\\d*)\\.
     (?P<minor>0|[1-9]\\d*)\\.

src/delta_barth/_debug.py

@@ -0,0 +1,22 @@
+import importlib.util
+import os
+import sys
+
+
+def print_infos() -> str:
+    PATH = os.environ.get("PATH", "")
+    PY_HOME = os.environ.get("PYTHONHOME", "")
+    PY_PATH = os.environ.get("PYTHONPATH", "")
+    SYS_PATH = sys.path
+
+    out = ""
+    out += f"\n>>> PATH is:\n{PATH}"
+    out += f"\n>>> PYTHONHOME is:\n{PY_HOME}"
+    out += f"\n>>> PYTHONPATH is:\n{PY_PATH}"
+    out += f"\n>>> Internal sys.path is:\n{SYS_PATH}"
+    found_spec = importlib.util.find_spec("numpy")
+    out += f"\n>>> Found spec for 'numpy' is:\n{found_spec}"
+
+    print(out)
+
+    return out

tests/test_debug.py

@@ -0,0 +1,5 @@
+from delta_barth import _debug as debug
+
+
+def test_print_info():
+    debug.print_infos()