First try to get version from installed package. If packate is not in…

…stalled, try to get it from the git tree

eessi/testsuite/__init__.py

@@ -1,10 +1,14 @@
+from importlib.metadata import version, PackageNotFoundError
 try:
-    from setuptools_scm import get_version
-    # Using a relative path for relative_to doesn't work, because it will be relative to the current working
-    # directory (which could be anywhere)
-    # __file__ is the location of this init file (a full path), and this gives us a predictable path to the root
-    # (namely: two levels up)
-    # Note that if we ever move this __init__ file relative to the root of the git tree, we'll need to adjust this
-    __version__ = get_version(root='../..', relative_to=__file__)
-except ImportError:
-    __version__ = "0.0.0"  # fallback version if setuptools_scm is not available
+    __version__ = version("eessi-testsuite")
+except PackageNotFoundError:
+    try:
+        from setuptools_scm import get_version
+        # Using a relative path for relative_to doesn't work, because it will be relative to the current working
+        # directory (which could be anywhere)
+        # __file__ is the location of this init file (a full path), and this gives us a predictable path to the root
+        # (namely: two levels up)
+        # Note that if we ever move this __init__ file relative to the root of the git tree, we'll need to adjust this
+        __version__ = get_version(root='../..', relative_to=__file__)
+    except ImportError:
+        __version__ = "0.0.0"  # fallback version if setuptools_scm is not available