fixing python version. allowing versions to execute even if no detector connected or in shared memory (#990)

python/slsdet/__init__.py

@@ -27,4 +27,14 @@ MacAddr = _slsdet.MacAddr
 scanParameters = _slsdet.scanParameters
 currentSrcParameters = _slsdet.currentSrcParameters
 DurationWrapper = _slsdet.DurationWrapper
-pedestalParameters = _slsdet.pedestalParameters
+pedestalParameters = _slsdet.pedestalParameters
+
+
+import subprocess
+def get_git_tag():
+    try:
+        return subprocess.check_output(['git', 'describe', '--tags', '--abbrev=0']).strip().decode('utf-8')
+    except subprocess.CalledProcessError:
+        return 'developer'
+__version__ = get_git_tag()
+