EDFTomoScan: bugfix for weird projections names

tomoscan/esrf/edfscan.py

@@ -320,8 +320,7 @@ class EDFTomoScan(TomoScanBase):
         def extract_index(my_str, type_):
             res = []
             modified_str = copy.copy(my_str)
-
-            while modified_str[-1].isdigit():
+            while modified_str != "" and modified_str[-1].isdigit():
                 res.append(modified_str[-1])
                 modified_str = modified_str[:-1]
             if len(res) == 0:
@@ -332,7 +331,7 @@ class EDFTomoScan(TomoScanBase):
                     return int(''.join(orignalOrder)), modified_str
                 else:
                     return float('.'.join(('0', ''.join(orignalOrder)))), modified_str
-
+        _file = os.path.basename(_file)
         if _file.endswith('.edf'):
             name = _file.replace(basename, '', 1)
             name = name.rstrip('.edf')