Error in search_lib

[950vasant]

C:\Users\vasan\openDiagram\physchem\python>python search_lib.py
running search main
DEMO
usage: search_lib.py [-h] [--dict [DICT ...]] [--sect [SECT ...]] [--proj [PROJ ...]] [--patt PATT [PATT ...]]

Search sections with dictionaries and patterns

optional arguments:
  -h, --help            show this help message and exit
  --dict [DICT ...]     dictionaries to search with (lookup table from JSON (NYI); empty gives list
  --sect [SECT ...]     sections to search; empty gives all (Not yet tested
  --proj [PROJ ...]     projects to search; empty will give list
  --patt PATT [PATT ...]
                        patterns to search with; regex may need quoting
None
finished search