HAX failed to init if no MONGO_PASSWORD is set

[l-althueser]

The actual HAX version can not be used with use_runs_db = False since the runs_db is used in load_corrections().

Something like this is missing in this function:

if not hax.config.get('use_runs_db', True):
        hax.log.info("Not looking for corrections in db since you put use_runs_db = False")
        return

Full error:

ValueError                                Traceback (most recent call last)
<ipython-input-7-5fbfd0efb0f6> in <module>()
      1 import hax
      2 print("HAX version: " + str(hax.__version__))
----> 3 hax.init(pax_version_policy = 'loose',use_runs_db = False,main_data_paths=main_data_paths,mini_tree_paths=mini_tree_paths)

/home/l-althueser/pax_head/hax-1.9.0/hax/__init__.py in init(filename, **kwargs)
     66 
     67     # Call some inits of the submodules
---> 68     runs.load_corrections()
     69     runs.update_datasets()
     70     minitrees.update_treemakers()

/home/l-althueser/pax_head/hax-1.9.0/hax/runs.py in load_corrections()
    460 
    461     for correction in hax.config['corrections']:
--> 462         db = get_rundb_database()
    463         if correction not in db.collection_names():
    464             log.warning("Config asked for %s correction but didn't find in DB" % correction)

/home/l-althueser/pax_head/hax-1.9.0/hax/runs.py in get_rundb_database()
     43     if rundb_client is None:
     44         # Connect to the runs database
---> 45         rundb_client = pymongo.MongoClient(hax.config['runs_url'].format(password=get_rundb_password()))
     46     return(rundb_client[hax.config['runs_database']])
     47 

/home/l-althueser/pax_head/hax-1.9.0/hax/runs.py in get_rundb_password()
     34         return os.environ['MONGO_PASSWORD']
     35     else:
---> 36         raise ValueError('Please set the MONGO_PASSWORD environment variable or the hax.mongo_password option '
     37                          'to access the runs database.')
     38 

ValueError: Please set the MONGO_PASSWORD environment variable or the hax.mongo_password option to access the runs database.