python - Deleting multiple items in a dict -


i've searched around error gives me, don't understand quite well. did for k, v in dbdata.items, didn't work me neither, gives me other errors.

well, want delete multiple items.

tskinspath = ['1', '2']     # dbdata = {} dbdata['test'] = {} dbdata['test']['skins_t'] = {}  # adds items dbdata['test']['skins_t']['1'] = 1 dbdata['test']['skins_t']['2'] = 0 dbdata['test']['skins_t']['3'] = 0 dbdata['test']['skins_t']['4'] = 0  # doesn't work item in dbdata["test"]["skins_t"]:       if item not in tskinspath:          if dbdata["test"]["skins_t"][item] == 0:                      del dbdata["test"]["skins_t"][item]  # exceptions.runetimeerror: dictonary changed size during iteration

instead of iterating on dictionary, iterate on dict.items():

for key, value in dbdata["test"]["skins_t"].items():      if key not in tskinspath:         if value == 0:             del dbdata["test"]["skins_t"][key]

on py3.x use list(dbdata["test"]["skins_t"].items()).

alternative:

to_be_deleted = [] key, value in dbdata["test"]["skins_t"].iteritems():      if key not in tskinspath:         if value == 0:             to_be_deleted.append(key) k in to_be_deleted:      del dbdata["test"]["skins_t"][k]

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