Pymongo Regex $alle flere søgetermer

Du bygger en streng i din for-løkke, ikke en liste over re.compile genstande. Du ønsker:

collected_x = []                            # Initialize an empty list

for x in input:                             # Iterate over input
  collected_x.append(re.compile(x))         # Append re.compile object to list

collected_x_cut = collected_x[:-2]          # Slice the list outside the loop

cursor = db.collection.find({"key": {"$all": collected_x_cut}})

En simpel tilgang ville være at bruge map for at bygge listen:

collected = map(re.compile, input)[:-2]
db.collection.find({"key": {"$all": collected}})

Eller en list comprehension :

collected = [re.compile(x) for x in input][:-2]
db.collection.find({"key": {"$all": collected}})