only keep few key value from dict
>>> dict_filter = lambda x, y: dict([ (i,x[i]) for i in x if i in set(y) ])
>>> large_dict = {"a":1,"b":2,"c":3,"d":4}
>>> new_dict_keys = ("c","d")
>>> small_dict=dict_filter(large_dict, new_dict_keys)
>>> print(small_dict)
{'c': 3, 'd': 4}
>>>python filter a dictionary
d = dict(a=1, b=2, c=3, d=4, e=5)
print(d)
d1 = {x: d[x] for x in d.keys() if x not in ['a', 'b']}
print(d1)filter dict by list of keys python
dict_you_want = { your_key: old_dict[your_key] for your_key in your_keys }filter dict
{k: v for k, v in points.items() if v[0] < 5 and v[1] < 5}filter dict with certain keys
def only(object,keys):
obj = {}
for path in keys:
paths = path.split(".")
rec=''
origin = object
target = obj
for key in paths:
rec += key
if key in target:
target = target[key]
origin = origin[key]
rec += '.'
continue
if key in origin:
if rec == path:
target[key] = origin[key]
else:
target[key] = {}
target = target[key]
origin = origin[key]
rec += '.'
else:
target[key] = None
break
return objCopyright © 2021 Codeinu
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