find all unique items in dictionary value python
L = [{"V":"S001"}, {"V": "S002"}, {"VI": "S001"}, {"VI": "S005"}, {"VII":"S005"}, {"V":"S009"},{"VIII":"S007"}]
print("Original List: ",L)
u_value = set( val for dic in L for val in dic.values())
print("Unique Values: ",u_value)return position of a unique value in python array
In [304]: array = np.array([1, 1, 2, 3, 2, 1, 2, 3])
In [305]: np.unique(array) # unique values in `array`
Out[305]: array([1, 2, 3])
In [306]: array == 1 # retrieve a boolean mask where elements are equal to 1
Out[306]: array([ True, True, False, False, False, True, False, False])
In [307]: (array == 1).nonzero()[0] # get the `True` indices for the operation above
Out[307]: array([0, 1, 5])Copyright © 2021 Codeinu
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