[BioPython] Entrez

[binbin]

Hei,
        Am using biopython 1.45
        
        my problem is as follow
        
        
        >>> from Bio import GenBank
        >>> from Bio import Entrez
        Traceback (most recent call last):
          File "<stdin>", line 1, in <module>
        ImportError: cannot import name Entrez
        
        I could not import Entrez. was it deleted from Bio?