$ grep -REn "len\([^)]*\)\*2"
impacket/dcerpc/v5/samr.py:2838:        samUser['Buffer'] = b'A'*(512-len(newPassword)*2) + newPassword.encode('utf-16le')
impacket/dcerpc/v5/samr.py:2841:        samUser['Buffer'] = b'A'*(512-len(newPassword)*2) + newPassword.decode(sys.getfilesystemencoding()).encode('utf-16le')
impacket/dcerpc/v5/samr.py:2843:    samUser['Length'] = len(newPassword)*2
impacket/dcerpc/v5/dcom/oaut.py:276:            self['cBytes'] = len(value)*2
impacket/dcerpc/v5/dtypes.py:384:            self['Length'] = len(value)*2
impacket/dcerpc/v5/dtypes.py:385:            self['MaximumLength'] = len(value)*2
impacket/examples/ntlmrelayx/utils/shadow_credentials.py:108:    return "B:%d:%s:%s" % (len(binaryData)*2,hexdata,owner)
impacket/smb.py:927:        ('FileNameLength','<L-FileName','len(FileName)*2'),
impacket/smb.py:956:        ('FileNameLength','<L-FileName','len(FileName)*2'),
impacket/smb.py:987:        ('FileNameLength','<L-FileName','len(FileName)*2'),
impacket/smb.py:1015:        ('FileNameLength','<L-FileName','len(FileName)*2'),
impacket/smb.py:1030:        ('FileNameLength','<L-FileName','len(FileName)*2'),
impacket/smb.py:1053:        ('FileNameLength','<L-FileName','len(FileName)*2'),
impacket/smb.py:1077:        ('FileNameLength','<B-FileName','len(FileName)*2'),
examples/karmaSMB.py:389:        ntCreateRequest['NameLength'] = len(targetFile)*2
tests/dcerpc/test_samr.py:326:        #entry.fields['MaximumLength'] = len('Administrator\x00')*2
tests/dcerpc/test_samr.py:2288:        samUser['Buffer'] = b'A'*(512-len(newPwd)*2) + newPwd.encode('utf-16le')
tests/dcerpc/test_samr.py:2289:        samUser['Length'] = len(newPwd)*2
tests/dcerpc/test_scmr.py:127:           self.assertEqual(arrayData[offset:][:len(changeDone)*2].decode('utf-16le'), changeDone)
tests/dcerpc/test_rrp.py:216:        request['cbData'] = len(self.test_value_data)*2
tests/misc/test_structure.py:81:            ('code1', '>L=len(arr1)*2+0x1000'),
tests/misc/test_structure.py:191:            ('leni', '<L=len(uno)*2'),