Python3 writerow函数TypeError: a bytes-like object is required, not 'str'

with open(path, 'wb') as csv_file:
        csv_write = csv.writer(csv_file)
        csv_head = ["A", "B"]    
        csv_write.writerow(csv_head)

运行错误提示：
TypeError: a bytes-like object is required, not ‘str’

Python 3. csv采用文本模式输入，不是二进制模式，不能用wb
解决方案：

with open(path, 'w') as csv_file:	
		csv_write = csv.writer(csv_file)
        csv_head = ["A", "B"]    
        csv_write.writerow(csv_head)