cx_oracle 执行cur.execute(sql)提交数据出现 UnicodeEncodeError: 'ascii' codec can't encode character u'\u2122' in position 170

还是中文字符的问题，

解决方法见链接：http://www.oracle.com/technetwork/articles/tuininga-cx-oracle-084866.html

import os 

os.environ["NLS_LANG"] = ".AL32UTF8"