mysql-python 坑

# coding: utf8
 
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy import Column, Integer, String, Sequence, SmallInteger

 
Base = declarative_base()
engine = create_engine(
    'mysql+mysqldb://root@127.0.0.1/user_api?charset=utf8',
    echo=False,
)
Session = sessionmaker(bind=engine)
session = Session()
 
class UserAvatar(Base):
 
    __tablename__ = "user_avatar1"
 
    id = Column(Integer, primary_key=True, autoincrement=True)
    uid = Column(Integer,)
Base.metadata.create_all(bind=engine)
 
aaa = UserAvatar(uid=u"测试")                                                                                                             
session.add(aaa)
session.commit()


Traceback (most recent call last):
  File "test.py", line 30, in <module>
    session.commit()
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 801, in commit
    self.transaction.commit()
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 392, in commit
    self._prepare_impl()
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 372, in _prepare_impl
    self.session.flush()
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2015, in flush
    self._flush(objects)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2133, in _flush
    transaction.rollback(_capture_exception=True)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py", line 60, in __exit__
    compat.reraise(exc_type, exc_value, exc_tb)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2097, in _flush
    flush_context.execute()
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py", line 373, in execute
    rec.execute(self)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py", line 532, in execute
    uow
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 174, in save_obj
    mapper, table, insert)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 785, in _emit_insert_statements
    execute(statement, params)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 914, in execute
    return meth(self, multiparams, params)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/sql/elements.py", line 323, in _execute_on_connection
    return connection._execute_clauseelement(self, multiparams, params)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1010, in _execute_clauseelement
    compiled_sql, distilled_params
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1146, in _execute_context
    context)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1344, in _handle_dbapi_exception
    util.reraise(*exc_info)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1139, in _execute_context
    context)
  File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 450, in do_execute
    cursor.execute(statement, parameters)
  File "/usr/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 207, in execute
    if not self._defer_warnings: self._warning_check()
  File "/usr/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 117, in _warning_check
    warn(w[-1], self.Warning, 3)
  File "/usr/local/lib/python2.7/warnings.py", line 33, in _show_warning
    file.write(formatwarning(message, category, filename, lineno, line))
  File "/usr/local/lib/python2.7/warnings.py", line 42, in formatwarning
    s =  "%s:%s: %s: %s\n" % (filename, lineno, category.__name__, message)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 26-27: ordinal not in range(128)