HashSalmon opened a new issue #16353:
URL: https://github.com/apache/airflow/issues/16353
**Apache Airflow version**: Airflow 2.0.2
**Environment**:
- **Cloud provider or hardware configuration**: AWS
- **OS** (e.g. from /etc/os-release): Linux
- **Kernel** (e.g. `uname -a`): 3.10.0-1062.12.1.el7.x86_64
- **Install tools**: rh-python36
- **Others**:
**What happened**:
There is a full width comma in the DAG's pydoc block. It works ok in airflow
1.10.10. After upgrading to airflow 2.0.2, it causes an exception. The
exception shows in the scheduler's log as follow:
` c = cached_connections[connection].execute(statement, multiparams)
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1011, in execute
return meth(self, multiparams, params)
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/sql/elements.py",
line 298, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1130, in _execute_clauseelement
distilled_params,
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1317, in _execute_context
e, statement, parameters, cursor, context
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1514, in _handle_dbapi_exception
util.raise_(exc_info[1], with_traceback=exc_info[2])
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/util/compat.py",
line 182, in raise_
raise exception
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/engine/base.py",
line 1277, in _execute_context
cursor, statement, parameters, context
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/sqlalchemy/engine/default.py",
line 608, in do_execute
cursor.execute(statement, parameters)
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/MySQLdb/cursors.py",
line 239, in execute
args = tuple(map(db.literal, args))
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/MySQLdb/connections.py",
line 321, in literal
s = self.escape(o, self.encoders)
File
"/opt/rh/rh-python36/root/usr/lib64/python3.6/site-packages/MySQLdb/connections.py",
line 229, in unicode_literal
return db.string_literal(str(u).encode(db.encoding))
UnicodeEncodeError 'latin-1' codec can't encode character '\uff0c' in
position 3234 ordinal not in range(256)`
**What you expected to happen**:
The DAG should be imported like airflow 1.10.10 without any issues.
**How to reproduce it**:
If you have a DAG and let's say in the DAG file. There is a python doc
comments like this:
`
"""
this is a test python doc comment，this comma will cause the exception
"""
`
**Anything else we need to know**:
The backend metadb is mysql. The encoding of table and database is utf8mb4
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