Hi, during yoyo initialization using cx_oracle drivers we had the below issue:

<<<<>>>>/lib/python3.7/site-packages/yoyo/backends/base.py", line 388, in execute cursor.execute(sql, params) TypeError: expecting a dictionary, sequence or keyword args

when executing the following statement:

CREATE TABLE "yoyo_lock" (locked INT DEFAULT 1, ctime TIMESTAMP,pid INT NOT NULL,PRIMARY KEY (locked))

I've a look to the sources and I suppose that the fix can be placed in yoyo/utils.py in method def change_param_style(target_style, sql, bind_parameters): assigning a default value to bind_parameters

if target_style == "named": return sql, bind_parameters if bind_parameters else {}