How to fix Python ValueError:bad marshal data?

Question

Running flexget Python script in Ubuntu, I get an error:

$ flexget series forget \"Orange is the new black\" s03e01
Traceback (most recent call last):
File \         


        

Answer 1

Just delete

/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/properties.pyc

it is corrupt as the text indicates. You'll probably have to do so as root.

After that start (again as root) run python (2.7):

/usr/bin/python -c "import sqlalchemy.orm.properties"

to recreate this .pyc file.

If you don't recreate the .pyc file, your program starts slower than necessary as the .py file takes longer to load than the .pyc (and a normal user cannot write the .pyc file).