I updated to Python 3.8 on Arch Linux today and I had the same problem with 
'escape'. I patched the languages.py file and got web2py to start, but then 
hit another error:

Traceback (most recent call last):
  File "/home/www/web2py/gluon/restricted.py", line 219, in restricted
    exec(ccode, environment)
  File "/home/www/web2py/applications/x10_security/models/db.py" 
<https://home.woodring.us/admin/default/edit/x10_security/models/db.py>, line 
55, in <module>
    auth.define_tables(username=False, signature=False)
  File "/home/www/web2py/gluon/tools.py", line 2092, in define_tables
    super(Auth, self).define_tables(username, signature, migrate, 
fake_migrate)._table_signature_list
  File "/home/www/web2py/gluon/authapi.py", line 322, in define_tables
    db.define_table(
  File "/home/www/web2py/gluon/packages/dal/pydal/base.py", line 592, in 
define_table
    table = self.lazy_define_table(tablename, *fields, **kwargs)
  File "/home/www/web2py/gluon/packages/dal/pydal/base.py", line 623, in 
lazy_define_table
    self._adapter.create_table(
  File "/home/www/web2py/gluon/packages/dal/pydal/adapters/base.py", line 798, 
in create_table
    return self.migrator.create_table(*args, **kwargs)
  File "/home/www/web2py/gluon/packages/dal/pydal/migrator.py", line 299, in 
create_table
    sql_fields_old = pickle.load(tfile)
TypeError: file must have 'read', 'readinto' and 'readline' attributes


I looked for a discussion or patch for this, but I didn't find one. Can 
anybody tell me how to fix this?

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