force newer sqlalchemy version

[panakouris]

Hello. On my end I had installed the sqlalchemy==1.2.13 and when trying to get the driver I encountered the following issue

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-3-7c18fb67ea67> in <module>
     12 
     13     insertables = INDEX_INSERTABLES(renamed_cogs, TC_BUCKET_NAME)
---> 14     driver = tc.get_driver(str(DB_PATH))
     15     #insertables = SKIP_EXISTING_DATASETS(insertables, driver)
     16     insertables = COMPUTE_METADATA(insertables, driver)

~/.conda/envs/py3/lib/python3.6/site-packages/terracotta/drivers/__init__.py in get_driver(url_or_path, provider)
     99 
    100     DriverClass = load_driver(provider)
--> 101     normalized_path = DriverClass._normalize_path(url_or_path)
    102     cache_key = (normalized_path, provider, os.getpid())
    103 

~/.conda/envs/py3/lib/python3.6/site-packages/terracotta/drivers/mysql_meta_store.py in _normalize_path(cls, path)
     61     @classmethod
     62     def _normalize_path(cls, path: str) -> str:
---> 63         url = cls._parse_path(path)
     64 
     65         path = f'{url.drivername}://{url.host}:{url.port or cls.DEFAULT_PORT}/{url.database}'

~/.conda/envs/py3/lib/python3.6/site-packages/terracotta/drivers/relational_meta_store.py in _parse_path(cls, connection_string)
    115             raise ValueError(f'unsupported URL scheme "{con_params.scheme}"')
    116 
--> 117         url = URL.create(
    118             drivername=f'{cls.SQL_DIALECT}+{cls.SQL_DRIVER}',
    119             username=con_params.username,

AttributeError: type object 'URL' has no attribute 'create'

After updating sqlalchemy to the latest version (1.4.35) the issue was solved.

[dionhaefner]

Contributions welcome :)