`check_credentials(write=True)` fails when credential only has the write permission.

[FledgeXu]

As I mentioned earlier, When credential only has the write permission, the check_credentials(write=True) will fail.

Repeat code:

from kiwixstorage import KiwixStorage
# This key only has write permission
a = KiwixStorage("YOUR KEY")
a.check_credentials(write=True)

The reasons is we accidentally call the delete_obejct in test_access_write

python-storagelib/src/kiwixstorage/__init__.py

Lines 307 to 308 in ddf1662

	finally:
	self.client.delete_object(Bucket=self.bucket_name, Key=key)

[rgaudin]

Thanks

[rgaudin]

check_credentials will also raise exceptions on malformed URL. This should be captured and logged.