Remove SAGE_DB

Author: tobiasdiez

src/sage/graphs/isgci.py

@@ -857,8 +857,7 @@ def update_db(self):
         Depending on the credentials of the user running Sage when this command
         is run, one attempt is made at saving the result in Sage's directory so
         that all users can benefit from it. If the credentials are not
-        sufficient, the XML file are saved instead in the user's directory (in
-        the SAGE_DB folder).
+        sufficient, the XML file are saved instead in the user's directory.
 
         EXAMPLES::
 

src/sage/misc/all.py

@@ -9,8 +9,7 @@
                   exists, forall, is_iterator,
                   random_sublist,
                   pad_zeros,
-                  SAGE_DB,
-                   newton_method_sizes, compose,
+                  newton_method_sizes, compose,
                   nest)
 
 from sage.misc.banner import version

src/sage/misc/all__sagemath_objects.py

@@ -20,7 +20,7 @@
 
 from sage.misc.flatten import flatten
 
-from sage.misc.persist import save, load, dumps, loads, db, db_save
+from sage.misc.persist import save, load, dumps, loads
 
 from sage.misc.constant_function import ConstantFunction
 

src/sage/misc/misc.py

@@ -168,17 +168,12 @@ def try_read(obj, splitlines=False):
 
     return data
 
-
-SAGE_DB = os.path.join(DOT_SAGE, 'db')
-os.makedirs(SAGE_DB, exist_ok=True)
-
 try:
     # Create the matplotlib config directory.
     os.makedirs(os.environ["MPLCONFIGDIR"], exist_ok=True)
 except KeyError:
     pass
 
-
 def exactly_one_is_true(iterable):
     r"""
     Return whether exactly one element of ``iterable`` evaluates ``True``.

src/sage/misc/persist.pyx

@@ -1222,27 +1222,3 @@ def load_sage_element(cls, parent, dic_pic):
     X._set_parent(parent)
     X.__dict__ = SageUnpickler.loads(dic_pic)
     return X
-
-
-def db(name):
-    r"""
-    Load object with given name from the Sage database. Use x.db(name)
-    or db_save(x, name) to save objects to the database.
-
-    The database directory is ``$HOME/.sage/db``.
-    """
-    from sage.misc.misc import SAGE_DB
-    return load('%s/%s' % (SAGE_DB, name))
-
-
-def db_save(x, name=None):
-    r"""
-    Save x to the Sage database.
-
-    The database directory is ``$HOME/.sage/db``.
-    """
-    try:
-        x.db(name)
-    except AttributeError:
-        from sage.misc.misc import SAGE_DB
-        save(x, '%s/%s' % (SAGE_DB, name))