Replace getargspec with getfullargspec

getargspec() is deprecated since py3

[1] https://docs.python.org/3/library/inspect.html#inspect.getargspec

Change-Id: Ie1513f9b4911e54ce6714074eb2dc4052323ef42

2 files changed, 2 insertions, 22 deletions

diff --git a/oslo_db/sqlalchemy/enginefacade.py b/oslo_db/sqlalchemy/enginefacade.py
index 6a13c70..1373d82 100644
--- a/oslo_db/sqlalchemy/enginefacade.py
+++ b/oslo_db/sqlalchemy/enginefacade.py
@@ -12,6 +12,7 @@
 
 import contextlib
 import functools
+import inspect
 import operator
 import threading
 import warnings
@@ -26,7 +27,6 @@ from oslo_db import exception
 from oslo_db import options
 from oslo_db.sqlalchemy import engines
 from oslo_db.sqlalchemy import orm
-from oslo_db.sqlalchemy import utils
 from oslo_db import warning
 
 
@@ -997,7 +997,7 @@ class _TransactionContextManager(object):
 
     def __call__(self, fn):
         """Decorate a function."""
-        argspec = utils.getargspec(fn)
+        argspec = inspect.getfullargspec(fn)
         if argspec.args[0] == 'self' or argspec.args[0] == 'cls':
             context_index = 1
         else:
diff --git a/oslo_db/sqlalchemy/utils.py b/oslo_db/sqlalchemy/utils.py
index d1499f0..2babb18 100644
--- a/oslo_db/sqlalchemy/utils.py
+++ b/oslo_db/sqlalchemy/utils.py
@@ -19,7 +19,6 @@
 import collections
 from collections import abc
 import contextlib
-import inspect as pyinspect
 import itertools
 import logging
 import re
@@ -1184,25 +1183,6 @@ def suspend_fk_constraints_for_col_alter(
                 )
 
 
-def getargspec(fn):
-    """Inspects a function for its argspec.
-
-    This is to handle a difference between py2/3. The Python 2.x getargspec
-    call is deprecated in Python 3.x, with the suggestion to use the signature
-    call instead.
-
-    To keep compatibility with the results, while avoiding deprecation
-    warnings, this instead will use the getfullargspec instead.
-
-    :param fn: The function to inspect.
-    :returns: The argspec for the function.
-    """
-    if hasattr(pyinspect, 'getfullargspec'):
-        return pyinspect.getfullargspec(fn)
-
-    return pyinspect.getargspec(fn)
-
-
 class NonCommittingConnectable(object):
     """A ``Connectable`` substitute which rolls all operations back.