X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/727c1e475afcb1a8fda1f9b689bb3e941ae93cec..0561bd0c3c07257fd58ded6c7cfa5feeae97af57:/sdk/python/arvados/api.py

diff --git a/sdk/python/arvados/api.py b/sdk/python/arvados/api.py
index d1263e24f2..e69f1a112d 100644
--- a/sdk/python/arvados/api.py
+++ b/sdk/python/arvados/api.py
@@ -1,5 +1,13 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+from __future__ import absolute_import
+from future import standard_library
+standard_library.install_aliases()
+from builtins import range
 import collections
-import httplib
+import http.client
 import httplib2
 import json
 import logging
@@ -12,10 +20,10 @@ import types
 import apiclient
 from apiclient import discovery as apiclient_discovery
 from apiclient import errors as apiclient_errors
-import config
-import errors
-import util
-import cache
+from . import config
+from . import errors
+from . import util
+from . import cache
 
 _logger = logging.getLogger('arvados.api')
 
@@ -44,7 +52,7 @@ class OrderedJsonModel(apiclient.model.JsonModel):
         return body
 
 
-def _intercept_http_request(self, uri, **kwargs):
+def _intercept_http_request(self, uri, method="GET", **kwargs):
     if (self.max_request_size and
         kwargs.get('body') and
         self.max_request_size < len(kwargs['body'])):
@@ -58,7 +66,7 @@ def _intercept_http_request(self, uri, **kwargs):
 
     kwargs['headers']['Authorization'] = 'OAuth2 %s' % self.arvados_api_token
 
-    retryable = kwargs.get('method', 'GET') in [
+    retryable = method in [
         'DELETE', 'GET', 'HEAD', 'OPTIONS', 'PUT']
     retry_count = self._retry_count if retryable else 0
 
@@ -67,7 +75,7 @@ def _intercept_http_request(self, uri, **kwargs):
         # High probability of failure due to connection atrophy. Make
         # sure this request [re]opens a new connection by closing and
         # forgetting all cached connections first.
-        for conn in self.connections.itervalues():
+        for conn in self.connections.values():
             conn.close()
         self.connections.clear()
 
@@ -75,8 +83,8 @@ def _intercept_http_request(self, uri, **kwargs):
     for _ in range(retry_count):
         self._last_request_time = time.time()
         try:
-            return self.orig_http_request(uri, **kwargs)
-        except httplib.HTTPException:
+            return self.orig_http_request(uri, method, **kwargs)
+        except http.client.HTTPException:
             _logger.debug("Retrying API request in %d s after HTTP error",
                           delay, exc_info=True)
         except socket.error:
@@ -87,13 +95,13 @@ def _intercept_http_request(self, uri, **kwargs):
             # httplib2 reopens connections when needed.
             _logger.debug("Retrying API request in %d s after socket error",
                           delay, exc_info=True)
-            for conn in self.connections.itervalues():
+            for conn in self.connections.values():
                 conn.close()
         time.sleep(delay)
         delay = delay * self._retry_delay_backoff
 
     self._last_request_time = time.time()
-    return self.orig_http_request(uri, **kwargs)
+    return self.orig_http_request(uri, method, **kwargs)
 
 def _patch_http_request(http, api_token):
     http.arvados_api_token = api_token
@@ -113,6 +121,7 @@ _cast_orig = apiclient_discovery._cast
 def _cast_objects_too(value, schema_type):
     global _cast_orig
     if (type(value) != type('') and
+        type(value) != type(b'') and
         (schema_type == 'object' or schema_type == 'array')):
         return json.dumps(value)
     else:
@@ -136,7 +145,7 @@ def http_cache(data_type):
     try:
         util.mkdir_dash_p(path)
     except OSError:
-        path = None
+        return None
     return cache.SafeHTTPCache(path, max_age=60*60*24*2)
 
 def api(version=None, cache=True, host=None, token=None, insecure=False, **kwargs):