pgAdmin 4 commit: Further Python 2.6 fixes.

Further Python 2.6 fixes.

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=ba8829b64ff6c75aebd823743e8833ab0b531a4f
Author: Khushboo Vashi <khushboo.vashi@enterprisedb.com>

Modified Files
--------------
web/pgadmin/misc/bgprocess/processes.py                    | 14 ++++++++++++--
web/pgadmin/tools/backup/tests/test_batch_process.py       |  5 ++++-
.../maintenance/tests/test_batch_process_maintenance.py    |  5 ++++-
web/pgadmin/tools/restore/tests/test_batch_process.py      |  5 ++++-
4 files changed, 24 insertions(+), 5 deletions(-)