pgAdmin 4 commit: PEP8 fixes for the tools module.

PEP8 fixes for the tools module.

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=2332630af8c4995c3a3bd99679721050795ab957
Author: Joao Pedro De Almeida Pereira <jdealmeidapereira@pivotal.io>

Modified Files
--------------
web/pgadmin/tools/debugger/__init__.py             |   3 -
web/pgadmin/tools/sqleditor/__init__.py            | 178 +++--
.../sqleditor/tests/test_explain_plan_templates.py |  73 +-
.../test_extract_sql_from_network_parameters.py    |   5 +-
.../tools/sqleditor/tests/test_start_query_tool.py |  21 +-
.../sqleditor/utils/apply_explain_plan_wrapper.py  |   7 +-
.../tools/sqleditor/utils/start_running_query.py   |  50 +-
.../utils/tests/test_apply_explain_plan_wrapper.py | 146 ++--
.../utils/tests/test_start_running_query.py        | 744 ++++++++++++---------
9 files changed, 671 insertions(+), 556 deletions(-)