SyntaxWarning: "is" with a literal. Did you mean "=="?

[mkcn]

In python 3.8 the following warning is shown:

2020-03-10T08:38:37.2701777Z /home/runner/work/fastHistory/fastHistory/fastHistory/parser
/inputParser.py:234: SyntaxWarning: "is" with a literal. Did you mean "=="?
2020-03-10T08:38:37.2702595Z elif string is "":
2020-03-10T08:38:37.2703067Z /home/runner/work/fastHistory/fastHistory/fastHistory/database/databaseSQLite.py:469: SyntaxWarning: "is not" with a literal. Did you mean "!="?
2020-03-10T08:38:37.2703637Z if new_description is not None and new_description is not "" and new_description != old_description:
2020-03-10T08:38:37.2704115Z /home/runner/work/fastHistory/fastHistory/fastHistory/database/databaseSQLite.py:470: SyntaxWarning: "is" with a literal. Did you mean "=="?
2020-03-10T08:38:37.2704540Z if old_description is "":
2020-03-10T08:38:37.2705009Z /home/runner/work/fastHistory/fastHistory/fastHistory/database/databaseSQLite.py:550: SyntaxWarning: "is" with a literal. Did you mean "=="?
2020-03-10T08:38:37.2705443Z if new_cmd is None or new_cmd is "":
2020-03-10T08:38:37.2705880Z /home/runner/work/fastHistory/fastHistory/fastHistory/pick/pageGeneric.py:76: SyntaxWarning: "is not" with a literal. Did you mean "!="?
2020-03-10T08:38:37.2707169Z if index_sub_str is not -1:

[mkcn]

fixed in ac9943e
this may be needed to be reopen in the future