Add pylint py3 portability checks for the fm-rest-api repo

A lot of work has gone into making sure that StarlingX is python3
compatible. To ensure future compatibility, enable the python3
portability checks. Disable the checks that are raising errors.
Another set of commits will address the offending code.

Story: 2006796
Task: 43102
Signed-off-by: Bernardo Decco de Siqueira <bernardo.deccodesiqueira@windriver.com>
Change-Id: I1275e8d1d0fd0d9e998a29a67372de4ed78a2c7d

.zuul.yaml

@@ -96,7 +96,6 @@
       bindep_profile: test py39
       python_version: 3.9
       tox_envlist: py39
-      tox_extra_args: -c fm-rest-api/fm/tox.ini
 
 - job:
     name: fault-tox-pylint

pylint.rc

@@ -34,7 +34,87 @@ extension-pkg-whitelist=lxml.etree,greenlet
 # Enable the message, report, category or checker with the given id(s). You can
 # either give multiple identifier separated by comma (,) or put this option
 # multiple time.
-#enable=
+#
+# Python3 checker:
+#
+# E1601: print-statement
+# E1602: parameter-unpacking
+# E1603: unpacking-in-except
+# E1604: old-raise-syntax
+# E1605: backtick
+# E1606: long-suffix
+# E1607: old-ne-operator
+# E1608: old-octal-literal
+# E1609: import-star-module-level
+# E1610: non-ascii-bytes-literal
+# E1611: invalid-unicode-literal
+# W1601: apply-builtin
+# W1602: basestring-builtin
+# W1603: buffer-builtin
+# W1604: cmp-builtin
+# W1605: coerce-builtin
+# W1606: execfile-builtin
+# W1607: file-builtin
+# W1608: long-builtin
+# W1609: raw_input-builtin
+# W1610: reduce-builtin
+# W1611: standarderror-builtin
+# W1612: unicode-builtin
+# W1613: xrange-builtin
+# W1614: coerce-method
+# W1615: delslice-method
+# W1616: getslice-method
+# W1617: setslice-method
+# W1618: no-absolute-import
+# W1619: old-division
+# W1620: dict-iter-method
+# W1621: dict-view-method
+# W1622: next-method-called
+# W1623: metaclass-assignment
+# W1624: indexing-exception
+# W1625: raising-string
+# W1626: reload-builtin
+# W1627: oct-method
+# W1628: hex-method
+# W1629: nonzero-method
+# W1630: cmp-method
+# W1632: input-builtin
+# W1633: round-builtin
+# W1634: intern-builtin
+# W1635: unichr-builtin
+# W1636: map-builtin-not-iterating
+# W1637: zip-builtin-not-iterating
+# W1638: range-builtin-not-iterating
+# W1639: filter-builtin-not-iterating
+# W1640: using-cmp-argument
+# W1641: eq-without-hash
+# W1642: div-method
+# W1643: idiv-method
+# W1644: rdiv-method
+# W1645: exception-message-attribute
+# W1646: invalid-str-codec
+# W1647: sys-max-int
+# W1648: bad-python3-import
+# W1649: deprecated-string-function
+# W1650: deprecated-str-translate-call
+# W1651: deprecated-itertools-function
+# W1652: deprecated-types-field
+# W1653: next-method-defined
+# W1654: dict-items-not-iterating
+# W1655: dict-keys-not-iterating
+# W1656: dict-values-not-iterating
+# W1657: deprecated-operator-function
+# W1658: deprecated-urllib-function
+# W1659: xreadlines-attribute
+# W1660: deprecated-sys-function
+# W1661: exception-escape
+# W1662: comprehension-escape
+enable=E1603,E1609,E1610,E1602,E1606,E1608,E1607,E1605,E1604,E1601,E1611,W1652,
+       W1651,W1649,W1657,W1660,W1658,W1659,W1623,W1622,W1620,W1621,W1645,W1641,
+       W1624,W1648,W1625,W1611,W1662,W1661,W1650,W1640,W1630,W1614,W1615,W1642,
+       W1616,W1628,W1643,W1629,W1627,W1644,W1617,W1601,W1602,W1603,W1604,W1605,
+       W1654,W1655,W1656,W1619,W1606,W1607,W1639,W1618,W1632,W1634,W1608,W1636,
+       W1653,W1646,W1638,W1609,W1610,W1626,W1633,W1647,W1635,W1612,W1613,W1637
 
 # Disable the message, report, category or checker with the given id(s). You
 # can either give multiple identifier separated by comma (,) or put this option
@@ -65,6 +145,9 @@ extension-pkg-whitelist=lxml.etree,greenlet
 # W0622 redefined-builtin
 # W0703 broad-except
 # W1401 anomalous-backslash-in-string
+# W1618: no-absolute-import
+# W1619: old-division
+# W1641: eq-without-hash
 # E are error codes
 # E0604 invalid-all-object
 # E1101 no-member
@@ -76,8 +159,8 @@ extension-pkg-whitelist=lxml.etree,greenlet
 disable=C, R, fixme,
         W0102,W0106,W0107,W0110,W0201,W0212,W0221,W0223,W0231,W0237,W0235,
         W0311,W0403,W0603,W0612,W0613,W0621,W0622,W0703,W1401,
-        W0143,W1505,E0604,E0611,E0702,E1136,E0401,
-        E0604,E1101,E1102,E1120,E1121
+        W0143,W1505,W1618,W1619,W1641,E0604,E0611,E0702,E1136,
+	E0401,E0604,E1101,E1102,E1120,E1121
 
 [REPORTS]
 # Set the output format. Available formats are text, parseable, colorized, msvs