Iota2 project pylint compliance.

Several times requests concerning the quality of syntax were made and often partially completed (#456 (closed), #576). Since the pre-commit hook and its configuration file .pre-commit-config.yaml allow pylint recommendations, the purpose of this issue is to ask developers to take some of the pylint messages and fix them.

Here is a table which summarize every pylint messages and their occurrence. Generated thanks to pylint_report.txt

pylint message	occurence	done : ✅ not done : ⬜
R0914, too-many-locals	135	⬜
R0913, too-many-arguments	29	⬜
R0902, too-many-instance-attributes	50	⬜
W1514, unspecified-encoding	28	⬜
R0915, too-many-statements	43	⬜
W0511, fixme	27	⬜
R0912, too-many-branches	34	⬜
C0116, missing-function-docstring	24	✅
W0613, unused-argument	26	✅
R1732, consider-using-with	26	✅
E1101, no-member	23	✅
C0302, too-many-lines	21	⬜
W0703, broad-except	20	✅
W0201, attribute-defined-outside-init	1	⬜
R0903, too-few-public-methods	13	⬜
C0415, import-outside-toplevel	11	✅
C0115, missing-class-docstring	10	✅
W0707, raise-missing-from	8	✅
E0611, no-name-in-module	8	✅
R1728, consider-using-generator	6	✅
C0103, invalid-name	4	✅
R0904, too-many-public-methods	5	⬜
W0612, unused-variable	3	✅
C0113, unneeded-not	2	✅
W1404, implicit-str-concat	2	✅
C0200, consider-using-enumerate	2	✅
W0621, redefined-outer-name	2	✅
C0301, line-too-long	2	✅
W3101, missing-timeout	2	✅
W0107, unnecessary-pass	2	✅
W0212, protected-access	1	✅
E0601, used-before-assignment	1	✅
W0611, unused-import	1	✅
W0105, pointless-string-statement	1	✅
W0102, dangerous-default-value	1	✅
C0206, consider-using-dict-items	1	✅
E1123, unexpected-keyword-arg	1	✅
E1137, unsupported-assignment-operation	1	✅
C0114, missing-module-docstring	1	✅
E0011, unrecognized-inline-option	1	✅

[UPDATE] : the table has been updated after the removal of

                R0913, # too many args
		W1203, # logging fstring
		C0415, # import outside toplevel
		R0913, # too many args
		R0902, # too-many-instance-attributes
		R0914, # too-many-locals
		R0912, # too many branches (to be removed )
		R0915, # too many statements (to be removed)
		W0511, # TODO (to be removed)
		C0302 # too many lines in module

in our .pylintrc file which disable some pylint messages.

developers will have to work together to ensure that they do not assign the same tasks simultaneously. Once a task is done, please change the corresponding ⬜ to ✅ into this post.