Fix the repo with all the linter based warning

[shahsmit14]

The repo has linter running but there are quite some warnings which are not breaking but needs to be resolved.

Example pipeline: https://github.com/zillow/luminaire/runs/5104474237?check_suite_focus=true

11    C901 'DataExploration._detrender' is too complex (13)
7     E122 continuation line missing indentation or outdented
12    E127 continuation line over-indented for visual indent
29    E128 continuation line under-indented for visual indent
2     E[203](https://github.com/zillow/luminaire/runs/5104474237?check_suite_focus=true#step:6:203) whitespace before ':'
2     E225 missing whitespace around operator
2     E231 missing whitespace after ','
3     E266 too many leading '#' for block comment
22    E302 expected 2 blank lines, found 1
10    E303 too many blank lines (2)
9     E501 line too long (134 > 127 characters)
1     E714 test for object identity should be 'is not'
2     E722 do not use bare 'except'
16    F401 'luminaire.optimization' imported but unused
5     F403 'from luminaire.exploration.data_exploration import *' used; unable to detect undefined names
34    F405 'DataExploration' may be undefined, or defined from star imports: luminaire.exploration.data_exploration
1     F841 local variable 'e' is assigned to but never used
1     W291 trailing whitespace
3     W292 no newline at end of file
4     W293 blank line contains whitespace
1     W391 blank line at end of file