lint: Bump flake8 to 3.6.0 #15221

1. 
   Empact commented at 2:02 am on January 21, 2019: member

   Fix new lints in: W504 line break after binary operator W605 invalid escape sequence F841 local variable ’e’ is assigned to but never used

   https://github.com/PyCQA/flake8/blob/master/docs/source/release-notes/3.6.0.rst

2. lint: Bump flake8 to 3.6.0

   Fix new lints in:
   W504 line break after binary operator
   W605 invalid escape sequence
   F841 local variable 'e' is assigned to but never used
   
   https://github.com/PyCQA/flake8/blob/master/docs/source/release-notes/3.6.0.rst

   ddd5d31d66
3. fanquake added the label Scripts and tools on Jan 21, 2019
4. 
   practicalswift commented at 2:23 pm on January 21, 2019: contributor

   utACK ddd5d31d66f3a6ca8737f1249a8ddd830bff8950

   Thanks for doing this!

5. 
   promag commented at 4:30 pm on January 21, 2019: member

   LGTM.
6. in contrib/devtools/copyright_header.py:89 in ddd5d31d66

   85@@ -87,20 +86,20 @@ def compile_copyright_regex(copyright_style, year_style, name):
   86     "Bitcoin Core Developers\n",
   87     "the Bitcoin Core developers\n",
   88     "The Bitcoin developers\n",
   89-    "The LevelDB Authors\. All rights reserved\.\n",
   90-    "BitPay Inc\.\n",
   91-    "BitPay, Inc\.\n",
   92-    "University of Illinois at Urbana-Champaign\.\n",
   93+    r"The LevelDB Authors\. All rights reserved\.\n",
   

   ---

   ---

   

   laanwj commented at 7:47 pm on January 21, 2019:

   I don’t think simply adding r here is correct.

   0>>> "The LevelDB Authors\. All rights reserved\.\n" == r"The LevelDB Authors\. All rights reserved\.\n"
   1False
   

   A raw string will contain literal .\n`` which is not the intent here.

   ---

   

   laanwj commented at 7:55 pm on January 21, 2019:

   the problem here is that the . should not be escaped, not that the string is not raw !
7. 
   Empact commented at 0:45 am on January 22, 2019: member

   Planning to re-open later.
8. Empact closed this on Jan 22, 2019

   ---

9. MarcoFalke referenced this in commit 45be44cce4 on Sep 5, 2019
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Contributors
Empact practicalswift promag laanwj

Labels
Scripts and tools