No bug - Enable flake8 for tools/crashreporter/system-symbols/win/symsrv-fetch.py and lint it. r=linter-reviewers,sylvestre DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D163616

.flake8

@@ -74,9 +74,6 @@ exclude =
     tools/crashreporter/*.configure,
     .ycm_extra_conf.py,
 
-    # This file uses py3.7 only syntax, so can't currently be checked by flake8 in-tree
-    tools/crashreporter/system-symbols/win/symsrv-fetch.py
-
 # See:
 #   - http://flake8.pycqa.org/en/latest/user/error-codes.html
 #   - http://pep8.readthedocs.io/en/latest/intro.html#configuration

tools/crashreporter/system-symbols/win/symsrv-fetch.py

@@ -24,20 +24,19 @@
 # The script also depends on having write access to the directory it is
 # installed in, to write the skiplist text file.
 
+import argparse
+import asyncio
+import logging
+import os
+import shutil
+import zipfile
+from collections import defaultdict
+from tempfile import mkdtemp
+from urllib.parse import quote, urljoin
+
 from aiofile import AIOFile, LineReader
 from aiohttp import ClientSession, ClientTimeout
 from aiohttp.connector import TCPConnector
-import argparse
-import asyncio
-import os
-import shutil
-import logging
-from collections import defaultdict
-from tempfile import mkdtemp
-from urllib.parse import urljoin
-from urllib.parse import quote
-import zipfile
-
 
 # Just hardcoded here
 MICROSOFT_SYMBOL_SERVER = "https://msdl.microsoft.com/download/symbols/"
@@ -47,7 +46,7 @@ MOZILLA_SYMBOL_SERVER = (
 )
 MISSING_SYMBOLS_URL = "https://symbols.mozilla.org/missingsymbols.csv?microsoft=only"
 HEADERS = {"User-Agent": USER_AGENT}
-SYM_SRV = "SRV*{0}*https://msdl.microsoft.com/download/symbols;SRV*{0}*https://software.intel.com/sites/downloads/symbols;SRV*{0}*https://download.amd.com/dir/bin;SRV*{0}*https://driver-symbols.nvidia.com"
+SYM_SRV = "SRV*{0}*https://msdl.microsoft.com/download/symbols;SRV*{0}*https://software.intel.com/sites/downloads/symbols;SRV*{0}*https://download.amd.com/dir/bin;SRV*{0}*https://driver-symbols.nvidia.com"  # noqa
 TIMEOUT = 7200
 RETRIES = 5
 
@@ -517,7 +516,7 @@ def main():
         )
 
     log.info(
-        f"{stats_collect['is_there']} already present, {stats_skipped['ignorelist']} in ignored list, "
+        f"{stats_collect['is_there']} already present, {stats_skipped['ignorelist']} in ignored list, "  # noqa
         f"{stats_skipped['skiplist']} skipped, {stats_collect['no_pdb']} not found, "
         f"{stats_dump['dump_error']} processed with errors, "
         f"{stats_dump['no_bin']} processed but with no binaries (x86_64)"