From ef771cc4c2d988e5188ba7e75df9adebb0ebafe1 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Wed, 24 Oct 2018 10:35:01 +0100 Subject: [PATCH] Fix a number of flake8 errors Broadly three things here: * disable W504 which seems a bit whacko * remove a bunch of `as e` expressions from exception handlers that don't use them * use `r""` for strings which include backslashes Also, we don't use pep8 any more, so we can get rid of the duplicate config there. --- changelog.d/4082.misc | 1 + scripts-dev/tail-synapse.py | 2 +- scripts/synapse_port_db | 3 ++- setup.cfg | 17 ++++++++--------- synapse/config/repository.py | 2 +- synapse/crypto/keyclient.py | 2 +- synapse/federation/federation_server.py | 2 +- synapse/rest/client/v2_alpha/auth.py | 2 +- synapse/rest/media/v1/preview_url_resource.py | 2 +- synapse/storage/registration.py | 2 +- tests/config/test_generate.py | 2 +- tests/events/test_utils.py | 4 ++-- 12 files changed, 21 insertions(+), 20 deletions(-) create mode 100644 changelog.d/4082.misc diff --git a/changelog.d/4082.misc b/changelog.d/4082.misc new file mode 100644 index 0000000000..a81faf5e9b --- /dev/null +++ b/changelog.d/4082.misc @@ -0,0 +1 @@ +Clean up some bits of code which were flagged by the linter diff --git a/scripts-dev/tail-synapse.py b/scripts-dev/tail-synapse.py index 1a36b94038..7c9985d9f0 100644 --- a/scripts-dev/tail-synapse.py +++ b/scripts-dev/tail-synapse.py @@ -48,7 +48,7 @@ def main(): row.name: row.position for row in replicate(server, {"streams": "-1"})["streams"].rows } - except requests.exceptions.ConnectionError as e: + except requests.exceptions.ConnectionError: time.sleep(0.1) while True: diff --git a/scripts/synapse_port_db b/scripts/synapse_port_db index 2f6e69e552..3c7b606323 100755 --- a/scripts/synapse_port_db +++ b/scripts/synapse_port_db @@ -501,7 +501,8 @@ class Porter(object): try: yield self.postgres_store.runInteraction("alter_table", alter_table) - except Exception as e: + except Exception: + # On Error Resume Next pass yield self.postgres_store.runInteraction( diff --git a/setup.cfg b/setup.cfg index 52feaa9cc7..b6b4aa740d 100644 --- a/setup.cfg +++ b/setup.cfg @@ -14,17 +14,16 @@ ignore = pylint.cfg tox.ini -[pep8] -max-line-length = 90 -# W503 requires that binary operators be at the end, not start, of lines. Erik -# doesn't like it. E203 is contrary to PEP8. E731 is silly. -ignore = W503,E203,E731 - [flake8] -# note that flake8 inherits the "ignore" settings from "pep8" (because it uses -# pep8 to do those checks), but not the "max-line-length" setting max-line-length = 90 -ignore=W503,E203,E731 + +# see https://pycodestyle.readthedocs.io/en/latest/intro.html#error-codes +# for error codes. The ones we ignore are: +# W503: line break before binary operator +# W504: line break after binary operator +# E203: whitespace before ':' (which is contrary to pep8?) +# E731: do not assign a lambda expression, use a def +ignore=W503,W504,E203,E731 [isort] line_length = 89 diff --git a/synapse/config/repository.py b/synapse/config/repository.py index fc909c1fac..06c62ab62c 100644 --- a/synapse/config/repository.py +++ b/synapse/config/repository.py @@ -178,7 +178,7 @@ class ContentRepositoryConfig(Config): def default_config(self, **kwargs): media_store = self.default_path("media_store") uploads_path = self.default_path("uploads") - return """ + return r""" # Directory where uploaded images and attachments are stored. media_store_path: "%(media_store)s" diff --git a/synapse/crypto/keyclient.py b/synapse/crypto/keyclient.py index 57d4665e84..080c81f14b 100644 --- a/synapse/crypto/keyclient.py +++ b/synapse/crypto/keyclient.py @@ -55,7 +55,7 @@ def fetch_server_key(server_name, tls_client_options_factory, path=KEY_API_V1): raise IOError("Cannot get key for %r" % server_name) except (ConnectError, DomainError) as e: logger.warn("Error getting key for %r: %s", server_name, e) - except Exception as e: + except Exception: logger.exception("Error getting key for %r", server_name) raise IOError("Cannot get key for %r" % server_name) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 4efe95faa4..af0107a46e 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -800,7 +800,7 @@ class FederationHandlerRegistry(object): yield handler(origin, content) except SynapseError as e: logger.info("Failed to handle edu %r: %r", edu_type, e) - except Exception as e: + except Exception: logger.exception("Failed to handle edu %r", edu_type) def on_query(self, query_type, args): diff --git a/synapse/rest/client/v2_alpha/auth.py b/synapse/rest/client/v2_alpha/auth.py index bd8b5f4afa..693b303881 100644 --- a/synapse/rest/client/v2_alpha/auth.py +++ b/synapse/rest/client/v2_alpha/auth.py @@ -99,7 +99,7 @@ class AuthRestServlet(RestServlet): cannot be handled in the normal flow (with requests to the same endpoint). Current use is for web fallback auth. """ - PATTERNS = client_v2_patterns("/auth/(?P[\w\.]*)/fallback/web") + PATTERNS = client_v2_patterns(r"/auth/(?P[\w\.]*)/fallback/web") def __init__(self, hs): super(AuthRestServlet, self).__init__() diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py index 8c892ff187..1a7bfd6b56 100644 --- a/synapse/rest/media/v1/preview_url_resource.py +++ b/synapse/rest/media/v1/preview_url_resource.py @@ -674,7 +674,7 @@ def summarize_paragraphs(text_nodes, min_size=200, max_size=500): # This splits the paragraph into words, but keeping the # (preceeding) whitespace intact so we can easily concat # words back together. - for match in re.finditer("\s*\S+", description): + for match in re.finditer(r"\s*\S+", description): word = match.group() # Keep adding words while the total length is less than diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py index 26b429e307..2dd14aba1c 100644 --- a/synapse/storage/registration.py +++ b/synapse/storage/registration.py @@ -567,7 +567,7 @@ class RegistrationStore(RegistrationWorkerStore, def _find_next_generated_user_id(txn): txn.execute("SELECT name FROM users") - regex = re.compile("^@(\d+):") + regex = re.compile(r"^@(\d+):") found = set() diff --git a/tests/config/test_generate.py b/tests/config/test_generate.py index f88d28a19d..0c23068bcf 100644 --- a/tests/config/test_generate.py +++ b/tests/config/test_generate.py @@ -67,6 +67,6 @@ class ConfigGenerationTestCase(unittest.TestCase): with open(log_config_file) as f: config = f.read() # find the 'filename' line - matches = re.findall("^\s*filename:\s*(.*)$", config, re.M) + matches = re.findall(r"^\s*filename:\s*(.*)$", config, re.M) self.assertEqual(1, len(matches)) self.assertEqual(matches[0], expected) diff --git a/tests/events/test_utils.py b/tests/events/test_utils.py index ff217ca8b9..d0cc492deb 100644 --- a/tests/events/test_utils.py +++ b/tests/events/test_utils.py @@ -156,7 +156,7 @@ class SerializeEventTestCase(unittest.TestCase): room_id="!foo:bar", content={"key.with.dots": {}}, ), - ["content.key\.with\.dots"], + [r"content.key\.with\.dots"], ), {"content": {"key.with.dots": {}}}, ) @@ -172,7 +172,7 @@ class SerializeEventTestCase(unittest.TestCase): "nested.dot.key": {"leaf.key": 42, "not_me_either": 1}, }, ), - ["content.nested\.dot\.key.leaf\.key"], + [r"content.nested\.dot\.key.leaf\.key"], ), {"content": {"nested.dot.key": {"leaf.key": 42}}}, )