Fix flake8 errors

Signed-off-by: Alexey Ermakov <[email protected]>

.travis.yml

@@ -4,6 +4,7 @@ python:
 install:
   - pip install -r requirements.txt
   - pip install coveralls
+  - pip install 'pytest>=3.6'
 script:
   - python setup.py test
   - python setup.py flake8

setup.py

@@ -83,7 +83,7 @@ def finalize_options(self):
     def run_tests(self):
         try:
             import pytest
-        except:
+        except ImportError:
             raise RuntimeError('py.test is not installed, run: pip install pytest')
         params = {'args': self.test_args}
         if self.cov:

zign/api.py

@@ -91,7 +91,7 @@ def load_config_ztoken(config_file: str):
     try:
         with open(config_file) as fd:
             data = yaml.safe_load(fd)
-    except:
+    except Exception:
         data = None
     return data or {}
 
@@ -114,7 +114,7 @@ def get_new_token(realm: str, scope: list, user, password, url=None, insecure=Fa
         raise ServerError('Token Service returned HTTP status {}: {}'.format(response.status_code, response.text))
     try:
         json_data = response.json()
-    except:
+    except Exception:
         raise ServerError('Token Service returned invalid JSON data')
 
     if not json_data.get('access_token'):
@@ -167,7 +167,7 @@ def perform_implicit_flow(config: dict):
     while True:
         try:
             httpd = ClientRedirectServer(('127.0.0.1', port_number))
-        except socket.error as e:
+        except socket.error:
             if port_number > max_port_number:
                 success = False
                 break

zign/cli.py

@@ -69,7 +69,7 @@ def delete_token(obj, name):
 
     try:
         del data[name]
-    except:
+    except Exception:
         pass
 
     with open(TOKENS_FILE_PATH, 'w') as fd: