reformat to confirm PEPs

nginx_proxy.py

@@ -8,8 +8,8 @@ import signal
 import os
 import logging
 
-target_path="/tmp/nginx/"
-pid_file="/var/run/nginx.pid"
+target_path = "/tmp/nginx/"
+pid_file = "/var/run/nginx.pid"
 non_location_template = """# proxy for container '$containername'
 server {
     listen $listen;
@@ -25,7 +25,7 @@ server {
 }
 """
 
-location_template="""# proxy for container '$containername'
+location_template = """# proxy for container '$containername'
 server {
     listen $listen;
     server_name $names;
@@ -43,21 +43,24 @@ server {
 }
 """
 
+
 def print_json(data):
     """Prints the given value in JSON to stdout. Use this for debugging only"""
     print(json.dumps(data, sort_keys=True, indent=4))
 
+
 def analyse_env_vars(inspect_data):
     """Extracts the environment variables from the given result of an 'inspect
         container' call."""
     env_data = {}
-    if not 'Env' in inspect_data['Config'] or inspect_data['Config']['Env'] is None:
+    if 'Env' not in inspect_data['Config'] or inspect_data['Config']['Env'] is None:
         return env_data
     for env_var in inspect_data['Config']['Env']:
         t = env_var.split("=")
         env_data[t[0]] = t[1]
     return env_data
 
+
 def analyse_proxy_data(data):
     """Extracts the data for the proxy configuration (envrionment variable
         'PROXY_DATA' and converts it to a dictionary."""
@@ -67,20 +70,24 @@ def analyse_proxy_data(data):
         proxy_data[t[0]] = t[1]
     return proxy_data
 
+
 def extract_ip(inspect_data):
     """extracts the container's ip from the given inspect data"""
     return inspect_data['NetworkSettings']['IPAddress']
 
+
 def extract_name(inspect_data):
     """extracts the container's name from the given inspect data"""
     return inspect_data['Name']
 
-def get_if_available(dict, key, defValue):
-    if key in dict:
-        return dict[key]
+
+def get_if_available(dictionary, key, defValue):
+    if key in dictionary:
+        return dictionary[key]
     else:
         return defValue
 
+
 def handle_container(id):
     """This function take a container's id and collects all data required
         to create a proper proxy configuration. The configuration is then
@@ -111,15 +118,18 @@ def handle_container(id):
             else:
                 file.write(Template(location_template).substitute(substitutes))
 
+
 def reload_nginx_configuration():
     logging.info('HUPing nginx')
     os.kill(pid, signal.SIGHUP)
 
+
 def get_pid():
     """This function reads the process id from the given file."""
     with open(pid_file, 'r') as file:
         return int(file.read())
 
+
 def get_docker_id():
     """This function extracts the container's id from /proc/self/cgroup."""
     id = ''
@@ -138,6 +148,7 @@ def get_docker_id():
         logging.error('could not determine container\'s id!')
     return id
 
+
 def get_listen_ips():
     inspect_data = client.inspect_container(get_docker_id())
     mappings = inspect_data['NetworkSettings']['Ports']['80/tcp']
@@ -150,6 +161,7 @@ def get_listen_ips():
             ips.append(data['HostIp'])
     return ips
 
+
 def setup_logging():
     logging.basicConfig(format='%(asctime)s [%(levelname)s]: %(message)s', level=logging.INFO)