Use dict comprehension in plugins (#8814)

* use dict comprehension in plugins

* Apply suggestions from code review

* add changelog frag

* fix references in changelog frag

changelogs/fragments/8814-dict-comprehension.yml

@@ -0,0 +1,23 @@
+minor_changes:
+  - hashids filter plugin - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - keep_keys filter plugin - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - remove_keys filter plugin - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - replace_keys filter plugin - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - csv module utils - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - vars MH module utils - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - vardict module utils - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - apache2_mod_proxy - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - gitlab_group - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - keycloak_client - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - keycloak_clientscope - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - keycloak_identity_provider - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - keycloak_user_federation - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - linode - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - lxd_container - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - manageiq_provider - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - one_service - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - one_vm - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - proxmox - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - proxmox_disk - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - proxmox_kvm - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).
+  - unsafe plugin utils - replace Python 2.6 construct with dict comprehensions (https://github.com/ansible-collections/community.general/pull/8814).

plugins/filter/hashids.py

@@ -27,7 +27,7 @@ def initialize_hashids(**kwargs):
     if not HAS_HASHIDS:
         raise AnsibleError("The hashids library must be installed in order to use this plugin")
 
-    params = dict((k, v) for k, v in kwargs.items() if v)
+    params = {k: v for k, v in kwargs.items() if v}
 
     try:
         return Hashids(**params)

plugins/filter/keep_keys.py

@@ -127,7 +127,7 @@ def keep_key(key):
         def keep_key(key):
             return tt.match(key) is not None
 
-    return [dict((k, v) for k, v in d.items() if keep_key(k)) for d in data]
+    return [{k: v for k, v in d.items() if keep_key(k)} for d in data]
 
 
 class FilterModule(object):

plugins/filter/remove_keys.py

@@ -127,7 +127,7 @@ def keep_key(key):
         def keep_key(key):
             return tt.match(key) is None
 
-    return [dict((k, v) for k, v in d.items() if keep_key(k)) for d in data]
+    return [{k: v for k, v in d.items() if keep_key(k)} for d in data]
 
 
 class FilterModule(object):

plugins/filter/replace_keys.py

@@ -169,7 +169,7 @@ def replace_key(key):
                     return a
             return key
 
-    return [dict((replace_key(k), v) for k, v in d.items()) for d in data]
+    return [{replace_key(k): v for k, v in d.items()} for d in data]
 
 
 class FilterModule(object):

plugins/module_utils/csv.py

@@ -43,7 +43,7 @@ class unix_dialect(csv.Dialect):
         raise DialectNotAvailableError("Dialect '%s' is not supported by your version of python." % dialect)
 
     # Create a dictionary from only set options
-    dialect_params = dict((k, v) for k, v in kwargs.items() if v is not None)
+    dialect_params = {k: v for k, v in kwargs.items() if v is not None}
     if dialect_params:
         try:
             csv.register_dialect('custom', dialect, **dialect_params)

plugins/module_utils/mh/mixins/vars.py

@@ -113,7 +113,7 @@ def set(self, name, value, **kwargs):
         self._meta[name] = meta
 
     def output(self):
-        return dict((k, v) for k, v in self._data.items() if self.meta(k).output)
+        return {k: v for k, v in self._data.items() if self.meta(k).output}
 
     def diff(self):
         diff_results = [(k, self.meta(k).diff_result) for k in self._data]
@@ -125,7 +125,7 @@ def diff(self):
         return None
 
     def facts(self):
-        facts_result = dict((k, v) for k, v in self._data.items() if self._meta[k].fact)
+        facts_result = {k: v for k, v in self._data.items() if self._meta[k].fact}
         return facts_result if facts_result else None
 
     def change_vars(self):

plugins/module_utils/vardict.py

@@ -175,23 +175,23 @@ def set(self, name, value, **kwargs):
         self.__vars__[name] = var
 
     def output(self, verbosity=0):
-        return dict((n, v.value) for n, v in self.__vars__.items() if v.output and v.is_visible(verbosity))
+        return {n: v.value for n, v in self.__vars__.items() if v.output and v.is_visible(verbosity)}
 
     def diff(self, verbosity=0):
         diff_results = [(n, v.diff_result) for n, v in self.__vars__.items() if v.diff_result and v.is_visible(verbosity)]
         if diff_results:
-            before = dict((n, dr['before']) for n, dr in diff_results)
-            after = dict((n, dr['after']) for n, dr in diff_results)
+            before = {n: dr['before'] for n, dr in diff_results}
+            after = {n: dr['after'] for n, dr in diff_results}
             return {'before': before, 'after': after}
         return None
 
     def facts(self, verbosity=0):
-        facts_result = dict((n, v.value) for n, v in self.__vars__.items() if v.fact and v.is_visible(verbosity))
+        facts_result = {n: v.value for n, v in self.__vars__.items() if v.fact and v.is_visible(verbosity)}
         return facts_result if facts_result else None
 
     @property
     def has_changed(self):
         return any(var.has_changed for var in self.__vars__.values())
 
     def as_dict(self):
-        return dict((name, var.value) for name, var in self.__vars__.items())
+        return {name: var.value for name, var in self.__vars__.items()}

plugins/modules/apache2_mod_proxy.py

@@ -286,7 +286,7 @@ def get_member_status(self):
                           'hot_standby': 'Stby',
                           'ignore_errors': 'Ign'}
         actual_status = str(self.attributes['Status'])
-        status = dict((mode, patt in actual_status) for mode, patt in iteritems(status_mapping))
+        status = {mode: patt in actual_status for mode, patt in iteritems(status_mapping)}
         return status
 
     def set_member_status(self, values):

plugins/modules/gitlab_group.py

@@ -261,7 +261,7 @@ def create_group(self, arguments):
 
         try:
             # Filter out None values
-            filtered = dict((arg_key, arg_value) for arg_key, arg_value in arguments.items() if arg_value is not None)
+            filtered = {arg_key: arg_value for arg_key, arg_value in arguments.items() if arg_value is not None}
 
             group = self._gitlab.groups.create(filtered)
         except (gitlab.exceptions.GitlabCreateError) as e:

plugins/modules/keycloak_client.py

@@ -1006,7 +1006,7 @@ def main():
         # Unfortunately, the ansible argument spec checker introduces variables with null values when
         # they are not specified
         if client_param == 'protocol_mappers':
-            new_param_value = [dict((k, v) for k, v in x.items() if x[k] is not None) for x in new_param_value]
+            new_param_value = [{k: v for k, v in x.items() if v is not None} for x in new_param_value]
         elif client_param == 'authentication_flow_binding_overrides':
             new_param_value = flow_binding_from_dict_to_model(new_param_value, realm, kc)
 

plugins/modules/keycloak_clientscope.py

@@ -428,7 +428,7 @@ def main():
         # Unfortunately, the ansible argument spec checker introduces variables with null values when
         # they are not specified
         if clientscope_param == 'protocol_mappers':
-            new_param_value = [dict((k, v) for k, v in x.items() if x[k] is not None) for x in new_param_value]
+            new_param_value = [{k: v for k, v in x.items() if v is not None} for x in new_param_value]
         changeset[camel(clientscope_param)] = new_param_value
 
     # Prepare the desired values using the existing values (non-existence results in a dict that is save to use as a basis)

plugins/modules/keycloak_identity_provider.py

@@ -534,7 +534,7 @@ def main():
     # special handling of mappers list to allow change detection
     if module.params.get('mappers') is not None:
         for change in module.params['mappers']:
-            change = dict((k, v) for k, v in change.items() if change[k] is not None)
+            change = {k: v for k, v in change.items() if v is not None}
             if change.get('id') is None and change.get('name') is None:
                 module.fail_json(msg='Either `name` or `id` has to be specified on each mapper.')
             if before_idp == dict():

plugins/modules/keycloak_user_federation.py

@@ -724,7 +724,7 @@
 def sanitize(comp):
     compcopy = deepcopy(comp)
     if 'config' in compcopy:
-        compcopy['config'] = dict((k, v[0]) for k, v in compcopy['config'].items())
+        compcopy['config'] = {k: v[0] for k, v in compcopy['config'].items()}
         if 'bindCredential' in compcopy['config']:
             compcopy['config']['bindCredential'] = '**********'
         # an empty string is valid for krbPrincipalAttribute but is filtered out in diff
@@ -733,7 +733,7 @@ def sanitize(comp):
     if 'mappers' in compcopy:
         for mapper in compcopy['mappers']:
             if 'config' in mapper:
-                mapper['config'] = dict((k, v[0]) for k, v in mapper['config'].items())
+                mapper['config'] = {k: v[0] for k, v in mapper['config'].items()}
     return compcopy
 
 
@@ -886,7 +886,7 @@ def main():
         new_param_value = module.params.get(param)
         old_value = before_comp[camel(param)] if camel(param) in before_comp else None
         if param == 'mappers':
-            new_param_value = [dict((k, v) for k, v in x.items() if x[k] is not None) for x in new_param_value]
+            new_param_value = [{k: v for k, v in x.items() if v is not None} for x in new_param_value]
         if new_param_value != old_value:
             changeset[camel(param)] = new_param_value
 
@@ -895,7 +895,7 @@ def main():
         if module.params['provider_id'] in ['kerberos', 'sssd']:
             module.fail_json(msg='Cannot configure mappers for {type} provider.'.format(type=module.params['provider_id']))
         for change in module.params['mappers']:
-            change = dict((k, v) for k, v in change.items() if change[k] is not None)
+            change = {k: v for k, v in change.items() if v is not None}
             if change.get('id') is None and change.get('name') is None:
                 module.fail_json(msg='Either `name` or `id` has to be specified on each mapper.')
             if cid is None:

plugins/modules/linode.py

@@ -670,7 +670,7 @@ def main():
         backupwindow=backupwindow,
     )
 
-    kwargs = dict((k, v) for k, v in check_items.items() if v is not None)
+    kwargs = {k: v for k, v in check_items.items() if v is not None}
 
     # setup the auth
     try:

plugins/modules/lxd_container.py

@@ -616,8 +616,15 @@ def _unfreeze_instance(self):
     def _instance_ipv4_addresses(self, ignore_devices=None):
         ignore_devices = ['lo'] if ignore_devices is None else ignore_devices
         data = (self._get_instance_state_json() or {}).get('metadata', None) or {}
-        network = dict((k, v) for k, v in (data.get('network', None) or {}).items() if k not in ignore_devices)
-        addresses = dict((k, [a['address'] for a in v['addresses'] if a['family'] == 'inet']) for k, v in network.items())
+        network = {
+            k: v
+            for k, v in data.get('network', {}).items()
+            if k not in ignore_devices
+        }
+        addresses = {
+            k: [a['address'] for a in v['addresses'] if a['family'] == 'inet']
+            for k, v in network.items()
+        }
         return addresses
 
     @staticmethod
@@ -748,19 +755,22 @@ def _apply_instance_configs(self):
     def run(self):
         """Run the main method."""
 
+        def adjust_content(content):
+            return content if not isinstance(content, dict) else {
+                k: v for k, v in content.items() if not (self.ignore_volatile_options and k.startswith('volatile.'))
+            }
+
         try:
             if self.trust_password is not None:
                 self.client.authenticate(self.trust_password)
             self.ignore_volatile_options = self.module.params.get('ignore_volatile_options')
 
             self.old_instance_json = self._get_instance_json()
-            self.old_sections = dict(
-                (section, content) if not isinstance(content, dict)
-                else (section, dict((k, v) for k, v in content.items()
-                                    if not (self.ignore_volatile_options and k.startswith('volatile.'))))
-                for section, content in (self.old_instance_json.get('metadata', None) or {}).items()
+            self.old_sections = {
+                section: adjust_content(content)
+                for section, content in self.old_instance_json.get('metadata', {}).items()
                 if section in set(CONFIG_PARAMS) - set(CONFIG_CREATION_PARAMS)
-            )
+            }
 
             self.diff['before']['instance'] = self.old_sections
             # preliminary, will be overwritten in _apply_instance_configs() if called

plugins/modules/manageiq_provider.py

@@ -715,7 +715,7 @@ def delete_nulls(h):
     if isinstance(h, list):
         return [delete_nulls(i) for i in h]
     if isinstance(h, dict):
-        return dict((k, delete_nulls(v)) for k, v in h.items() if v is not None)
+        return {k: delete_nulls(v) for k, v in h.items() if v is not None}
 
     return h
 

plugins/modules/one_service.py

@@ -339,7 +339,7 @@ def get_service_info(module, auth, service):
 
 def create_service(module, auth, template_id, service_name, custom_attrs, unique, wait, wait_timeout):
     # make sure that the values in custom_attrs dict are strings
-    custom_attrs_with_str = dict((k, str(v)) for k, v in custom_attrs.items())
+    custom_attrs_with_str = {k: str(v) for k, v in custom_attrs.items()}
 
     data = {
         "action": {

plugins/modules/one_vm.py

@@ -1559,11 +1559,11 @@ def main():
         one_client = pyone.OneServer(auth.url, session=auth.username + ':' + auth.password)
 
     if attributes:
-        attributes = dict((key.upper(), value) for key, value in attributes.items())
+        attributes = {key.upper(): value for key, value in attributes.items()}
         check_attributes(module, attributes)
 
     if count_attributes:
-        count_attributes = dict((key.upper(), value) for key, value in count_attributes.items())
+        count_attributes = {key.upper(): value for key, value in count_attributes.items()}
         if not attributes:
             import copy
             module.warn('When you pass `count_attributes` without `attributes` option when deploying, `attributes` option will have same values implicitly.')

plugins/modules/proxmox.py

@@ -771,7 +771,7 @@ def build_volume(
                 )
 
         # Remove all empty kwarg entries
-        kwargs = dict((key, val) for key, val in kwargs.items() if val is not None)
+        kwargs = {key: val for key, val in kwargs.items() if val is not None}
 
         if cpus is not None:
             kwargs["cpulimit"] = cpus
@@ -842,7 +842,7 @@ def create_instance(self, vmid, node, disk, storage, cpus, memory, swap, timeout
         proxmox_node = self.proxmox_api.nodes(node)
 
         # Remove all empty kwarg entries
-        kwargs = dict((k, v) for k, v in kwargs.items() if v is not None)
+        kwargs = {k: v for k, v in kwargs.items() if v is not None}
 
         pve_version = self.version()
 

plugins/modules/proxmox_disk.py

@@ -524,8 +524,11 @@ def get_create_attributes(self):
         # - Remove not defined args
         # - Ensure True and False converted to int.
         # - Remove unnecessary parameters
-        params = dict((k, v) for k, v in self.module.params.items() if v is not None and k in self.create_update_fields)
-        params.update(dict((k, int(v)) for k, v in params.items() if isinstance(v, bool)))
+        params = {
+            k: int(v) if isinstance(v, bool) else v
+            for k, v in self.module.params.items()
+            if v is not None and k in self.create_update_fields
+        }
         return params
 
     def wait_till_complete_or_timeout(self, node_name, task_id):
@@ -598,7 +601,7 @@ def create_disk(self, disk, vmid, vm, vm_config):
             if iso_image is not None:
                 playbook_config['volume'] = iso_image
             # Values in params are numbers, but strings are needed to compare with disk_config
-            playbook_config = dict((k, str(v)) for k, v in playbook_config.items())
+            playbook_config = {k: str(v) for k, v in playbook_config.items()}
 
             # Now compare old and new config to detect if changes are needed
             if proxmox_config == playbook_config:
@@ -626,7 +629,7 @@ def move_disk(self, disk, vmid, vm, vm_config):
         params['format'] = self.module.params['format']
         params['delete'] = 1 if self.module.params.get('delete_moved', False) else 0
         # Remove not defined args
-        params = dict((k, v) for k, v in params.items() if v is not None)
+        params = {k: v for k, v in params.items() if v is not None}
 
         if params.get('storage', False):
             disk_config = disk_conf_str_to_dict(vm_config[disk])

plugins/modules/proxmox_kvm.py

@@ -970,7 +970,7 @@ def get_vminfo(self, node, vmid, **kwargs):
             self.module.fail_json(msg='Getting information for VM with vmid = %s failed with exception: %s' % (vmid, e))
 
         # Sanitize kwargs. Remove not defined args and ensure True and False converted to int.
-        kwargs = dict((k, v) for k, v in kwargs.items() if v is not None)
+        kwargs = {k: v for k, v in kwargs.items() if v is not None}
 
         # Convert all dict in kwargs to elements.
         # For hostpci[n], ide[n], net[n], numa[n], parallel[n], sata[n], scsi[n], serial[n], virtio[n]
@@ -996,7 +996,7 @@ def settings(self, vmid, node, **kwargs):
         proxmox_node = self.proxmox_api.nodes(node)
 
         # Sanitize kwargs. Remove not defined args and ensure True and False converted to int.
-        kwargs = dict((k, v) for k, v in kwargs.items() if v is not None)
+        kwargs = {k: v for k, v in kwargs.items() if v is not None}
 
         return proxmox_node.qemu(vmid).config.set(**kwargs) is None
 
@@ -1031,7 +1031,7 @@ def create_vm(self, vmid, newid, node, name, memory, cpu, cores, sockets, update
         proxmox_node = self.proxmox_api.nodes(node)
 
         # Sanitize kwargs. Remove not defined args and ensure True and False converted to int.
-        kwargs = dict((k, v) for k, v in kwargs.items() if v is not None)
+        kwargs = {k: v for k, v in kwargs.items() if v is not None}
         kwargs.update(dict([k, int(v)] for k, v in kwargs.items() if isinstance(v, bool)))
 
         version = self.version()

plugins/plugin_utils/unsafe.py

@@ -24,7 +24,7 @@ def make_unsafe(value):
         return value
 
     if isinstance(value, Mapping):
-        return dict((make_unsafe(key), make_unsafe(val)) for key, val in value.items())
+        return {make_unsafe(key): make_unsafe(val) for key, val in value.items()}
     elif isinstance(value, Set):
         return set(make_unsafe(elt) for elt in value)
     elif is_sequence(value):