Fix spelling issues in python code comments and messages

cassandra/__init__.py

@@ -28,7 +28,7 @@ def emit(self, record):
 
 class ConsistencyLevel(object):
     """
-    Spcifies how many replicas must respond for an operation to be considered
+    Specifies how many replicas must respond for an operation to be considered
     a success.  By default, ``ONE`` is used for all operations.
     """
 
@@ -247,7 +247,7 @@ def has_checksumming_support(cls, version):
 
 class WriteType(object):
     """
-    For usage with :class:`.RetryPolicy`, this describe a type
+    For usage with :class:`.RetryPolicy`, this describes a type
     of write operation.
     """
 
@@ -272,7 +272,7 @@ class WriteType(object):
     COUNTER = 3
     """
     A counter write (for one or multiple partition keys). Such writes should
-    not be replayed in order to avoid overcount.
+    not be replayed in order to avoid over counting.
     """
 
     BATCH_LOG = 4
@@ -283,7 +283,7 @@ class WriteType(object):
 
     CAS = 5
     """
-    A lighweight-transaction write, such as "DELETE ... IF EXISTS".
+    A lightweight-transaction write, such as "DELETE ... IF EXISTS".
     """
 
     VIEW = 6

cassandra/auth.py

@@ -77,7 +77,7 @@ class Authenticator(object):
 
     3) When the server indicates that authentication is successful,
     :meth:`~.on_authentication_success` will be called a token string that
-    that the server may optionally have sent.
+    the server may optionally have sent.
 
     The exact nature of the negotiation between the client and server is specific
     to the authentication mechanism configured server-side.
@@ -90,7 +90,7 @@ class Authenticator(object):
 
     def initial_response(self):
         """
-        Returns an message to send to the server to initiate the SASL handshake.
+        Returns a message to send to the server to initiate the SASL handshake.
         :const:`None` may be returned to send an empty message.
         """
         return None

cassandra/cluster.py

@@ -101,7 +101,7 @@
     from cassandra.io.eventletreactor import EventletConnection
 # PYTHON-1364
 #
-# At the moment eventlet initialization is chucking AttributeErrors due to it's dependence on pyOpenSSL
+# At the moment eventlet initialization is chucking AttributeErrors due to its dependence on pyOpenSSL
 # and some changes in Python 3.12 which have some knock-on effects there.
 except (ImportError, AttributeError):
     EventletConnection = None
@@ -174,7 +174,7 @@ def _connection_reduce_fn(val,import_fn):
 DefaultConnection = conn_class
 
 # Forces load of utf8 encoding module to avoid deadlock that occurs
-# if code that is being imported tries to import the module in a seperate
+# if code that is being imported tries to import the module in a separate
 # thread.
 # See http://bugs.python.org/issue10923
 "".encode('utf8')
@@ -1024,7 +1024,7 @@ def default_retry_policy(self, policy):
 
     application_version = ''
     """
-    A string identifiying this application's version to Insights
+    A string identifying this application's version to Insights
     """
 
     cloud = None
@@ -1154,7 +1154,7 @@ def __init__(self,
                  column_encryption_policy=None):
         """
         ``executor_threads`` defines the number of threads in a pool for handling asynchronous tasks such as
-        extablishing connection pools or refreshing metadata.
+        establishing connection pools or refreshing metadata.
 
         Any of the mutable Cluster attributes may be set as keyword arguments to the constructor.
         """
@@ -1461,7 +1461,7 @@ def register_user_type(self, keyspace, user_type, klass):
         for.
 
         `klass` should be a class with attributes whose names match the
-        fields of the user-defined type.  The constructor must accepts kwargs
+        fields of the user-defined type.  The constructor must accept kwargs
         for each of the fields in the UDT.
 
         This method should only be called after the type has been created
@@ -3168,7 +3168,7 @@ def prepare_on_all_hosts(self, query, excluded_host, keyspace=None):
                     continue
 
                 if request_id is None:
-                    # the error has already been logged by ResponsFuture
+                    # the error has already been logged by ResponseFuture
                     log.debug("Failed to prepare query for host %s: %r",
                               host, future._errors.get(host))
                     continue
@@ -3965,7 +3965,7 @@ def _handle_status_change(self, event):
         elif change_type == "DOWN":
             # Note that there is a slight risk we can receive the event late and thus
             # mark the host down even though we already had reconnected successfully.
-            # But it is unlikely, and don't have too much consequence since we'll try reconnecting
+            # This is unlikely, and will not have much consequence because we'll try reconnecting
             # right away, so we favor the detection to make the Host.is_up more accurate.
             if host is not None:
                 # this will be run by the scheduler
@@ -4447,7 +4447,7 @@ def _on_speculative_execute(self):
             # PYTHON-836, the speculative queries must be after
             # the query is sent from the main thread, otherwise the
             # query from the main thread may raise NoHostAvailable
-            # if the _query_plan has been exhausted by the specualtive queries.
+            # if the _query_plan has been exhausted by the speculative queries.
             # This also prevents a race condition accessing the iterator.
             # We reschedule this call until the main thread has succeeded
             # making a query
@@ -4559,7 +4559,7 @@ def warnings(self):
 
         Ensure the future is complete before trying to access this property
         (call :meth:`.result()`, or after callback is invoked).
-        Otherwise it may throw if the response has not been received.
+        Otherwise, it may throw if the response has not been received.
         """
         # TODO: When timers are introduced, just make this wait
         if not self._event.is_set():
@@ -4575,7 +4575,7 @@ def custom_payload(self):
 
         Ensure the future is complete before trying to access this property
         (call :meth:`.result()`, or after callback is invoked).
-        Otherwise it may throw if the response has not been received.
+        Otherwise, it may throw if the response has not been received.
 
         :return: :ref:`custom_payload`.
         """
@@ -5285,7 +5285,7 @@ def cancel_continuous_paging(self):
         try:
             self.response_future._continuous_paging_session.cancel()
         except AttributeError:
-            raise DriverException("Attempted to cancel paging with no active session. This is only for requests with ContinuousdPagingOptions.")
+            raise DriverException("Attempted to cancel paging with no active session. This is only for requests with ContinuousPagingOptions.")
 
     @property
     def was_applied(self):
@@ -5296,7 +5296,7 @@ def was_applied(self):
         a :class:`.query.BatchStatement` containing LWT. In the latter case either all the batch
         succeeds or fails.
 
-        Only valid when one of the of the internal row factories is in use.
+        Only valid when one of the internal row factories is in use.
         """
         if self.response_future.row_factory not in (named_tuple_factory, dict_factory, tuple_factory):
             raise RuntimeError("Cannot determine LWT result with row factory %s" % (self.response_future.row_factory,))

cassandra/connection.py

@@ -825,7 +825,7 @@ def initialize_reactor(cls):
     @classmethod
     def handle_fork(cls):
         """
-        Called after a forking.  This should cleanup any remaining reactor state
+        Called after a forking.  This should clean up any remaining reactor state
         from the parent process.
         """
         pass
@@ -862,7 +862,7 @@ def _build_ssl_context_from_options(self):
         ssl_context_opt_names = ['ssl_version', 'cert_reqs', 'check_hostname', 'keyfile', 'certfile', 'ca_certs', 'ciphers']
         opts = {k:self.ssl_options.get(k, None) for k in ssl_context_opt_names if k in self.ssl_options}
 
-        # Python >= 3.10 requires either PROTOCOL_TLS_CLIENT or PROTOCOL_TLS_SERVER so we'll get ahead of things by always
+        # Python >= 3.10 requires either PROTOCOL_TLS_CLIENT or PROTOCOL_TLS_SERVER, so we'll get ahead of things by always
         # being explicit
         ssl_version = opts.get('ssl_version', None) or ssl.PROTOCOL_TLS_CLIENT
         cert_reqs = opts.get('cert_reqs', None) or ssl.CERT_REQUIRED
@@ -891,7 +891,7 @@ def _wrap_socket_from_context(self):
         opts = {k:self.ssl_options.get(k, None) for k in wrap_socket_opt_names if k in self.ssl_options}
 
         # PYTHON-1186: set the server_hostname only if the SSLContext has
-        # check_hostname enabled and it is not already provided by the EndPoint ssl options
+        # check_hostname enabled, and it is not already provided by the EndPoint ssl options
         #opts['server_hostname'] = self.endpoint.address
         if (self.ssl_context.check_hostname and 'server_hostname' not in opts):
             server_hostname = self.endpoint.address
@@ -1210,11 +1210,11 @@ def process_io_buffer(self):
 
             if not self._current_frame or pos < self._current_frame.end_pos:
                 if self._is_checksumming_enabled and self._io_buffer.readable_io_bytes():
-                    # We have a multi-segments message and we need to read more
+                    # We have a multi-segments message, and we need to read more
                     # data to complete the current cql frame
                     continue
 
-                # we don't have a complete header yet or we
+                # we don't have a complete header yet, or we
                 # already saw a header, but we don't have a
                 # complete message yet
                 return
@@ -1713,7 +1713,7 @@ def run(self):
                         else:
                             log.debug("Cannot send heartbeat message on connection (%s) to %s",
                                       id(connection), connection.endpoint)
-                            # make sure the owner sees this defunt/closed connection
+                            # make sure the owner sees this defunct/closed connection
                             owner.return_connection(connection)
                     self._raise_if_stopped()
 

cassandra/cqlengine/connection.py

@@ -88,7 +88,7 @@ def from_session(cls, name, session):
         return instance
 
     def setup(self):
-        """Setup the connection"""
+        """Set up the connection"""
         global cluster, session
 
         if 'username' in self.cluster_options or 'password' in self.cluster_options:
@@ -134,7 +134,7 @@ def setup_session(self):
 
     def handle_lazy_connect(self):
 
-        # if lazy_connect is False, it means the cluster is setup and ready
+        # if lazy_connect is False, it means the cluster is set up and ready
         # No need to acquire the lock
         if not self.lazy_connect:
             return
@@ -280,7 +280,7 @@ def set_session(s):
     try:
         conn = get_connection()
     except CQLEngineException:
-        # no default connection set; initalize one
+        # no default connection set; initialize one
         register_connection('default', session=s, default=True)
         conn = get_connection()
     else:
@@ -316,7 +316,7 @@ def setup(
         retry_connect=False,
         **kwargs):
     """
-    Setup a the driver connection used by the mapper
+    Set up the driver connection used by the mapper
 
     :param list hosts: list of hosts, (``contact_points`` for :class:`cassandra.cluster.Cluster`)
     :param str default_keyspace: The default keyspace to use

cassandra/cqlengine/management.py

@@ -525,7 +525,7 @@ def _drop_table(model, connection=None):
 
     connection = connection or model._get_connection()
 
-    # don't try to delete non existant tables
+    # don't try to delete non existent tables
     meta = get_cluster(connection).metadata
 
     ks_name = model._get_keyspace()

cassandra/cqlengine/models.py

@@ -183,7 +183,7 @@ def __call__(self, *args, **kwargs):
 
 class IfNotExistsDescriptor(object):
     """
-    return a query set descriptor with a if_not_exists flag specified
+    return a query set descriptor with an if_not_exists flag specified
     """
     def __get__(self, instance, model):
         if instance:
@@ -201,7 +201,7 @@ def __call__(self, *args, **kwargs):
 
 class IfExistsDescriptor(object):
     """
-    return a query set descriptor with a if_exists flag specified
+    return a query set descriptor with an if_exists flag specified
     """
     def __get__(self, instance, model):
         if instance:
@@ -398,7 +398,7 @@ def __init__(self, **values):
         self._values = {}
         for name, column in self._columns.items():
             # Set default values on instantiation. Thanks to this, we don't have
-            # to wait anylonger for a call to validate() to have CQLengine set
+            # to wait any longer for a call to validate() to have CQLengine set
             # default columns values.
             column_default = column.get_default() if column.has_default else None
             value = values.get(name, column_default)

cassandra/cqlengine/query.py

@@ -938,7 +938,7 @@ def fetch_size(self, v):
 
     def allow_filtering(self):
         """
-        Enables the (usually) unwise practive of querying on a clustering key without also defining a partition key
+        Enables the (usually) unwise practice of querying on a clustering key without also defining a partition key
         """
         clone = copy.deepcopy(self)
         clone._allow_filtering = True
@@ -1417,7 +1417,7 @@ def update(self):
         prior to calling this.
         """
         if self.instance is None:
-            raise CQLEngineException("DML Query intance attribute is None")
+            raise CQLEngineException("DML Query instance attribute is None")
         assert type(self.instance) == self.model
         null_clustering_key = False if len(self.instance._clustering_keys) == 0 else True
         static_changed_only = True
@@ -1429,7 +1429,7 @@ def update(self):
         updated_columns = set()
         # get defined fields and their column names
         for name, col in self.model._columns.items():
-            # if clustering key is null, don't include non static columns
+            # if clustering key is null, don't include non-static columns
             if null_clustering_key and not col.static and not col.partition_key:
                 continue
             if not col.is_primary_key:
@@ -1448,7 +1448,7 @@ def update(self):
 
         if statement.assignments:
             for name, col in self.model._primary_keys.items():
-                # only include clustering key if clustering key is not null, and non static columns are changed to avoid cql error
+                # only include clustering key if clustering key is not null, and non-static columns are changed to avoid cql error
                 if (null_clustering_key or static_changed_only) and (not col.partition_key):
                     continue
                 statement.add_where(col, EqualsOperator(), getattr(self.instance, name))
@@ -1468,7 +1468,7 @@ def save(self):
         prior to calling this.
         """
         if self.instance is None:
-            raise CQLEngineException("DML Query intance attribute is None")
+            raise CQLEngineException("DML Query instance attribute is None")
         assert type(self.instance) == self.model
 
         nulled_fields = set()

cassandra/cqlengine/statements.py

@@ -550,7 +550,7 @@ def get_context(self):
 
     def add_conditional_clause(self, clause):
         """
-        Adds a iff clause to this statement
+        Adds an iff clause to this statement
 
         :param clause: The clause that will be added to the iff statement
         :type clause: ConditionalClause
@@ -575,7 +575,7 @@ def update_context_id(self, i):
     @property
     def timestamp_normalized(self):
         """
-        we're expecting self.timestamp to be either a long, int, a datetime, or a timedelta
+        We're expecting self.timestamp to be either a long, int, a datetime, or a timedelta
         :return:
         """
         if not self.timestamp:

cassandra/marshal.py

@@ -122,8 +122,8 @@ def vints_pack(values):
             num_extra_bytes = 0
             num_bits = v.bit_length()
             # We need to reserve (num_extra_bytes+1) bits in the first byte
-            # ie. with 1 extra byte, the first byte needs to be something like '10XXXXXX' # 2 bits reserved
-            # ie. with 8 extra bytes, the first byte needs to be '11111111'  # 8 bits reserved
+            # i.e. with 1 extra byte, the first byte needs to be something like '10XXXXXX' # 2 bits reserved
+            # i.e. with 8 extra bytes, the first byte needs to be '11111111'  # 8 bits reserved
             reserved_bits = num_extra_bytes + 1
             while num_bits > (8-(reserved_bits)):
                 num_extra_bytes += 1
@@ -167,8 +167,8 @@ def uvint_pack(val):
         num_extra_bytes = 0
         num_bits = v.bit_length()
         # We need to reserve (num_extra_bytes+1) bits in the first byte
-        # ie. with 1 extra byte, the first byte needs to be something like '10XXXXXX' # 2 bits reserved
-        # ie. with 8 extra bytes, the first byte needs to be '11111111'  # 8 bits reserved
+        # i.e. with 1 extra byte, the first byte needs to be something like '10XXXXXX' # 2 bits reserved
+        # i.e. with 8 extra bytes, the first byte needs to be '11111111'  # 8 bits reserved
         reserved_bits = num_extra_bytes + 1
         while num_bits > (8-(reserved_bits)):
             num_extra_bytes += 1

cassandra/metrics.py

@@ -185,7 +185,7 @@ def get_stats(self):
     def set_stats_name(self, stats_name):
         """
         Set the metrics stats name.
-        The stats_name is a string used to access the metris through scales: scales.getStats()[<stats_name>]
+        The stats_name is a string used to access the metrics through scales: scales.getStats()[<stats_name>]
         Default is 'cassandra-<num>'.
         """