Issue #25523: Further a-to-an corrections.
diff --git a/Doc/library/asyncio-protocol.rst b/Doc/library/asyncio-protocol.rst
index 698d2bf..e714488 100644
--- a/Doc/library/asyncio-protocol.rst
+++ b/Doc/library/asyncio-protocol.rst
@@ -148,7 +148,7 @@
high-water limit. Neither *high* nor *low* can be negative.
The defaults are implementation-specific. If only the
- high-water limit is given, the low-water limit defaults to a
+ high-water limit is given, the low-water limit defaults to an
implementation-specific value less than or equal to the
high-water limit. Setting *high* to zero forces *low* to zero as
well, and causes :meth:`pause_writing` to be called whenever the
diff --git a/Doc/library/contextlib.rst b/Doc/library/contextlib.rst
index e567549..2b2cece 100644
--- a/Doc/library/contextlib.rst
+++ b/Doc/library/contextlib.rst
@@ -142,7 +142,7 @@
is hardwired to stdout.
For example, the output of :func:`help` normally is sent to *sys.stdout*.
- You can capture that output in a string by redirecting the output to a
+ You can capture that output in a string by redirecting the output to an
:class:`io.StringIO` object::
f = io.StringIO()
diff --git a/Doc/library/email.parser.rst b/Doc/library/email.parser.rst
index ec74fe0..177adc6 100644
--- a/Doc/library/email.parser.rst
+++ b/Doc/library/email.parser.rst
@@ -146,7 +146,7 @@
methods on file-like objects.
The text contained in *fp* must be formatted as a block of :rfc:`2822`
- style headers and header continuation lines, optionally preceded by a
+ style headers and header continuation lines, optionally preceded by an
envelope header. The header block is terminated either by the end of the
data or by a blank line. Following the header block is the body of the
message (which may contain MIME-encoded subparts).
@@ -189,7 +189,7 @@
methods on file-like objects.
The bytes contained in *fp* must be formatted as a block of :rfc:`2822`
- style headers and header continuation lines, optionally preceded by a
+ style headers and header continuation lines, optionally preceded by an
envelope header. The header block is terminated either by the end of the
data or by a blank line. Following the header block is the body of the
message (which may contain MIME-encoded subparts, including subparts
diff --git a/Doc/library/gzip.rst b/Doc/library/gzip.rst
index ce02077..355cf9c 100644
--- a/Doc/library/gzip.rst
+++ b/Doc/library/gzip.rst
@@ -64,7 +64,7 @@
method. At least one of *fileobj* and *filename* must be given a non-trivial
value.
- The new class instance is based on *fileobj*, which can be a regular file, a
+ The new class instance is based on *fileobj*, which can be a regular file, an
:class:`io.BytesIO` object, or any other object which simulates a file. It
defaults to ``None``, in which case *filename* is opened to provide a file
object.
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst
index 08618fa..3305195 100644
--- a/Doc/library/pickle.rst
+++ b/Doc/library/pickle.rst
@@ -192,7 +192,7 @@
number is specified, :data:`HIGHEST_PROTOCOL` is selected.
The *file* argument must have a write() method that accepts a single bytes
- argument. It can thus be an on-disk file opened for binary writing, a
+ argument. It can thus be an on-disk file opened for binary writing, an
:class:`io.BytesIO` instance, or any other custom object that meets this
interface.
@@ -288,7 +288,7 @@
number is specified, :data:`HIGHEST_PROTOCOL` is selected.
The *file* argument must have a write() method that accepts a single bytes
- argument. It can thus be an on-disk file opened for binary writing, a
+ argument. It can thus be an on-disk file opened for binary writing, an
:class:`io.BytesIO` instance, or any other custom object that meets this
interface.
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index 80d5811..8577c3c 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -762,7 +762,7 @@
.. function:: sethostname(name)
- Set the machine's hostname to *name*. This will raise a
+ Set the machine's hostname to *name*. This will raise an
:exc:`OSError` if you don't have enough rights.
Availability: Unix.
@@ -794,7 +794,7 @@
.. function:: if_indextoname(if_index)
- Return a network interface name corresponding to a
+ Return a network interface name corresponding to an
interface index number.
:exc:`OSError` if no interface with the given index exists.
diff --git a/Doc/library/tokenize.rst b/Doc/library/tokenize.rst
index bd6b121..c9cb518 100644
--- a/Doc/library/tokenize.rst
+++ b/Doc/library/tokenize.rst
@@ -41,7 +41,7 @@
returned as a :term:`named tuple` with the field names:
``type string start end line``.
- The returned :term:`named tuple` has a additional property named
+ The returned :term:`named tuple` has an additional property named
``exact_type`` that contains the exact operator type for
:data:`token.OP` tokens. For all other token types ``exact_type``
equals the named tuple ``type`` field.
diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 1930f78..a8d9f53 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -464,7 +464,7 @@
.. versionadded:: 3.1
Unittest supports skipping individual test methods and even whole classes of
-tests. In addition, it supports marking a test as a "expected failure," a test
+tests. In addition, it supports marking a test as an "expected failure," a test
that is broken and will fail, but shouldn't be counted as a failure on a
:class:`TestResult`.
diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst
index cd4690f..74f3c1f 100644
--- a/Doc/library/urllib.request.rst
+++ b/Doc/library/urllib.request.rst
@@ -1322,7 +1322,7 @@
.. method:: retrieve(url, filename=None, reporthook=None, data=None)
Retrieves the contents of *url* and places it in *filename*. The return value
- is a tuple consisting of a local filename and either a
+ is a tuple consisting of a local filename and either an
:class:`email.message.Message` object containing the response headers (for remote
URLs) or ``None`` (for local URLs). The caller must then open and read the
contents of *filename*. If *filename* is not given and the URL refers to a
diff --git a/Doc/library/xml.dom.minidom.rst b/Doc/library/xml.dom.minidom.rst
index dcd030c..6762e91 100644
--- a/Doc/library/xml.dom.minidom.rst
+++ b/Doc/library/xml.dom.minidom.rst
@@ -54,7 +54,7 @@
.. function:: parseString(string, parser=None)
- Return a :class:`Document` that represents the *string*. This method creates a
+ Return a :class:`Document` that represents the *string*. This method creates an
:class:`io.StringIO` object for the string and passes that on to :func:`parse`.
Both functions return a :class:`Document` object representing the content of the
diff --git a/Doc/library/zlib.rst b/Doc/library/zlib.rst
index aea0e79..230fdfe 100644
--- a/Doc/library/zlib.rst
+++ b/Doc/library/zlib.rst
@@ -30,7 +30,7 @@
.. function:: adler32(data[, value])
- Computes a Adler-32 checksum of *data*. (An Adler-32 checksum is almost as
+ Computes an Adler-32 checksum of *data*. (An Adler-32 checksum is almost as
reliable as a CRC32 but can be computed much more quickly.) If *value* is
present, it is used as the starting value of the checksum; otherwise, a fixed
default value is used. This allows computing a running checksum over the