Change double hyphens (en dashes) to em (longer) dashes

Doc/howto/clinic.rst

@@ -30,7 +30,7 @@ Argument Clinic's primary goal
 is to take over responsibility for all argument parsing code
 inside CPython.  This means that, when you convert a function
 to work with Argument Clinic, that function should no longer
-do any of its own argument parsing--the code generated by
+do any of its own argument parsing—the code generated by
 Argument Clinic should be a "black box" to you, where CPython
 calls in at the top, and your code gets called at the bottom,
 with ``PyObject *args`` (and maybe ``PyObject *kwargs``)
@@ -43,12 +43,12 @@ redundant information in a surprising number of places.
 When you use Argument Clinic, you don't have to repeat yourself.
 
 Obviously, no one would want to use Argument Clinic unless
-it's solving their problem--and without creating new problems of
+it's solving their problem—and without creating new problems of
 its own.
 So it's paramount that Argument Clinic generate correct code.
 It'd be nice if the code was faster, too, but at the very least
 it should not introduce a major speed regression.  (Eventually Argument
-Clinic *should* make a major speedup possible--we could
+Clinic *should* make a major speedup possible—we could
 rewrite its code generator to produce tailor-made argument
 parsing code, rather than calling the general-purpose CPython
 argument parsing library.  That would make for the fastest
@@ -113,7 +113,7 @@ line.  However, if the input hasn't changed, the output won't change either.
 
 You should never modify the output portion of an Argument Clinic block.  Instead,
 change the input until it produces the output you want.  (That's the purpose of the
-checksum--to detect if someone changed the output, as these edits would be lost
+checksum—to detect if someone changed the output, as these edits would be lost
 the next time Argument Clinic writes out fresh output.)
 
 For the sake of clarity, here's the terminology we'll use with Argument Clinic:
@@ -166,7 +166,7 @@ Let's dive in!
    or if it has multiple calls to :c:func:`PyArg_ParseTuple`,
    you should choose a different function.  Argument Clinic *does*
    support all of these scenarios.  But these are advanced
-   topics--let's do something simpler for your first function.
+   topics—let's do something simpler for your first function.
 
    Also, if the function has multiple calls to :c:func:`PyArg_ParseTuple`
    or :c:func:`PyArg_ParseTupleAndKeywords` where it supports different
@@ -188,7 +188,7 @@ Let's dive in!
 
    If the old docstring had a first line that looked like a function
    signature, throw that line away.  (The docstring doesn't need it
-   anymore--when you use ``help()`` on your builtin in the future,
+   anymore—when you use ``help()`` on your builtin in the future,
    the first line will be built automatically based on the function's
    signature.)
 
@@ -209,7 +209,7 @@ Let's dive in!
 6. Above the docstring, enter the name of the function, followed
    by a blank line.  This should be the Python name of the function,
    and should be the full dotted path
-   to the function--it should start with the name of the module,
+   to the function—it should start with the name of the module,
    include any sub-modules, and if the function is a method on
    a class it should include the class name too.
 
@@ -275,7 +275,7 @@ Let's dive in!
    What's a "converter"?  It establishes both the type
    of the variable used in C, and the method to convert the Python
    value into a C value at runtime.
-   For now you're going to use what's called a "legacy converter"--a
+   For now you're going to use what's called a "legacy converter"—a
    convenience syntax intended to make porting old code into Argument
    Clinic easier.
 
@@ -424,7 +424,7 @@ Let's dive in!
     (Argument Clinic always generates its format strings
     with a ``:`` followed by the name of the function.  If the
     existing code's format string ends with ``;``, to provide
-    usage help, this change is harmless--don't worry about it.)
+    usage help, this change is harmless—don't worry about it.)
 
     Third, for parameters whose format units require two arguments
     (like a length variable, or an encoding string, or a pointer
@@ -637,7 +637,7 @@ an optional argument on the *left* side of its required argument!
 Another example is ``curses.window.addch()``, which has a group of two
 arguments that must always be specified together.  (The arguments are
 called ``x`` and ``y``; if you call the function passing in ``x``,
-you must also pass in ``y``--and if you don't pass in ``x`` you may not
+you must also pass in ``y``—and if you don't pass in ``x`` you may not
 pass in ``y`` either.)
 
 In any case, the goal of Argument Clinic is to support argument parsing
@@ -888,7 +888,7 @@ Advanced converters
 Remember those format units you skipped for your first
 time because they were advanced?  Here's how to handle those too.
 
-The trick is, all those format units take arguments--either
+The trick is, all those format units take arguments—either
 conversion functions, or types, or strings specifying an encoding.
 (But "legacy converters" don't support arguments.  That's why we
 skipped them for your first function.)  The argument you specified
@@ -1002,7 +1002,7 @@ Using a return converter
 By default the impl function Argument Clinic generates for you returns ``PyObject *``.
 But your C function often computes some C type, then converts it into the ``PyObject *``
 at the last moment.  Argument Clinic handles converting your inputs from Python types
-into native C types--why not have it convert your return value from a native C type
+into native C types—why not have it convert your return value from a native C type
 into a Python type too?
 
 That's what a "return converter" does.  It changes your impl function to return
@@ -1184,7 +1184,7 @@ Writing a custom converter
 As we hinted at in the previous section... you can write your own converters!
 A converter is simply a Python class that inherits from ``CConverter``.
 The main purpose of a custom converter is if you have a parameter using
-the ``O&`` format unit--parsing this parameter means calling
+the ``O&`` format unit—parsing this parameter means calling
 a :c:func:`PyArg_ParseTuple` "converter function".
 
 Your converter class should be named ``*something*_converter``.
@@ -1226,7 +1226,7 @@ to specify in your subclass.  Here's the current list:
     The default value used to initialize the C variable when
     there is no default, but not specifying a default may
     result in an "uninitialized variable" warning.  This can
-    easily happen when using option groups--although
+    easily happen when using option groups—although
     properly-written code will never actually use this value,
     the variable does get passed in to the impl, and the
     C compiler will complain about the "use" of the
@@ -1402,7 +1402,7 @@ Let's start with defining some terminology:
     all of processing, even from Clinic blocks *after* the
 
   ``suppress``
-    The text is suppressed--thrown away.
+    The text is suppressed—thrown away.
 
 
 Clinic defines five new directives that let you reconfigure its output.

Doc/howto/cporting.rst

@@ -95,7 +95,7 @@ long/int Unification
 --------------------
 
 Python 3 has only one integer type, :func:`int`.  But it actually
-corresponds to Python 2's :func:`long` type--the :func:`int` type
+corresponds to Python 2's :func:`long` type—the :func:`int` type
 used in Python 2 was removed.  In the C-API, ``PyInt_*`` functions
 are replaced by their ``PyLong_*`` equivalents.
 

Doc/library/functions.rst

@@ -949,7 +949,7 @@ are always available.  They are listed here in alphabetical order.
    the list of supported encodings.
 
    *errors* is an optional string that specifies how encoding and decoding
-   errors are to be handled--this cannot be used in binary mode.
+   errors are to be handled—this cannot be used in binary mode.
    A variety of standard error handlers are available
    (listed under :ref:`error-handlers`), though any
    error handling name that has been registered with

Doc/library/hmac.rst

@@ -111,7 +111,7 @@ This module also provides the following helper function:
 
       If *a* and *b* are of different lengths, or if an error occurs,
       a timing attack could theoretically reveal information about the
-      types and lengths of *a* and *b*--but not their values.
+      types and lengths of *a* and *b*—but not their values.
 
 
    .. versionadded:: 3.3

Doc/library/pdb.rst

@@ -328,7 +328,7 @@ by the local file.
    return, jump, quit and their abbreviations) terminates the command list (as if
    that command was immediately followed by end). This is because any time you
    resume execution (even with a simple next or step), you may encounter another
-   breakpoint--which could have its own command list, leading to ambiguities about
+   breakpoint—which could have its own command list, leading to ambiguities about
    which list to execute.
 
    If you use the 'silent' command in the command list, the usual message about

Doc/library/shutil.rst

@@ -107,7 +107,7 @@ Directory and files operations
    If *follow_symlinks* is false, and *src* and *dst* both
    refer to symbolic links, :func:`copystat` will operate on
    the symbolic links themselves rather than the files the
-   symbolic links refer to--reading the information from the
+   symbolic links refer to—reading the information from the
    *src* symbolic link, and writing the information to the
    *dst* symbolic link.