This function can also be used to execute arbitrary code objects (such as
those created by :func:`compile`). In this case pass a code object instead
of a string. If the code object has been compiled with ``'exec'`` as the
- *kind* argument, :func:`eval`\'s return value will be ``None``.
+ *mode* argument, :func:`eval`\'s return value will be ``None``.
Hints: dynamic execution of statements is supported by the :keyword:`exec`
statement. Execution of statements from a file is supported by the
value is ``None``.
*key* specifies a function of one argument that is used to extract a comparison
- key from each list element: ``key=str.lower``. The default value is ``None``.
+ key from each list element: ``key=str.lower``. The default value is ``None``
+ (compare the elements directly).
*reverse* is a boolean value. If set to ``True``, then the list elements are
sorted as if each comparison were reversed.
The debugger is extensible --- it is actually defined as the class :class:`Pdb`.
This is currently undocumented but easily understood by reading the source. The
-extension interface uses the modules :mod:`bdb` (undocumented) and :mod:`cmd`.
+extension interface uses the modules :mod:`bdb` and :mod:`cmd`.
The debugger's prompt is ``(Pdb)``. Typical usage to run a program under control
of the debugger is::
.. method:: str.format(*args, **kwargs)
- Perform a string formatting operation. The *format_string* argument can
- contain literal text or replacement fields delimited by braces ``{}``. Each
- replacement field contains either the numeric index of a positional argument,
- or the name of a keyword argument. Returns a copy of *format_string* where
- each replacement field is replaced with the string value of the corresponding
- argument.
+ Perform a string formatting operation. The string on which this method is
+ called can contain literal text or replacement fields delimited by braces
+ ``{}``. Each replacement field contains either the numeric index of a
+ positional argument, or the name of a keyword argument. Returns a copy of
+ the string where each replacement field is replaced with the string value of
+ the corresponding argument.
>>> "The sum of 1 + 2 is {0}".format(1+2)
'The sum of 1 + 2 is 3'