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authorGuido van Rossum <guido@python.org>1993-10-18 17:59:42 (GMT)
committerGuido van Rossum <guido@python.org>1993-10-18 17:59:42 (GMT)
commita75d306e2b799aa891666899ca973bec82b2362b (patch)
tree47ac40c06d5483ca4ed5fed7ee716168a8fe6d6f /Doc
parentdb3165e6559c6b83373e7fed9cdf4371552a9a8e (diff)
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"exec" is now a statement. execfile() is obsolete.
(Also added a stub for "access".)
Diffstat (limited to 'Doc')
-rw-r--r--Doc/ref/ref6.tex39
-rw-r--r--Doc/ref6.tex39
2 files changed, 78 insertions, 0 deletions
diff --git a/Doc/ref/ref6.tex b/Doc/ref/ref6.tex
index cb257a3..086d49b 100644
--- a/Doc/ref/ref6.tex
+++ b/Doc/ref/ref6.tex
@@ -17,6 +17,8 @@ simple_stmt: expression_stmt
| continue_stmt
| import_stmt
| global_stmt
+ | access_stmt
+ | exec_stmt
\end{verbatim}
\section{Expression statements}
@@ -466,3 +468,40 @@ definition, function definition, or \verb\import\ statement.
restrictions, but programs should not abuse this freedom, as future
implementations may enforce them or silently change the meaning of the
program.)
+
+\section{The {\tt access} statement} \label{access}
+\stindex{access}
+
+\begin{verbatim}
+access_stmt: "access" ...
+\end{verbatim}
+
+This statement will be used in the future to control access to
+instance and class variables. Currently its syntax and effects are
+undefined; however the keyword \verb\access\ is a reserved word for
+the parser.
+
+\section{The {\tt exec} statement} \label{exec}
+\stindex{exec}
+
+\begin{verbatim}
+exec_stmt: "exec" expression ["in" expression ["," expression]]
+\end{verbatim}
+
+This statement supports dynamic execution of Python code. The first
+expression should evaluate to either a string, an open file object, or
+a code object. If it is a string, the string is parsed as a suite of
+Python statements which is then executed (unless a syntax error
+occurs). If it is an open file, the file is parsed until EOF and
+executed. If it is a code object, it is simply executed.
+
+In all cases, if the optional parts are omitted, the code is executed
+in the current scope. If only the first expression after \verb\in\ is
+specified, it should be a dictionary, which will be used for both the
+global and the local variables. If two expressions are given, both
+must be dictionaries and they are used for the global and local
+variables, respectively.
+
+Note: dynamic evaluation of expressions is supported by the built-in
+function \verb\eval\.
+
diff --git a/Doc/ref6.tex b/Doc/ref6.tex
index cb257a3..086d49b 100644
--- a/Doc/ref6.tex
+++ b/Doc/ref6.tex
@@ -17,6 +17,8 @@ simple_stmt: expression_stmt
| continue_stmt
| import_stmt
| global_stmt
+ | access_stmt
+ | exec_stmt
\end{verbatim}
\section{Expression statements}
@@ -466,3 +468,40 @@ definition, function definition, or \verb\import\ statement.
restrictions, but programs should not abuse this freedom, as future
implementations may enforce them or silently change the meaning of the
program.)
+
+\section{The {\tt access} statement} \label{access}
+\stindex{access}
+
+\begin{verbatim}
+access_stmt: "access" ...
+\end{verbatim}
+
+This statement will be used in the future to control access to
+instance and class variables. Currently its syntax and effects are
+undefined; however the keyword \verb\access\ is a reserved word for
+the parser.
+
+\section{The {\tt exec} statement} \label{exec}
+\stindex{exec}
+
+\begin{verbatim}
+exec_stmt: "exec" expression ["in" expression ["," expression]]
+\end{verbatim}
+
+This statement supports dynamic execution of Python code. The first
+expression should evaluate to either a string, an open file object, or
+a code object. If it is a string, the string is parsed as a suite of
+Python statements which is then executed (unless a syntax error
+occurs). If it is an open file, the file is parsed until EOF and
+executed. If it is a code object, it is simply executed.
+
+In all cases, if the optional parts are omitted, the code is executed
+in the current scope. If only the first expression after \verb\in\ is
+specified, it should be a dictionary, which will be used for both the
+global and the local variables. If two expressions are given, both
+must be dictionaries and they are used for the global and local
+variables, respectively.
+
+Note: dynamic evaluation of expressions is supported by the built-in
+function \verb\eval\.
+