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author | Fred Drake <fdrake@acm.org> | 1999-06-23 13:33:40 (GMT) |
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committer | Fred Drake <fdrake@acm.org> | 1999-06-23 13:33:40 (GMT) |
commit | b742a42bc0c9454c8eccc8c2f1ad35928271f543 (patch) | |
tree | 79313cd295d61fee049387ff973d8a3a84cb1a2c /Doc/lib/libcodeop.tex | |
parent | cab9476330075dc86cf3022a0c51465c0fd0abe2 (diff) | |
download | cpython-b742a42bc0c9454c8eccc8c2f1ad35928271f543.zip cpython-b742a42bc0c9454c8eccc8c2f1ad35928271f543.tar.gz cpython-b742a42bc0c9454c8eccc8c2f1ad35928271f543.tar.bz2 |
Two more from Moshe!
Diffstat (limited to 'Doc/lib/libcodeop.tex')
-rw-r--r-- | Doc/lib/libcodeop.tex | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Doc/lib/libcodeop.tex b/Doc/lib/libcodeop.tex new file mode 100644 index 0000000..a0b58a5 --- /dev/null +++ b/Doc/lib/libcodeop.tex @@ -0,0 +1,45 @@ +% LaTeXed from excellent doc-string. +\section{\module{codeop} --- + Compile Python code} + +\declaremodule{standard}{codeop} +\sectionauthor{Moshe Zadka}{mzadka@geocities.com} +\modulesynopsis{Compile (possibly incomplete) Python code.} + +The \module{codeop} module provides a function to compile Python code +with hints on whether it certainly complete, possible complete or +definitely incomplete. This is used by the \refmodule{code} module +and should not normally be used directly. + +The \module{codeop} module defines the following function: + +\begin{funcdesc}{compile_command} + {source\optional{, filename\optional{, symbol}}} + +Try to compile \var{source}, which should be a string of Python +code. Return a code object if \var{source} is valid +Python code. In that case, the filename attribute of the code object +will be \var{filename}, which defaults to \code{'<input>'}. + +Return \code{None} if \var{source} is \emph{not} valid Python +code, but is a prefix of valid Python code. + +Raise an exception if there is a problem with \var{source}: +\begin{itemize} + \item \exception{SyntaxError} + if there is invalid Python syntax. + \item \exception{OverflowError} + if there is an invalid numeric constant. +\end{itemize} + +The \var{symbol} argument means whether to compile it as a statement +(\code{'single'}, the default) or as an expression (\code{'eval'}). + +\strong{Caveat:} +It is possible (but not likely) that the parser stops parsing +with a successful outcome before reaching the end of the source; +in this case, trailing symbols may be ignored instead of causing an +error. For example, a backslash followed by two newlines may be +followed by arbitrary garbage. This will be fixed once the API +for the parser is better. +\end{funcdesc} |