The term "free variable" has unfortunately become genuinely
ambiguous over the years (presumably due to the names of
some relevant code object instance attributes).
While we can't eliminate that ambiguity at this late date, we can
at least alert people to the potential ambiguity by describing
both the formal meaning of the term and the common
alternative use as a direct synonym for "closure variable".
---------
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
* Add API to allow extensions to set callback function on creation and destruction of PyCodeObject
Co-authored-by: Ye11ow-Flash <janshah@cs.stonybrook.edu>
I think that none of these API calls can fail, but only few of them are
documented as such. Add the sentence "This function always succeeds" (which is
the same already used e.g. by PyNumber_Check) to all of them.
* bpo-36540: Documentation for PEP570 - Python positional only arguments
* fixup! bpo-36540: Documentation for PEP570 - Python positional only arguments
* Update reference for compound statements
* Apply suggestions from Carol
Co-Authored-By: Carol Willing <carolcode@willingconsulting.com>
* Update Doc/tutorial/controlflow.rst
Co-Authored-By: Carol Willing <carolcode@willingconsulting.com>
* Add extra bullet point and minor edits
svn+ssh://pythondev@svn.python.org/python/trunk
........
r72487 | jeffrey.yasskin | 2009-05-08 17:51:06 -0400 (Fri, 08 May 2009) | 7 lines
PyCode_NewEmpty:
Most uses of PyCode_New found by http://www.google.com/codesearch?q=PyCode_New
are trying to build an empty code object, usually to put it in a dummy frame
object. This patch adds a PyCode_NewEmpty wrapper which lets the user specify
just the filename, function name, and first line number, instead of also
requiring lots of code internals.
........
r72488 | jeffrey.yasskin | 2009-05-08 18:23:21 -0400 (Fri, 08 May 2009) | 13 lines
Issue 5954, PyFrame_GetLineNumber:
Most uses of PyCode_Addr2Line
(http://www.google.com/codesearch?q=PyCode_Addr2Line) are just trying to get
the line number of a specified frame, but there's no way to do that directly.
Forcing people to go through the code object makes them know more about the
guts of the interpreter than they should need.
The remaining uses of PyCode_Addr2Line seem to be getting the line from a
traceback (for example,
http://www.google.com/codesearch/p?hl=en#u_9_nDrchrw/pygame-1.7.1release/src/base.c&q=PyCode_Addr2Line),
which is replaced by the tb_lineno field. So we may be able to deprecate
PyCode_Addr2Line entirely for external use.
........
r72879 | jeffrey.yasskin | 2009-05-23 19:23:01 -0400 (Sat, 23 May 2009) | 14 lines
Issue #6042:
lnotab-based tracing is very complicated and isn't documented very well. There
were at least 3 comment blocks purporting to document co_lnotab, and none did a
very good job. This patch unifies them into Objects/lnotab_notes.txt which
tries to completely capture the current state of affairs.
I also discovered that we've attached 2 layers of patches to the basic tracing
scheme. The first layer avoids jumping to instructions that don't start a line,
to avoid problems in if statements and while loops. The second layer
discovered that jumps backward do need to trace at instructions that don't
start a line, so it added extra lnotab entries for 'while' and 'for' loops, and
added a special case for backward jumps within the same line. I replaced these
patches by just treating forward and backward jumps differently.
........
Alyssa Coghlan
Rafael Fontenelle
Bogdan Romanyuk
Serhiy Storchaka
Erlend E. Aasland
da-woods
Victor Stinner
Carl Meyer
Petr Viktorin
Max Bachmann
Itamar Ostricher
C.A.M. Gerlach
Ken Jin
Ken Jin
Mark Shannon
Hugo van Kemenade
Ammar Askar
Antonio Cuni
cocoatomo
Steve Dower
Pablo Galindo
Steve Dower
Stéphane Wirtel
Tommy Beadle
Martin Panter
Eli Bendersky
Meador Inge
Georg Brandl
Alexandre Vassalotti