Author: Armin Rigo <ar...@tunes.org>
Branch: extradoc
Changeset: r5657:46af6a95b74c
Date: 2016-07-19 18:18 +0200
http://bitbucket.org/pypy/extradoc/changeset/46af6a95b74c/
Log: More tweaks
diff --git a/talk/ep2016/slides.rst b/talk/ep2016/slides.rst
--- a/talk/ep2016/slides.rst
+++ b/talk/ep2016/slides.rst
@@ -1,5 +1,5 @@
====================================================
-CFFI and PyPy
+CFFI (and PyPy)
====================================================
.. raw:: latex
@@ -16,6 +16,8 @@
CFFI
====
+* created in 2012
+
* successful project according to PyPI
* 3.4 million downloads for January
@@ -30,7 +32,7 @@
PyPy
====
-* harder to say...
+* success: harder to say for sure
* more later
@@ -47,7 +49,7 @@
* CFFI = C Foreign Function Interface
-* shares ideas from Cython, ctypes, and LuaJIT's FFI
+* shares ideas from Cython, ctypes, LuaJIT's FFI, SWIG...
CFFI demo
@@ -55,7 +57,7 @@
::
- | $ man getpwuid
+ | $ man getpwnam
|
@@ -173,6 +175,8 @@
print lib.getpwnam("username").pw_uid
+* That's all folks
+
CFFI demo
=========
@@ -183,15 +187,17 @@
* ``lib`` gives access to all functions from the cdef
+ - like ``lib.getpwnam()``
+
* ``ffi`` gives access to a few general helpers
-ffi/ffibuilder.cdef()
+ffibuilder.cdef()
=====================
::
- | ffi/ffibuilder.cdef("""
+ | ffibuilder.cdef("""
| | int foo1(int a, int b);
@@ -242,21 +248,21 @@
::
- | >>> p = lib.getpwnam("root")
+ | >>> q = lib.getpwnam("root")
- | >>> p
+ | >>> q
| <cdata 'struct passwd *' 0x12345678>
|
- | >>> ffi.cast("void *", p)
+ | >>> ffi.cast("void *", q)
| <cdata 'void *' 0x12345678>
|
- | >>> int(ffi.cast("intptr_t", p))
+ | >>> int(ffi.cast("intptr_t", q))
| 305419896
@@ -298,7 +304,9 @@
::
- | >>> h1 = ffi.new_handle(some_object)
+ | >>> x = X()
+
+ | >>> h1 = ffi.new_handle(x)
| >>> h1
@@ -384,9 +392,9 @@
| $ pypy
- | Python 2.7.10 (7e8df3df9641, Jun 28 2016, 23:19:52)
+ | Python 2.7.10 (7e8df3df9641, Jun 28 2016)
- | [PyPy 5.3.1 with GCC 6.1.1 20160602] on linux2
+ | [PyPy 5.3.1 with GCC 6.1.1] on linux2
| Type "help", "copyright", "credits" or
@@ -400,23 +408,9 @@
PyPy
====
-* run ``pypy my_program.py``
+* run ``pypy my_program.py`` instead of ``python my_program.py``
-* starts working like an interpreter
-
-* then a Just-in-Time Compiler kicks in
-
-* generate and execute machine code from the Python program
-
-* good or great speed-ups for the majority of long-running code
-
-
-PyPy
-====
-
-* different techniques than CPython also for "garbage collection"
-
-* works very well (arguably better than CPython's reference counting)
+* contains a JIT compiler
PyPy: Garbage Collection
_______________________________________________
pypy-commit mailing list
pypy-commit@python.org
https://mail.python.org/mailman/listinfo/pypy-commit
