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+ EDK II Python
+ ReadMe
+ Beta Release
+ 23 Mar. 2012
+
+
+1. OVERVIEW
+===========
+This document is devoted to general information on building and setup of the
+Python environment for UEFI 2.3, the invocation of the interpreter, and things
+that make working with Python easier.
+
+It is assumed that you already have either UDK2010 or a current snapshot of
+the EDK II sources from www.tianocore.org, and that you can successfully build
+packages within that distribution.
+
+2. Release Notes
+================
+ 1) There is no input line editing. Backspace, ^C, etc. do not work.
+ 2) All C extension modules must be statically linked (built in)
+ 3) The site and os modules must exist as discrete files in ...\lib\python.27
+
+3. Getting and Building the latest version of Python
+======================================================
+ 3.1 Getting Python
+ ==================
+ Currently only version 2.7.2 of the CPython distribution is supported. The
+ source code can be downloaded from http://www.python.org/download/source/.
+
+ A. Within your EDK II development tree, extract the Python distribution into
+ AppPkg/Applications/Python. This should create the
+ AppPkg/Applications/Python/Python-2.7.2 directory.
+
+ B. Copy the files from PyMod-2.7.2 into the corresponding directories within
+ the Python-2.7.2 tree. This will overwrite existing files with files
+ modified for UEFI usage.
+
+ 3.2 Building Python
+ ===================
+ A. Edit Efi/config.c to enable the built-in modules you need.
+ Mandatory Built-in Modules:
+ edk2 errno imp marshal
+
+ Additional built-in modules which are required to use the help()
+ functionality provided by PyDoc, are:
+ _codecs _collections _functools _random
+ _sre _struct _weakref binascii
+ cStringIO gc itertools math
+ operator time
+
+ B. Edit AppPkg/AppPkg.dsc to enable (uncomment) the PythonCore.inf line
+ within the [Components] section.
+
+ C. Build AppPkg, which includes Python, using the standard "build" command:
+ For example, to build Python for an X64 CPU architecture:
+ build -a X64 -p AppPkg\AppPkg.dsc
+
+4. Python-related paths and files
+=================================
+Python depends upon the existence of several directories and files on the
+target system.
+
+ \EFI Root of the UEFI system area.
+ |- \Tools Location of the Python.efi executable.
+ |- \Boot UEFI specified Boot directory.
+ |- \StdLib Root of the Standard Libraries sub-tree.
+ |- \etc Configuration files used by libraries.
+ |- \tmp Temporary files created by tmpfile(), etc.
+ |- \lib Root of the libraries tree.
+ |- \python.27 Directory containing the Python library modules.
+ |- \lib-dynload Dynamically loadable Python extensions.
+ |- \site-packages Site-specific packages and modules.
+
+
+5. Installing Python
+====================
+These directories, on the target system, are populated from the development
+system as follows:
+
+ * \Efi\Tools receives a copy of Build/AppPkg/DEBUG_VS2005/X64/Python.efi.
+ ^^^^^ ^^^^^^
+ Modify the host path to match the your build type and compiler.
+
+ * The \Efi\StdLib\etc directory is populated from the StdLib/Efi/StdLib/etc
+ source directory.
+
+ * Directory \Efi\StdLib\lib\python.27 is populated with packages and modules
+ from the AppPkg/Applications/Python/Python-2.7.2/Lib directory.
+ The recommended minimum set of modules (.py, .pyc, and/or .pyo):
+ os stat ntpath warnings traceback
+ site types copy_reg linecache genericpath
+
+ * Python C Extension Modules built as dynamically loadable extensions go into
+ the \Efi\StdLib\lib\python.27\lib-dynload directory.
+
+
+6. Example: Enabling socket support
+===================================
+ 1. enable {"_socket", init_socket}, in Efi\config.c
+ 2. enable Python-2.7.2/Modules/socketmodule.c in PythonCore.inf.
+ 3. copy socket.py over to /Efi/StdLib/lib/python.27 on your target system.
+ 4. Make sure dependent modules are present(.py) or built in(.c):
+ functools, types, os, sys, warnings, cStringIO, StringIO, errno
+
+ 5. build -a X64 -p AppPkg\AppPkg.dsc
+ 6. copy Build\AppPkg\DEBUG_VS2005\X64\Python.efi to \Efi\Tools on your target system.
+ ^^^^ Modify as needed
+
+
+7. Supported C Modules
+======================
+ Module Name C File(s)
+ =============== =============================================
+ _ast Python/Python-ast.c
+ _bisect Modules/_bisectmodule.c
+ _codecs Modules/_codecsmodule.c
+ _codecs_cn Modules/cjkcodecs/_codecs_cn.c
+ _codecs_hk Modules/cjkcodecs/_codecs_hk.c
+ _codecs_iso2022 Modules/cjkcodecs/_codecs_iso2022.c
+ _codecs_jp Modules/cjkcodecs/_codecs_jp
+ _codecs_kr Modules/cjkcodecs/_codecs_kr
+ _codecs_tw Modules/cjkcodecs/_codecs_tw
+ _collections Modules/_collectionsmodule.c
+ _csv Modules/_csv.c
+ _functools Modules/_functoolsmodule.c
+ _heapq Modules/_heapqmodule.c
+ _io Modules/_io/_iomodule.c Modules/_io/*
+ _json Modules/_json.c
+ _md5 Modules/md5module.c Modules/md5.c
+ _multibytecodec Modules/cjkcodecs/_multibytecodec.c
+ _random Modules/_randommodule.c
+ _sha Modules/shamodule.c
+ _sha256 Modules/sha256module.c
+ _sha512 Modules/sha512module.c
+ _socket Modules/socketmodule.c
+ _sre Modules/_sre.c
+ _struct Modules/_struct.c
+ _symtable Modules/symtablemodule.c
+ _weakref Modules/_weakref.c
+ array Modules/arraymodule.c
+ binascii Modules/binascii.c
+ cmath Modules/cmathmodule.c
+ cPickle Modules/cPickle.c
+ cStringIO Modules/cStringIO.c
+ datetime Modules/datetimemodule.c
+ edk2 Modules/Efi/edk2module.c
+ errno Modules/errnomodule.c
+ future_builtins Modules/future_builtins.c
+ gc Modules/gcmodule.c
+ imp Python/import.c
+ itertools Modules/itertoolsmodule.c
+ marshal Python/marshal.c
+ math Modules/mathmodule.c Modules/_math.c
+ operator Modules/operator.c
+ parser Modules/parsermodule.c
+ select Modules/selectmodule.c
+ signal Modules/signalmodule.c
+ strop Modules/stropmodule.c
+ time Modules/timemodule.c
+ xxsubtype Modules/xxsubtype.c
+ zipimport Modules/zipimport.c
+ zlib Modules/zlibmodule.c Modules/zlib/*
+
+
+8. Tested Python Library Modules
+================================
+This is a partial list of the packages and modules of the Python Standard
+Library that have been tested or used in some manner.
+
+ encodings genericpath.py sha.py
+ importlib getopt.py SimpleHTTPServer.py
+ json hashlib.py site.py
+ pydoc_data heapq.py socket.py
+ xml HTMLParser.py SocketServer.py
+ abc.py inspect.py sre.py
+ argparse.py io.py sre_compile.py
+ ast.py keyword.py sre_constants.py
+ atexit.py linecache.py sre_parse.py
+ BaseHTTPServer.py locale.py stat.py
+ binhex.py md5.py string.py
+ bisect.py modulefinder.py StringIO.py
+ calendar.py ntpath.py struct.py
+ cmd.py numbers.py textwrap.py
+ codecs.py optparse.py token.py
+ collections.py os.py tokenize.py
+ copy.py platform.py traceback.py
+ copy_reg.py posixpath.py types.py
+ csv.py pydoc.py warnings.py
+ dummy_thread.py random.py weakref.py
+ fileinput.py re.py xmllib.py
+ formatter.py repr.py zipfile.py
+ functools.py runpy.py
+
+# # #