shenleiandClaude Opus 5
5fad769ee8
The embedded 40250 script layer needs its own interpreter on five platforms. 2.7 is end-of-life, so nothing can be fetched from the target SDKs and the source is vendored (official 2.7.18 tarball, trimmed to 25MB; Lib/ stays for step 3's python27.zip). cpython-2.7.18/CMakeLists.txt builds one `mtpython` static library from exactly the 133 objects the reference libpython2.7.a contains, off by default behind -DMTGODOT_EMBED_PYTHON=ON. The source list and the built-in module table (config/config.c, 39 entries) are shared; pyconfig.h is a probe result and is not, so each platform keeps its own under config/<platform>/, regenerated by tools/py_embed/gen_pyconfig.sh and checked against the shared table. Three vendor patches, documented in docs/THIRD-PARTY.md: configure/configure.ac learn arm64 on macOS, and posixmodule.c undefines the process-control calls it hard-defines past pyconfig.h when building for iOS. macOS (ctest python.embed: every builtin imports, codecs and pickle work off the vendored Lib/), Android arm64 and iOS arm64 build. Linux needs a Linux host and Windows needs a MinGW-vs-MSVC decision; both are noted for step 4. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
# Copyright (C) 2001-2006 Python Software Foundation
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# Author: Barry Warsaw
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# Contact: email-sig@python.org
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"""Various types of useful iterators and generators."""
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__all__ = [
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'body_line_iterator',
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'typed_subpart_iterator',
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'walk',
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# Do not include _structure() since it's part of the debugging API.
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]
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import sys
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from cStringIO import StringIO
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# This function will become a method of the Message class
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def walk(self):
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"""Walk over the message tree, yielding each subpart.
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The walk is performed in depth-first order. This method is a
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generator.
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"""
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yield self
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if self.is_multipart():
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for subpart in self.get_payload():
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for subsubpart in subpart.walk():
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yield subsubpart
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# These two functions are imported into the Iterators.py interface module.
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def body_line_iterator(msg, decode=False):
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"""Iterate over the parts, returning string payloads line-by-line.
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Optional decode (default False) is passed through to .get_payload().
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"""
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for subpart in msg.walk():
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payload = subpart.get_payload(decode=decode)
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if isinstance(payload, basestring):
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for line in StringIO(payload):
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yield line
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def typed_subpart_iterator(msg, maintype='text', subtype=None):
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"""Iterate over the subparts with a given MIME type.
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Use `maintype' as the main MIME type to match against; this defaults to
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"text". Optional `subtype' is the MIME subtype to match against; if
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omitted, only the main type is matched.
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"""
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for subpart in msg.walk():
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if subpart.get_content_maintype() == maintype:
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if subtype is None or subpart.get_content_subtype() == subtype:
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yield subpart
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def _structure(msg, fp=None, level=0, include_default=False):
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"""A handy debugging aid"""
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if fp is None:
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fp = sys.stdout
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tab = ' ' * (level * 4)
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print >> fp, tab + msg.get_content_type(),
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if include_default:
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print >> fp, '[%s]' % msg.get_default_type()
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else:
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print >> fp
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if msg.is_multipart():
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for subpart in msg.get_payload():
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_structure(subpart, fp, level+1, include_default)
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