"Martin v. Löwis" wrote: >> Thoughts ? > > The issue I see is that you have not only one, but many such > distributions per release.
Exactly and that's why more information is needed to figure out which dsitribution file to download than just a single URL can deliver. > So I'm curious as to how you would provide/render that information. Since the meta-format uses RFC822 format, the natural choice would be to be have one semi-colon separated multi-line entry per distribution file. However, since PEP 345 already uses the semi-colon for environment markers, we'd have to use a plain comma... (Working) Example: import email meta_data = """\ Distribution-File: Type: sdist, URL: http://example.net/pkg-A-1.2.3.tgz, Comment: "Source package, needs a C compiler installed.", MD5: 123456789ABCDEF, SHA1: 123456789ABCDEF, PGP: ".....(multi-line text) .....", Python-Implementation: CPython, OS: Windows, Distribution-File: Type: bdist_msi, URL: http://example.net/pkg-1.2.3.msi, MD5: 123456789ABCDEF, SHA1: 123456789ABCDEF, PGP: ".....(multi-line text) .....", Python-Implementation: CPython, Python-Version: 2.5, Python-Variant: UCS2, OS: Windows, OS-Version: XP, Architecture: x86, Processor: i686 Distribution-File: Type: bdist_rpm, URL: http://example.net/pkg-1.2.3.rpm, MD5: 123456789ABCDEF, SHA1: 123456789ABCDEF, PGP: ".....(multi-line text) .....", Python-Implementation: CPython, Python-Version: 2.5, Python-Variant: UCS2, OS: Fedora, OS-Version: 8, Architecture: x86, Processor: i386 """ m = email.message_from_string(meta_data + '\n\n') print m.items() Which gives: [('Distribution-File', ' Type: sdist,\n URL: http://example.net/pkg-A-1.2.3.tgz,\n Comment: "Source package, needs a C compiler installed.",\n MD5: 123456789ABCDEF,\n SHA1: 123456789ABCDEF,\n PGP: ".....(multi-line text)\n .....",\n Python-Implementation: CPython,\n OS: Windows,'), ('Distribution-File', ' Type: bdist_msi,\n URL: http://example.net/pkg-1.2.3.msi,\n MD5: 123456789ABCDEF,\n SHA1: 123456789ABCDEF,\n PGP: ".....(multi-line text)\n .....",\n Python-Implementation: CPython,\n Python-Version: 2.5,\n Python-Variant: UCS2,\n OS: Windows,\n OS-Version: XP,\n Architecture: x86,\n Processor: i686'), ('Distribution-File', ' Type: bdist_rpm,\n URL: http://example.net/pkg-1.2.3.rpm,\n MD5: 123456789ABCDEF,\n SHA1: 123456789ABCDEF,\n PGP: ".....(multi-line text)\n .....",\n Python-Implementation: CPython,\n Python-Version: 2.5,\n Python-Variant: UCS2,\n OS: Fedora,\n OS-Version: 8,\n Architecture: x86,\n Processor: i386')] The entries can then be further decoded into dictionaries: import re ENTRY_RE = re.compile('\s+([-a-zA-Z0-9]+):\s*("[^"]+"|[^,\n\r]+)([,\n\r]|$)') dist_files = [] for name, value in m.items(): if name.lower() == 'distribution-file': d = {} for match in ENTRY_RE.finditer(value): token_name = match.group(1) token_value = match.group(2) d[token_name] = token_value dist_files.append(d) print dist_files Which gives: [{'Comment': '"Source package, needs a C compiler installed."', 'SHA1': '123456789ABCDEF', 'URL': 'http://example.net/pkg-A-1.2.3.tgz', 'OS': 'Windows', 'Python-Implementation': 'CPython', 'PGP': '".....(multi-line text)\n ....."', 'Type': 'sdist', 'MD5': '123456789ABCDEF'}, {'OS': 'Windows', 'SHA1': '123456789ABCDEF', 'URL': 'http://example.net/pkg-1.2.3.msi', 'Python-Variant': 'UCS2', 'Python-Implementation': 'CPython', 'Python-Version': '2.5', 'Architecture': 'x86', 'PGP': '".....(multi-line text)\n ....."', 'OS-Version': 'XP', 'Type': 'bdist_msi', 'Processor': 'i686', 'MD5': '123456789ABCDEF'}, {'OS': 'Fedora', 'SHA1': '123456789ABCDEF', 'URL': 'http://example.net/pkg-1.2.3.rpm', 'Python-Variant': 'UCS2', 'Python-Implementation': 'CPython', 'Python-Version': '2.5', 'Architecture': 'x86', 'PGP': '".....(multi-line text)\n ....."', 'OS-Version': '8', 'Type': 'bdist_rpm', 'Processor': 'i386', 'MD5': '123456789ABCDEF'}] -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 20 2009) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ ::: Try our new mxODBC.Connect Python Database Interface for free ! :::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ _______________________________________________ Catalog-SIG mailing list Catalog-SIG@python.org http://mail.python.org/mailman/listinfo/catalog-sig
