Mailman 3 March 2002 - Python-Dev

Re: [Python-Dev] setup.py deleting files (Was: SSL support in _socket)
by Michael Hudson 01 Mar '02

01 Mar '02

Martin von Loewis <loewis(a)informatik.hu-berlin.de> writes: > Michael Hudson <mwh(a)python.net> writes: > > > It's about this hard, in fact: > > Should you remove the old _failed file before renaming the > newly-failed one? Well, you /could/ do but setup.py is probably only run on sufficiently posixly platforms that it doesn't matter? I'll be safe any way. > > > One little point (or I'd have checked it in already): should we make > > efforts to not install the _failed.so turds? > > People apparently want the file, so just install it. OK. That's also the easier option, another advantage :) Cheers, M. -- The ultimate laziness is not using Perl. That saves you so much work you wouldn't believe it if you had never tried it. -- Erik Naggum, comp.lang.lisp

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Re: [Python-Dev] imaplib.py and SSL
by Tino Lange 01 Mar '02

01 Mar '02

Tino Lange <tino.lange(a)isg.de> writes: > > Here's the context diff [...] > > Maybe I could contribute a bit to the Python project with this patch? Michael Hudson wrote: > Patches should be submitted to sf; it'll just disappear if posted here. Thanks for the hint. I've created an entry in Sourceforge's patch manager also. BR Tino

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imaplib.py and SSL
by Tino Lange 01 Mar '02

01 Mar '02

Hallo! Our company has decided to allow only SSL connections to the e-mailbox from outside. So I needed a SSL capable "imaplib.py" to run my mailwatcher-scripts from home. Thanks to the socket.ssl() in recent Pythons it was nearly no problem to derive an IMAP4_SSL-class from the existing IMAP4-class in Python's standard library. Maybe you want to look over the very small additions that were necessary to implement the IMAP-over-SSL-functionality and add it as a part of the next official "imaplib.py"? Here's the context diff from the most recent CVS version (1.43). It works fine for me this way and it's only a few straight-forward lines of code. Maybe I could contribute a bit to the Python project with this patch? Best regards Tino Lange *** imaplib_143.py Fri Mar 1 08:52:29 2002 --- SSL_imaplib_143.py Fri Mar 1 14:18:15 2002 *************** *** 28,33 **** --- 28,34 ---- CRLF = '\r\n' Debug = 0 IMAP4_PORT = 143 + IMAP4_SSL_PORT = 993 AllowedVersions = ('IMAP4REV1', 'IMAP4') # Most recent first # Commands *************** *** 980,985 **** --- 981,1056 ---- i = 0 n -= 1 + + class IMAP4_SSL(IMAP4): + + """IMAP4 client class over SSL connection + + Instantiate with: IMAP4_SSL([, host[, port[, keyfile[, certfile]]]]) + + host - host's name (default: localhost); + port - port number (default: standard IMAP4 SSL port). + keyfile - PEM formatted file that contains your private key (default: None); + certfile - PEM formatted certificate chain file (default: None); + + for more documentation see the docstring of the parent class IMAP4. + """ + + + def __init__(self, host = '', port = IMAP4_SSL_PORT, keyfile = None, certfile = None): + self.keyfile = keyfile + self.certfile = certfile + IMAP4.__init__(self, host, port) + + + def open(self, host, port): + """Setup connection to remote server on "host:port". + This connection will be used by the routines: + read, readline, send, shutdown. + """ + self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + self.sock.connect((self.host, self.port)) + self.sslobj = socket.ssl(self.sock,self.keyfile, self.certfile) + + + def read(self, size): + """Read 'size' bytes from remote.""" + return self.sslobj.read(size) + + + def readline(self): + """Read line from remote.""" + line = "" + while 1: + char = self.sslobj.read(1) + line += char + if char == "\n": return line + + + def send(self, data): + """Send data to remote.""" + self.sslobj.write(data) + + + def shutdown(self): + """Close I/O established in "open".""" + self.sock.close() + + + def socket(self): + """Return socket instance used to connect to IMAP4 server. + + socket = <instance>.socket() + """ + return self.sock + + + def ssl(self): + """Return SSLObject instance used to communicate with the IMAP4 server. + + ssl = <instance>.socket.ssl() + """ + return self.sslobj class _Authenticator:

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Re: [Python-Dev] setup.py deleting files (Was: SSL support in _socket)
by Michael Hudson 01 Mar '02

01 Mar '02

barry(a)zope.com (Barry A. Warsaw) writes: > >>>>> "MvL" == Martin von Loewis <loewis(a)informatik.hu-berlin.de> writes: > > MvL> I now recall why setup.py deletes modules that cannot be > MvL> imported: If they would be left there, the test cases would > MvL> fail with the ImportError. People had been complaining that > MvL> they get testsuite failures, so we changed setup.py to remove > MvL> the modules which clearly don't work. > > Can we just rename them? I.e. bsddbmodule-failed.so So long as it's bsddbmodule_failed.so, +1. It shouldn't be difficult. Cheers, M. -- MGM will not get your whites whiter or your colors brighter. It will, however, sit there and look spiffy while sucking down a major honking wad of RAM. -- http://www.xiph.org/mgm/

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setup.py deleting files (Was: SSL support in _socket)
by Martin von Loewis 01 Mar '02

01 Mar '02

I now recall why setup.py deletes modules that cannot be imported: If they would be left there, the test cases would fail with the ImportError. People had been complaining that they get testsuite failures, so we changed setup.py to remove the modules which clearly don't work. Regards, Martin

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Re: [Python-Dev] setup.py deleting files (Was: SSL support in _socket)
by Michael Hudson 01 Mar '02

01 Mar '02

Martin von Loewis <loewis(a)informatik.hu-berlin.de> writes: > I now recall why setup.py deletes modules that cannot be imported: If > they would be left there, the test cases would fail with the > ImportError. People had been complaining that they get testsuite > failures, so we changed setup.py to remove the modules which clearly > don't work. Huh? ImportErrors cause skips, not failures ... don't they? Cheers, M. -- incidentally, asking why things are "left out of the language" is a good sign that the asker is fairly clueless. -- Erik Naggum, comp.lang.lisp

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Re: [Python-Dev] PEP 273 - Import from Zip Archives
by Michael Hudson 01 Mar '02

01 Mar '02

"Gordon McMillan" <gmcm(a)hypernet.com> writes: > In the context of python-dev, iu is, I think, useful > because it (a) emulates nearly exactly Python's > import rules and (b) it does so in a nicely OO > framework with some interesting facilities. In > other words, as a model of what some future > revamp of c import might be. Would it be possible to rewrite the import.c code as a new-style claass/type and then allow inheriting from it in Python? This might allow you to slightly overcome the "having to do it all" problem. Or maybe I'm just being silly. Cheers, M. -- The Oxford Bottled Beer Database heartily disapproves of the excessive consumption of alcohol. No, really. -- http://www.bottledbeer.co.uk/beergames.html

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