🌐 Mailman 3 March 2006 - Python-list - python.org

Default Section Values in ConfigParser
by mwt March 1, 2006

March 1, 2006

I want to set default values for a ConfigParser. So far, its job is very small, so there is only one section heading, ['Main']. Reading the docs, I see that in order to set default values in a ConfigParser, you initialize it with a dictionary or defaults. However, I'm not quite sure of the syntax to add the section headings in to the dictionary of defaults. For now, I'm doing it like this: default_values = {'username' : 'put username here', 'teamnumber': 'team number here', 'update_interval' : 'update interval'} self.INI = ConfigParser.ConfigParser(default_values) self.INI.add_section('Main') This works, but clearly won't last beyond the adding of a second section. What is the correct way to initialize it with a full dictionary of defaults, including section names? Thanks.

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MySQLdb compile error with AMD64
by Keith Burns March 1, 2006

March 1, 2006

>> Can anyone offer any assistance on this one? > >Look here: > >>> gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -fmessage-length=0 -Wall >>> -D_FORTIFY_SOURCE=2 -g -fPIC -I/usr/include/mysql >>> -I/usr/include/python2.4 -c _mysql.c -o >>> build/temp.linux-x86_64-2.4/_mysql.o -I/usr/include/mysql -g >>> -march=i586 -mcpu=i686 -fmessage-length=0 > >specifically at -march=i586. MySQLdb sets CFLAGS which aren't applicable to >your processor, and as such the compile barfs. You should probably just run >it with something like > >CFLAGS="-march=athlon-64" python setup.py build > >I am positive that MySQLdb works on AMD64, I have it running there. Anyway, >the CFLAGS fix should work. Hey there! Appreciate the help but the CFLAGS did not change the gcc -march (I tried it as above and with CFLAGS="-march=athlon64" which I found in a GCC flag FAQ). I realize that the -march is my problem but I can't work out how to change it. Any ideas? Thanks!

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Re: PEP 354: Enumerations in Python
by Ben Finney March 1, 2006

March 1, 2006

Tim Chase <python.list(a)tim.thechases.com> writes: > Just a couple thoughts: Appreciated. >> An enumeration is an exclusive set of symbolic names bound >> to arbitrary unique values. > > Uniqueness imposes an odd constraint that you can't have synonyms in > the set: > > >>> shades = enum({white:100, grey:50, gray:50, black:0}) I think a dict is best used for this purpose. An enumeration is for when you want all the values in the collection to be unique, but don't care particularly what those values *are*. > > >>> Grades = enum('A', 'B', 'C', 'D', 'F') > > This produces the counter-intuitive result of > > >>> Grades.A > Grades.B > False > > Sure, one can bung with it and create the set of grades backwards, > but then iteration becomes weird. Perhaps the ability to override > the comparitor? Again, if you actually want specific values associated with each member of the collection, I think a dict is best. Note that the enumeration values *can* be dict keys, so you could associate the values with other objects that way. -- \ "I was in a bar the other night, hopping from barstool to | `\ barstool, trying to get lucky, but there wasn't any gum under | _o__) any of them." -- Emo Philips | Ben Finney

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SyntaxError: can't assign to a function call
by Fuzzyman March 1, 2006

March 1, 2006

What gives ? >>> a = [] >>> def f(): return a >>> f() [] >>> a.append(3) >>> f() [3] >>> a += [3] >>> a [3, 3] >>> f() [3, 3] >>> f() += [4] SyntaxError: can't assign to function call >>> Fuzzyman http://www.voidspace.org.uk/python/index.shtml

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Re: PEP 354: Enumerations in Python
by Ben Finney March 1, 2006

March 1, 2006

Toby Dickenson <tdickenson(a)devmail.geminidataloggers.co.uk> writes: > On Monday 27 February 2006 02:49, Ben Finney wrote: >> Coercing a value from an enumeration to a ``str`` results in the >> string that was specified for that value when constructing the >> enumeration:: > > That sentence seems to assume that all enumeration values will have > been specified as strings. Thats reasonable, but your description of > the creation of an enumeration doesnt specify that. True; I'll need to fix the specification so that it does say that. >> An enumerated type is created from a sequence of arguments to the >> type's constructor:: >> >> >>> Weekdays = enum('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat') >> >>> Grades = enum('A', 'B', 'C', 'D', 'F') > > s/arguments/strings/ s/arguments/string arguments/ :-) -- \ "Too many pieces of music finish too long after the end." -- | `\ Igor Stravinskey | _o__) | Ben Finney

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Re: Use empty string for self
by paullanier＠gmail.com March 1, 2006

March 1, 2006

Thanks. I thought for sure it must have been discussed before but for whatever reason, my googling skills couldn't locate it.

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bsddb3 database file, what are the __db.001, __db.002, __db.003 files for?
by Claudio Grondi March 1, 2006

March 1, 2006

I have just started to play around with the bsddb3 module interfacing the Berkeley Database. Beside the intended database file databaseFile.bdb I see in same directory also the __db.001 __db.002 __db.003 files where __db.003 is ten times as larger as the databaseFile.bdb and __db.001 has the same size as the databaseFile.bdb . What are these files for and what could be the reason they occur? If I delete them, the access to the database in databaseFile.bdb still works as expected. Any hints toward enlightenment? Is there any _good_ documentation of the bsddb3 module around beside this provided with this module itself, where it is not necessary e.g. to guess, that C integer value of zero (0) is represented in Python by the value None returned in case of success by db.open() ? Claudio

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Py2exe
by D March 1, 2006

March 1, 2006

I have a simple client/server file server app that I would like to convert to a single .exe. The client is just uses Tkinter and displays a simple GUI. The server has no GUI and just listens for and processes connections. How can I convert these 2 files to an .exe, while enabling the server app to register as a Windows service? Thanks. Doug

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