On May 16, 4:29 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > On 16 mai, 22:24, globalrev <[EMAIL PROTECTED]> wrote: > > > > > > > On 16 Maj, 21:22, jay graves <[EMAIL PROTECTED]> wrote: > > > > On May 16, 2:17 pm, globalrev <[EMAIL PROTECTED]> wrote: > > > > > i extract info from one file and put it into a dictionary. > > > > i want to save that dictionary for later use, how do i do that? > > > > might save a list of dictionaries or a list of classobjects too if > > > > there is any difference. > > > > use the 'pickle' module.http://docs.python.org/lib/module-pickle.html > > > > ... > > > Jay Graves > > > pickle.dumps(mg) > > pickle.load(mg) > > > 'dict' object has no attribute 'readline' > > dumps load(well i dont know but i get no complaint but running load > > generates that error) > > What about *READING THAT FUCKING MANUAL* ? > > http://docs.python.org/lib/node316.html > """ > dump(obj, file[, protocol]) > Write a pickled representation of obj to the open file object > file. This is equivalent to Pickler(file, protocol).dump(obj). > > If the protocol parameter is omitted, protocol 0 is used. If > protocol is specified as a negative value or HIGHEST_PROTOCOL, the > highest protocol version will be used. > > Changed in version 2.3: Introduced the protocol parameter. > > file must have a write() method that accepts a single string > argument. It can thus be a file object opened for writing, a StringIO > object, or any other custom object that meets this interface. > > load(file) > Read a string from the open file object file and interpret it as a > pickle data stream, reconstructing and returning the original object > hierarchy. This is equivalent to Unpickler(file).load(). > > file must have two methods, a read() method that takes an integer > argument, and a readline() method that requires no arguments. Both > methods should return a string. Thus file can be a file object opened > for reading, a StringIO object, or any other custom object that meets > this interface. > > This function automatically determines whether the data stream was > written in binary mode or not. > """ > > Example use: > > > > >>> d = dict(a=1, b=2) > >>> f = open("mydict.dat", "w") > >>> pickle.dump(d, f) > >>> f.close() > >>> f = open("mydict.dat") > >>> d2 = pickle.load(f) > >>> f.close() > >>> d2 == d > True > >>> d2 > {'a': 1, 'b': 2} > > Now : it's not the first time - in a couple days - that you ask a > question that you wouldn't have asked if you had taken a couple > minutes doing the tutorial and/or reading the doc. This newsgroup is > *very* tolerant (in most other places on usenet, you would have get a > raw RTFM on the first question, and a PLONK on the second), but there > are still limits, and as far as I'm concerned you're not far from > them. So do yourself and the world a favour, read > this:http://catb.org/~esr/faqs/smart-questions.html > > and then this:http://docs.python.org/tut/tut.html > > and next time someone points you to a specific module, have mercy and > *read* the doc before posting. > > As far as I'm concerned, I won't anwser any of your questions unless > it's obvious that you have followed these advices (but then I'll be > happy to help if I can).- Hide quoted text - > > - Show quoted text -
There is 'shelve'. It's just that you have to re-update each entry when you modify, so it's just similarity you'd be saving. -- http://mail.python.org/mailman/listinfo/python-list
