访问和更新模块中定义的python3集

Question

I am using https://github.com/sciunto/python-bibtexparser as a library module for my code(installed with pip3). So, I don't have writing access to the module.

But, the set it is using is rather limited, as defined in standard_types in https://github.com/sciunto/python-bibtexparser/blob/master/bibtexparser/bibdatabase.py .

Is it possible, that, I redefine/append the set from the calling code? eg

#foo.py
import bibtexparser

#redefine standard_types
bibtexparser.STANDARD_TYPES = set([the complete set I need])

#or append the standard_types
bibtexparser.STANDARD_TYPES.update = set([append to the set])

?

Update : Actually I cant access the variable STANDARD_TYPES. I am trying to do:

from bibtexparser import bibdatabase as bd

class Window(Gtk.ApplicationWindow):
    def __init__(self, application, giofile=None):
        Gtk.ApplicationWindow.__init__(self,
                                       application=application,
                                       default_width=1000,
                                       default_height=200,
                                       border_width=5)


        print(bd)
        print(bd.STANDARD_TYPES)

Which is yielding:

    <module 'bibtexparser.bibdatabase' from '/usr/lib/python3.5/site-packages/bibtexparser/bibdatabase.py'>
......
        print(bd.STANDARD_TYPES)
    AttributeError: module 'bibtexparser.bibdatabase' has no attribute 'STANDARD_TYPES'

Answer 1

It looks like other parts of the package perform from bibtextparser import STANDARD_TYPES , so you can't just replace it; the modules that have already imported it will keep the old version. Using update would work fine though you need to fix your syntax:

bibtexparser.STANDARD_TYPES.update({append to the set})

That said, it looks like BibTexParser can be initialized passing it ignore_nonstandard_types=True and it won't even check STANDARD_TYPES , which is probably what you really want; it doesn't involve hacky monkey-patching at all.