Thanks Brad and Jim, You're right, this isn't the latest Fedora release and I'm due for an upgrade.
But...I saw this evening that a new version of the Gnucash 3.9 package was available, with the changelog entry "Patch for Python accounting file bug." I installed the update and my script works again. I did not need to add a call to `gnucash_session.load()`, though I'll certainly consider trying that if I encounter a similar problem in the future. John On Sat, Nov 30, 2024 at 4:24 PM Jim DeLaHunt <list+gnuc...@jdlh.com> wrote: > John: > On 2024-11-30 10:55, John Haiducek wrote: > > Hi, > > A Python script I've been using with Gnucash recently stopped working, and > is no longer able to read files that could be read previously with the same > script. The script can open Gnucash XML files, but it doesn't find the > accounts in them. The script uses the official Gnucash Python API. Both > Gnucash and the Python bindings were installed using the Fedora package > manager. > > Here's the script: > > ``` > from sys import argv > from gnucash import Session, SessionOpenMode > > def account_from_path(top_account, account_path, original_path=None): > if original_path==None: original_path = account_path > account, account_path = account_path[0], account_path[1:] > > account = top_account.lookup_by_name(account) > if account == None: > raise Exception( > "path " + ':'.join(original_path) + " could not be found") > > if len(account_path) > 0 : > return account_from_path(account, account_path, original_path) > else: > return account > > if __name__=='__main__': > > gnucash_file = argv[1] > > gnucash_session=Session(gnucash_file, SessionOpenMode.SESSION_READ_ONLY) > > root_account = gnucash_session.book.get_root_account() > > investments = account_from_path(root_account, ['Assets','Investments']) > ``` > > I'm experiencing this with Gnucash 5.9 on Fedora 39, installed using the > Fedora repositories. I'm not sure how to tell whether this is a Gnucash > bug, or a packaging error on the Fedora side, or something else. Any > suggestions for diagnosing or troubleshooting this? > > You might need to add `gnucash_session.load()` after your call to > Session(). > > For background, see the thread "[GNC] unable to iterate accounts with API > Python bindings" from October 2024 at > <https://lists.gnucash.org/pipermail/gnucash-user/2024-October/113845.html> > <https://lists.gnucash.org/pipermail/gnucash-user/2024-October/113845.html>. > The crucial insight, from John Ralls: > > ...there's been only one change to the bindings since then: I removed a load > call from the Session constructor to fix bug 799308. That wasn't exactly the > right thing to do, but it's a surmountable problem: Load the session in the > script.... > > I hope that is helpful. Best regards, —Jim DeLaHunt > > _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All.
