Here is an example (from the QA code) of using history from a Python block.
https://github.com/gnuradio/gnuradio/blob/5953d3c96b42086c5f8c5f97b6fd7e57717f9aa5/gr-blocks/python/blocks/qa_block_gateway.py#L60 See if your code appears to be doing the same thing. On Thu, Sep 21, 2023 at 11:03 AM <kron...@tiscali.it> wrote: > Hello List! > I'm trying to implement a sync block into a OOT module that use previous > samples of the input streams. > So, I'm using the method set_history in the constructor. > The problem is that when I use self.set_history(N) I obtain the following > errors: > > Generating: > '/home/userr/workspace/gnuradio-oot/gr-customModule/examples/untitled.py' > > Executing: /usr/bin/python3 -u > /home/user/workspace/gnuradio-oot/gr-customModule/examples/untitled.py > > QSocketNotifier: Can only be used with threads started with QThread > Traceback (most recent call last): > File > "/home/user/workspace/gnuradio-oot/gr-customModule/examples/untitled.py", > line 291, in <module> > main() > File > "/home/user/workspace/gnuradio-oot/gr-customModule/examples/untitled.py", > line 269, in main > tb = top_block_cls() > ^^^^^^^^^^^^^^^ > File > "/home/user/workspace/gnuradio-oot/gr-customModule/examples/untitled.py", > line 179, in __init__ > self.customModule_testBlock_0_0 = customModule.testBlock(1, max_lag, > lags, alpha, win_len, 1, False) > > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > File > "/usr/local/lib/python3.11/dist-packages/gnuradio/customModule/testBlock.py", > line 33, in __init__ > self.set_history(self.max_pos_lag-self.min_neg_lag+1) > ^^^^^^^^^^^^^^^^ > File "/usr/lib/python3/dist-packages/gnuradio/gr/gateway.py", line 129, > in __getattr__ > if not hasattr(self, "gateway"): > ^^^^^^^^^^^^^^^^^^^^^^^^ > File "/usr/lib/python3/dist-packages/gnuradio/gr/gateway.py", line 129, > in __getattr__ > if not hasattr(self, "gateway"): > ^^^^^^^^^^^^^^^^^^^^^^^^ > File "/usr/lib/python3/dist-packages/gnuradio/gr/gateway.py", line 129, > in __getattr__ > if not hasattr(self, "gateway"): > ^^^^^^^^^^^^^^^^^^^^^^^^ > [Previous line repeated 984 more times] > RecursionError: maximum recursion depth exceeded > > >>> Done (return code 1) > > I'm using GNU Radio 3.10.5.1 (Python 3.11.2) on Debian 12. > What is going on? > Thanks in advance! > Ivan > >
