Ok thank you for the feedback, and I apologize for mentionning the wrong problem. I was simply not able to determine what was the issue by myself.
I just realized that the macro I suspected to be the initial source of the problem was more or less an equivalent of Q_DECLARE_PRIVATE one can also find in QT source code that is apparently meant to bypass some compiler limitation with RTTI and dynamic_cast.

In my humble opinion it would be a good idea to have pyindi client tested at least as part of indi releases, as I think this project really makes indi extremely powerful, and some opensource projects with growing popularity are relying on it (hinking here at the fantastic work done by Gulinux). However it is definitely not my call, as I am not doing any significant maintenance of either indi or pyindi-client.

Thank you pawel-soja for your work on the project !

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There seems to be already some work made in that direction:
github.com/geehalel/npindi
github.com/MMTObservatory/indiclient/tree/master/indiclient

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There seems to be other things that are not right with 1.8.8 and 1.8.9:
Here is what I get trying to install pyindi with version older than 0.2.6 ie 0.2.5 and earlier :

pip install pyindi-client==0.2.5; python -c "import PyIndi"

/usr/include/libindi/indiproperty.h:42: Error: Syntax error in input(3).
error: command 'swig' failed with exit status 1

class Property
{
    DECLARE_PRIVATE(Property)
public:
    Property();

#define DECLARE_PRIVATE(Class) \
    inline Class##Private* d_func() { return reinterpret_cast<Class##Private *>(getPtrHelper(d_ptr)); } \
    inline const Class##Private* d_func() const { return reinterpret_cast<const Class##Private *>(getPtrHelper(d_ptr)); } \
    friend class Class##Private;

I tried removing all the unstable stuff comming from the ppa's And then installed ubuntu 20.04 stock indi-dev package
Know I am left with this:

ldd /home/user/venv/lib/python3.7/site-packages/_PyIndi.cpython-37m-x86_64-linux-gnu.so
linux-vdso.so.1 (0x00007ffda918b000)
libz.so.1 => /opt/anaconda3/lib/libz.so.1 (0x00007fbfb55b9000)
libcfitsio.so.8 => /usr/lib/x86_64-linux-gnu/libcfitsio.so.8 (0x00007fbfb5285000)
libnova-0.16.so.0 => /usr/lib/x86_64-linux-gnu/libnova-0.16.so.0 (0x00007fbfb4f06000)
libstdc++.so.6 => /opt/anaconda3/lib/libstdc++.so.6 (0x00007fbfb4dc5000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fbfb4c76000)
libgcc_s.so.1 => /opt/anaconda3/lib/libgcc_s.so.1 (0x00007fbfb4c62000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fbfb4c3d000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fbfb4a4b000)
libcurl-gnutls.so.4 => /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so.4 (0x00007fbfb49bc000)
libbz2.so.1.0 => /opt/anaconda3/lib/libbz2.so.1.0 (0x00007fbfb47aa000)
/lib64/ld-linux-x86-64.so.2 (0x00007fbfb56a2000)
libnghttp2.so.14 => /usr/lib/x86_64-linux-gnu/libnghttp2.so.14 (0x00007fbfb4781000)
libidn2.so.0 => /usr/lib/x86_64-linux-gnu/libidn2.so.0 (0x00007fbfb475e000)
librtmp.so.1 => /usr/lib/x86_64-linux-gnu/librtmp.so.1 (0x00007fbfb473e000)
libssh.so.4 => /usr/lib/x86_64-linux-gnu/libssh.so.4 (0x00007fbfb46d0000)
libpsl.so.5 => /usr/lib/x86_64-linux-gnu/libpsl.so.5 (0x00007fbfb46bd000)
libnettle.so.7 => /usr/lib/x86_64-linux-gnu/libnettle.so.7 (0x00007fbfb4683000)
libgnutls.so.30 => /usr/lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007fbfb44ad000)
libgssapi_krb5.so.2 => /opt/anaconda3/lib/libgssapi_krb5.so.2 (0x00007fbfb445c000)
libldap_r-2.4.so.2 => /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2 (0x00007fbfb4406000)
liblber-2.4.so.2 => /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2 (0x00007fbfb43f5000)
libbrotlidec.so.1 => /usr/lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007fbfb43e7000)
libunistring.so.2 => /usr/lib/x86_64-linux-gnu/libunistring.so.2 (0x00007fbfb4265000)
libhogweed.so.5 => /usr/lib/x86_64-linux-gnu/libhogweed.so.5 (0x00007fbfb422b000)
libgmp.so.10 => /opt/anaconda3/lib/libgmp.so.10 (0x00007fbfb3f97000)
libcrypto.so.1.1 => /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 (0x00007fbfb3cc1000)
libp11-kit.so.0 => /usr/lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007fbfb3b8b000)
libtasn1.so.6 => /usr/lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007fbfb3b75000)
libkrb5.so.3 => /opt/anaconda3/lib/./libkrb5.so.3 (0x00007fbfb3a99000)
libk5crypto.so.3 => /opt/anaconda3/lib/./libk5crypto.so.3 (0x00007fbfb3a78000)
libcom_err.so.3 => /opt/anaconda3/lib/./libcom_err.so.3 (0x00007fbfb3a72000)
libkrb5support.so.0 => /opt/anaconda3/lib/./libkrb5support.so.0 (0x00007fbfb3a63000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fbfb3a5d000)
libcrypto.so.1.0.0 => /opt/anaconda3/lib/./libcrypto.so.1.0.0 (0x00007fbfb3814000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007fbfb37f8000)
libsasl2.so.2 => /usr/lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007fbfb37d9000)
libgssapi.so.3 => /usr/lib/x86_64-linux-gnu/libgssapi.so.3 (0x00007fbfb3794000)
libbrotlicommon.so.1 => /usr/lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007fbfb3771000)
libffi.so.7 => /usr/lib/x86_64-linux-gnu/libffi.so.7 (0x00007fbfb3765000)
libheimntlm.so.0 => /usr/lib/x86_64-linux-gnu/libheimntlm.so.0 (0x00007fbfb3759000)
libkrb5.so.26 => /usr/lib/x86_64-linux-gnu/libkrb5.so.26 (0x00007fbfb36c4000)
libasn1.so.8 => /usr/lib/x86_64-linux-gnu/libasn1.so.8 (0x00007fbfb361d000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007fbfb3616000)
libhcrypto.so.4 => /usr/lib/x86_64-linux-gnu/libhcrypto.so.4 (0x00007fbfb35de000)
libroken.so.18 => /usr/lib/x86_64-linux-gnu/libroken.so.18 (0x00007fbfb35c5000)
libwind.so.0 => /usr/lib/x86_64-linux-gnu/libwind.so.0 (0x00007fbfb359b000)
libheimbase.so.1 => /usr/lib/x86_64-linux-gnu/libheimbase.so.1 (0x00007fbfb3587000)
libhx509.so.5 => /usr/lib/x86_64-linux-gnu/libhx509.so.5 (0x00007fbfb3539000)
libsqlite3.so.0 => /opt/anaconda3/lib/libsqlite3.so.0 (0x00007fbfb3414000)
libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007fbfb33d9000)

(no trace of libindi whatsoever)

nm -D /home/gnthibault/projects/RemoteObservatory/venv/lib/python3.7/site-packages/_PyIndi.cpython-37m-x86_64-linux-gnu.so | grep IUSaveConfigText
U IUSaveConfigText

The sybol seems undefined here. But you can find it in
nm -D /usr/lib/x86_64-linux-gnu/libindidriver.so | grep IUSaveConfigText
0000000000035dd3 T IUSaveConfigText

But not much in the static client library:
nm /usr/lib/x86_64-linux-gnu/libindiclient.a | grep Save
0000000000002821 T IUSaveText
U IUSaveText
U IUSaveText

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I would assume here: github.com/indilib/indi/issues

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Same problem here, ubuntu 20.04 on x86

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pedramardakani wrote: Actually Jasem has pointed this out in this github isuue . This worked fine for me too. I had to manually remove some indi-related left-overs from previous installations.

Are you suggesting a large data acquisition campaign to build a ML system that would train on image and use the other sensor as a reference ?
If so this is quite interesting I am going to setup a 224mc based allsky + aag cloudwatcher in the upcoming months.

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Eventually the problems goes away when I reload the driver with indi web manager. However it is still not clear to me what does this error code stands for.

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Dear all,

I recently started to use a ZWO EAF focuser. Unfortunately, after 1 or two successful attempts. I am stuck with the following error message on kstars integrated indi client:
[ERROR] Failed to read max step. Error: 4 2020-07-19T11:29:13:
[ERROR] Failed to stop focuser. Error: 4

What happened ?

Thank you in advance for your help

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