pywt/_extensions/_pywt.c:32529:5: error: lvalue required as decrement operand

[Hubbitus]

pip3 install PyWavelets==1.1.1

Failed to build PyWavelets
Installing collected packages: PyWavelets
    Running setup.py install for PyWavelets ... error
    ERROR: Command errored out with exit status 1:
     command: /home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/bin/python -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-lh15fhus/pywavelets_4834748b890745fd99446cfc861f7025/setup.py'"'"'; __file__='"'"'/tmp/pip-install-lh15fhus/pywavelets_4834748b890745fd99446cfc861f7025/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-k7zv2_oe/install-record.txt --single-version-externally-managed --compile --install-headers /home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/include/site/python3.10/PyWavelets
         cwd: /tmp/pip-install-lh15fhus/pywavelets_4834748b890745fd99446cfc861f7025/
    Complete output (183 lines):
    /tmp/pip-install-lh15fhus/pywavelets_4834748b890745fd99446cfc861f7025/setup.py:62: DeprecationWarning: the imp module is deprecated in favour of importlib and slated for removal in Python 3.12; see the module's documentation for alternative uses
      import imp
    
    Note: if you need reliable uninstall behavior, then install
    with pip instead of using `setup.py install`:
    
      - `pip install .`       (from a git repo or downloaded source
                               release)
      - `pip install PyWavelets`   (last PyWavelets release on PyPI)
    
    
    running install
    running build
    running build_py
    copying pywt/version.py -> build/lib.linux-x86_64-3.10/pywt
    copying pywt/_c99_config.py -> build/lib.linux-x86_64-3.10/pywt
    running build_clib
    building 'c_wt' library
    running build_ext
    building 'pywt._extensions._pywt' extension
    gcc -Wno-unused-result -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -fPIC -DPY_EXTENSION -DHAVE_C99_COMPLEX -DCYTHON_CCOMPLEX=1 -Ipywt/_extensions/c -I/home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/lib64/python3.10/site-packages/numpy/core/include -I/home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/include -I/usr/include/python3.10 -c pywt/_extensions/_pywt.c -o build/temp.linux-x86_64-3.10/pywt/_extensions/_pywt.o
    In file included from /home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/lib64/python3.10/site-packages/numpy/core/include/numpy/ndarraytypes.h:1969,
                     from /home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/lib64/python3.10/site-packages/numpy/core/include/numpy/ndarrayobject.h:12,
                     from /home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/lib64/python3.10/site-packages/numpy/core/include/numpy/arrayobject.h:4,
                     from pywt/_extensions/_pywt.c:657:
    /home/pasha/@Projects/@Experiments/linux-video/ms-teams-replace-background/venv/lib64/python3.10/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:17:2: warning: #warning "Using deprecated NumPy API, disable it with " "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
       17 | #warning "Using deprecated NumPy API, disable it with " \
          |  ^~~~~~~
    pywt/_extensions/_pywt.c: In function ‘__pyx_tp_dealloc_4pywt_11_extensions_5_pywt_Wavelet’:
    pywt/_extensions/_pywt.c:32259:5: error: lvalue required as increment operand
    32259 |     ++Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c:32261:5: error: lvalue required as decrement operand
    32261 |     --Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c: In function ‘__pyx_tp_dealloc_4pywt_11_extensions_5_pywt_ContinuousWavelet’:
    pywt/_extensions/_pywt.c:32527:5: error: lvalue required as increment operand
    32527 |     ++Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c:32529:5: error: lvalue required as decrement operand
    32529 |     --Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c: In function ‘__pyx_tp_dealloc_array’:
    pywt/_extensions/_pywt.c:32826:5: error: lvalue required as increment operand
    32826 |     ++Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c:32828:5: error: lvalue required as decrement operand
    32828 |     --Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c: In function ‘__pyx_tp_dealloc_memoryview’:
    pywt/_extensions/_pywt.c:33121:5: error: lvalue required as increment operand
    33121 |     ++Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c:33123:5: error: lvalue required as decrement operand
    33123 |     --Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c: In function ‘__pyx_tp_dealloc__memoryviewslice’:
    pywt/_extensions/_pywt.c:33363:5: error: lvalue required as increment operand
    33363 |     ++Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c:33365:5: error: lvalue required as decrement operand
    33365 |     --Py_REFCNT(o);
          |     ^~
    pywt/_extensions/_pywt.c: In function ‘__Pyx_ParseOptionalKeywords’:
    pywt/_extensions/_pywt.c:38876:21: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
    38876 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
          |                     ^
    In file included from /usr/include/python3.10/unicodeobject.h:1046,
                     from /usr/include/python3.10/Python.h:96,
                     from pywt/_extensions/_pywt.c:61:

$ gcc --version
gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Fedora 35

[rgommers]

Wheels for Python 3.10 are on their way, likely will be available this week. Unfortunately you are using Fedora, which upgraded to Python 3.10 too early. It looks like PyWavelets 1.1.1 does not work with Python 3.10; maybe the master branch in this repo does so try that, or otherwise wait until wheels are available.

[rgommers]

The problem here is that the latest Cython 0.29.x doesn't yet have Python 3.10 wheels up it looks like. I see the same issue on other projects (e.g., yaml/pyyaml#416).

[rgommers]

The 1.2.0 release will have Python 3.10 wheels, which closes this issue.

[Hubbitus]

Thank you. 1.2.0 version installed correctly.

[rgommers]

thanks for confirming

[zhang405744522]

update the new version pywavelet, this issue is caused the mis-version.