same issue. i even tried different versions of python and different versions of ubuntu to run it on and none worked

[aminemahd13]

          nice try @mhered ... version definition of python || python3 isn´t working for compiling... 

/usr/bin/python3 setup.py install

running install
/usr/local/lib/python3.9/dist-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
/usr/local/lib/python3.9/dist-packages/setuptools/command/easy_install.py:160: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
running bdist_egg
running egg_info
writing freenect.egg-info/PKG-INFO
writing dependency_links to freenect.egg-info/dependency_links.txt
writing top-level names to freenect.egg-info/top_level.txt
reading manifest file 'freenect.egg-info/SOURCES.txt'
writing manifest file 'freenect.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-armv7l/egg
running install_lib
running build_ext
skipping 'freenect.c' Cython extension (up-to-date)
building 'freenect' extension
arm-linux-gnueabihf-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -ffile-prefix-map=/python3.9-3.9.2=. -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -fPIC -I/usr/include/python3.9 -c freenect.c -o build/temp.linux-armv7l-3.9/freenect.o -fPIC -I ../../include/ -I /usr/include/libusb-1.0/ -I /usr/local/include/libusb-1.0 -I /usr/local/include -I ../c_sync/ -I /usr/local/lib/python3.9/dist-packages/numpy/core/include
In file included from /usr/include/python3.9/numpy/ndarraytypes.h:1822,
                 from /usr/include/python3.9/numpy/ndarrayobject.h:12,
                 from /usr/include/python3.9/numpy/arrayobject.h:4,
                 from freenect.c:353:
/usr/include/python3.9/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 " \
      |  ^~~~~~~
freenect.c: In function ‘PyInit_freenect’:
freenect.c:10210:30: error: ‘PyTypeObject’ {aka ‘struct _typeobject’} has no member named ‘tp_print’
10210 |   __pyx_type_8freenect_CtxPtr.tp_print = 0;
      |                              ^
freenect.c:10214:30: error: ‘PyTypeObject’ {aka ‘struct _typeobject’} has no member named ‘tp_print’
10214 |   __pyx_type_8freenect_DevPtr.tp_print = 0;
      |                              ^
freenect.c:10218:32: error: ‘PyTypeObject’ {aka ‘struct _typeobject’} has no member named ‘tp_print’
10218 |   __pyx_type_8freenect_StatePtr.tp_print = 0;
      |                                ^
freenect.c: In function ‘__Pyx_ParseOptionalKeywords’:
freenect.c:11450:21: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11450 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                     ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11450:21: warning: ‘PyUnicode_AsUnicode’ is deprecated [-Wdeprecated-declarations]
11450 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                     ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:580:45: note: declared here
  580 | Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
      |                                             ^~~~~~~~~~~~~~~~~~~
freenect.c:11450:21: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11450 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                     ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11450:21: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11450 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                     ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11450:21: warning: ‘PyUnicode_AsUnicode’ is deprecated [-Wdeprecated-declarations]
11450 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                     ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:580:45: note: declared here
  580 | Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
      |                                             ^~~~~~~~~~~~~~~~~~~
freenect.c:11450:21: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11450 |                     (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                     ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11466:25: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11466 |                         (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                         ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11466:25: warning: ‘PyUnicode_AsUnicode’ is deprecated [-Wdeprecated-declarations]
11466 |                         (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                         ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:580:45: note: declared here
  580 | Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
      |                                             ^~~~~~~~~~~~~~~~~~~
freenect.c:11466:25: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11466 |                         (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                         ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11466:25: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11466 |                         (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                         ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c:11466:25: warning: ‘PyUnicode_AsUnicode’ is deprecated [-Wdeprecated-declarations]
11466 |                         (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                         ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:580:45: note: declared here
  580 | Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
      |                                             ^~~~~~~~~~~~~~~~~~~
freenect.c:11466:25: warning: ‘_PyUnicode_get_wstr_length’ is deprecated [-Wdeprecated-declarations]
11466 |                         (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
      |                         ^
In file included from /usr/include/python3.9/unicodeobject.h:1026,
                 from /usr/include/python3.9/Python.h:97,
                 from freenect.c:16:
/usr/include/python3.9/cpython/unicodeobject.h:446:26: note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
freenect.c: In function ‘__Pyx_ExceptionSave’:
freenect.c:11588:21: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
11588 |     *type = tstate->exc_type;
      |                     ^~~~~~~~
      |                     curexc_type
freenect.c:11589:22: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
11589 |     *value = tstate->exc_value;
      |                      ^~~~~~~~~
      |                      curexc_value
freenect.c:11590:19: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
11590 |     *tb = tstate->exc_traceback;
      |                   ^~~~~~~~~~~~~
      |                   curexc_traceback
freenect.c: In function ‘__Pyx_ExceptionReset’:
freenect.c:11602:24: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
11602 |     tmp_type = tstate->exc_type;
      |                        ^~~~~~~~
      |                        curexc_type
freenect.c:11603:25: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
11603 |     tmp_value = tstate->exc_value;
      |                         ^~~~~~~~~
      |                         curexc_value
freenect.c:11604:22: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
11604 |     tmp_tb = tstate->exc_traceback;
      |                      ^~~~~~~~~~~~~
      |                      curexc_traceback
freenect.c:11605:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_type’; did you mean ‘curexc_type’?
11605 |     tstate->exc_type = type;
      |             ^~~~~~~~
      |             curexc_type
freenect.c:11606:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_value’; did you mean ‘curexc_value’?
11606 |     tstate->exc_value = value;
      |             ^~~~~~~~~
      |             curexc_value
freenect.c:11607:13: error: ‘PyThreadState’ {aka ‘struct _ts’} has no member named ‘exc_traceback’; did you mean ‘curexc_traceback’?
11607 |     tstate->exc_traceback = tb;
      |             ^~~~~~~~~~~~~
      |             curexc_traceback
error: command '/usr/bin/arm-linux-gnueabihf-gcc' failed with exit code 1

I need to use the python freenect library on following system...
Linux version 5.10.92-v7l+ (dom@buildbot) (arm-linux-gnueabihf-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0

anybody an idea which changes fix that?

Originally posted by @armorvx in #550 (comment)

[piedar]

The existing freenect.c is outdated so it's better to generate it locally using one of these methods.

• run python setup.py build_ext -f
• delete wrappers/python/freenect.c (as done in 8f5ba39) and try again
• use cmake -DBUILD_PYTHON3=ON rather than running setup.py