systemd/python-systemd

compile error on Arch Linux

jeanlucthumm opened this issue · 4 comments

Can't run the following within a venv:

pip install systemd

It fails with this output

Collecting systemd
  Using cached systemd-0.16.1.tar.gz (173 kB)
Using legacy 'setup.py install' for systemd, since package 'wheel' is not installed.
Installing collected packages: systemd
    Running setup.py install for systemd: started
    Running setup.py install for systemd: finished with status 'error'
    ERROR: Command errored out with exit status 1:
     command: /home/jeanluc/Code/reddit-scheduler/.venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-rs318epm/systemd/setup.py'"'"'; __file__='"'"'/tmp/pip-install-rs318epm/systemd/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-pg_yt4_e/install-record.txt --single-version-externally-managed --compile --install-headers /home/jeanluc/Code/reddit-scheduler/.venv/include/site/python3.9/systemd
         cwd: /tmp/pip-install-rs318epm/systemd/
    Complete output (395 lines):
    /usr/lib/python3.9/distutils/dist.py:274: UserWarning: Unknown distribution option: 'build_requires'
      warnings.warn(msg)
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.9
    creating build/lib.linux-x86_64-3.9/systemd
    copying systemd/daemon.py -> build/lib.linux-x86_64-3.9/systemd
    copying systemd/__init__.py -> build/lib.linux-x86_64-3.9/systemd
    copying systemd/journal.py -> build/lib.linux-x86_64-3.9/systemd
    running build_ext
    building 'systemd._daemon' extension
    creating build/temp.linux-x86_64-3.9
    creating build/temp.linux-x86_64-3.9/systemd
    /usr/bin/clang -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fno-semantic-interposition -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fPIC -I/home/jeanluc/Code/reddit-scheduler/.venv/include -I/usr/include/python3.9 -c systemd/_daemon.c -o build/temp.linux-x86_64-3.9/systemd/_daemon.o
    cython_utility:524:22: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                         ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:524:22: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                         ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:524:22: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                         ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:524:52: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                       ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:524:52: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                       ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:524:52: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                       ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:540:26: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                             ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:540:26: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                             ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:540:26: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                             ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:540:59: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                              ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:540:59: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                              ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:540:59: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                              ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    12 warnings generated.
    gcc -pthread -shared -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now -fno-semantic-interposition -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now build/temp.linux-x86_64-3.9/systemd/_daemon.o -L/usr/lib -lsystemd -o build/lib.linux-x86_64-3.9/systemd/_daemon.cpython-39-x86_64-linux-gnu.so
    building 'systemd._journal' extension
    /usr/bin/clang -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fno-semantic-interposition -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fPIC -I/home/jeanluc/Code/reddit-scheduler/.venv/include -I/usr/include/python3.9 -c systemd/_journal.c -o build/temp.linux-x86_64-3.9/systemd/_journal.o -DSYSLOG_NAMES=1
    cython_utility:58:16: warning: 'PyUnicode_FromUnicode' is deprecated [-Wdeprecated-declarations]
            return PyUnicode_FromUnicode(NULL, 0);
                   ^
    /usr/include/python3.9/cpython/unicodeobject.h:551:1: note: 'PyUnicode_FromUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(PyObject*) PyUnicode_FromUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    1 warning generated.
    gcc -pthread -shared -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now -fno-semantic-interposition -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now build/temp.linux-x86_64-3.9/systemd/_journal.o -L/usr/lib -lsystemd -o build/lib.linux-x86_64-3.9/systemd/_journal.cpython-39-x86_64-linux-gnu.so
    building 'systemd.reader' extension
    /usr/bin/clang -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fno-semantic-interposition -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fPIC -I/home/jeanluc/Code/reddit-scheduler/.venv/include -I/usr/include/python3.9 -c systemd/reader.c -o build/temp.linux-x86_64-3.9/systemd/reader.o -DSYSLOG_NAMES=1
    systemd/reader.pyx:271:94: warning: passing 'char **' to parameter of type 'const char **' discards qualifiers in nested pointer types [-Wincompatible-pointer-types-discards-qualifiers]
                __pyx_t_2 = __Pyx_PyInt_From_int(sd_journal_open_files((&__pyx_v_self->context), __pyx_v_paths, 0)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 271, __pyx_L12_error)
                                                                                                 ^~~~~~~~~~~~~
    /usr/include/systemd/sd-journal.h:89:58: note: passing argument to parameter 'paths' here
    int sd_journal_open_files(sd_journal **ret, const char **paths, int flags);
                                                             ^
    (tree fragment):161:39: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_Matcher.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):166:41: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_Operation.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):174:44: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_JournalEntry.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):182:45: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_JournalReader.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):188:57: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader___pyx_scope_struct___lock.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):191:57: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_scope_struct____Pyx_CFunc_str____object___to_py.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    cython_utility:163:22: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                         ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:163:22: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                         ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:163:22: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                         ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:163:52: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                       ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:163:52: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                       ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:163:52: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                        (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                       ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:179:26: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                             ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:179:26: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                             ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:179:26: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                             ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:179:59: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                              ^
    /usr/include/python3.9/cpython/unicodeobject.h:261:7: note: expanded from macro 'PyUnicode_GET_SIZE'
          PyUnicode_WSTR_LENGTH(op) :                    \
          ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:179:59: warning: 'PyUnicode_AsUnicode' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                              ^
    /usr/include/python3.9/cpython/unicodeobject.h:262:14: note: expanded from macro 'PyUnicode_GET_SIZE'
          ((void)PyUnicode_AsUnicode(_PyObject_CAST(op)),\
                 ^
    /usr/include/python3.9/cpython/unicodeobject.h:580:1: note: 'PyUnicode_AsUnicode' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3) PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    cython_utility:179:59: warning: '_PyUnicode_get_wstr_length' is deprecated [-Wdeprecated-declarations]
                            (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
                                                              ^
    /usr/include/python3.9/cpython/unicodeobject.h:264:8: note: expanded from macro 'PyUnicode_GET_SIZE'
           PyUnicode_WSTR_LENGTH(op)))
           ^
    /usr/include/python3.9/cpython/unicodeobject.h:451:35: note: expanded from macro 'PyUnicode_WSTR_LENGTH'
    #define PyUnicode_WSTR_LENGTH(op) _PyUnicode_get_wstr_length((PyObject*)op)
                                      ^
    /usr/include/python3.9/cpython/unicodeobject.h:445:1: note: '_PyUnicode_get_wstr_length' has been explicitly marked deprecated here
    Py_DEPRECATED(3.3)
    ^
    /usr/include/python3.9/pyport.h:508:54: note: expanded from macro 'Py_DEPRECATED'
    #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
                                                         ^
    13 warnings and 6 errors generated.
    error: command '/usr/bin/clang' failed with exit code 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /home/jeanluc/Code/reddit-scheduler/.venv/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-rs318epm/systemd/setup.py'"'"'; __file__='"'"'/tmp/pip-install-rs318epm/systemd/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-pg_yt4_e/install-record.txt --single-version-externally-managed --compile --install-headers /home/jeanluc/Code/reddit-scheduler/.venv/include/site/python3.9/systemd Check the logs for full command output.
WARNING: You are using pip version 20.2.3; however, version 21.0.1 is available.
You should consider upgrading via the '/home/jeanluc/Code/reddit-scheduler/.venv/bin/python -m pip install --upgrade pip' command.

The important section seems to be:

    /usr/bin/clang -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fno-semantic-interposition -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fPIC -I/home/jeanluc/Code/reddit-scheduler/.venv/include -I/usr/include/python3.9 -c systemd/reader.c -o build/temp.linux-x86_64-3.9/systemd/reader.o -DSYSLOG_NAMES=1
    systemd/reader.pyx:271:94: warning: passing 'char **' to parameter of type 'const char **' discards qualifiers in nested pointer types [-Wincompatible-pointer-types-discards-qualifiers]
                __pyx_t_2 = __Pyx_PyInt_From_int(sd_journal_open_files((&__pyx_v_self->context), __pyx_v_paths, 0)); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 271, __pyx_L12_error)
                                                                                                 ^~~~~~~~~~~~~
    /usr/include/systemd/sd-journal.h:89:58: note: passing argument to parameter 'paths' here
    int sd_journal_open_files(sd_journal **ret, const char **paths, int flags);
                                                             ^
    (tree fragment):161:39: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_Matcher.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):166:41: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_Operation.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):174:44: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_JournalEntry.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):182:45: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader_JournalReader.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):188:57: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_type_7systemd_6reader___pyx_scope_struct___lock.tp_print = 0;
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
    (tree fragment):191:57: error: no member named 'tp_print' in 'struct _typeobject'
      __pyx_scope_struct____Pyx_CFunc_str____object___to_py.tp_print = 0;

Some info:

$ pip --version
pip 20.2.3 from [....] (python 3.9)
$ uname -a 
Linux [...] 5.11.11-arch1-1 [...] x86_64 GNU/Linux

Oh I see that systemd on pip actually links to mosquito/cysystemd, wrong package.

Hi,

any suggestion on how to work around this issue?

Thank you

Try
pip install systemd-python

Instead of systemd.

That works, thanks!