Question: I tried to install the package using pip: pip wheel --use-pep517 "typed-ast (==1.5.4)"  but it falls in the same place. What's the general approach when you walk into such kind of problems? I've found this thread, which seemed to be helpful, but it wasn't (.venv) ➜ src git:(develop) ✗ poetry install Installing dependencies from lock file Warning: poetry.lock is not consistent with pyproject.toml. You may be getting improper dependencies. Run `poetry lock [--no-update]` to fix it. Package operations: 24 installs, 0 updates, 0 removals • Installing typed-ast (1.5.4): Failed ChefBuildError Backend subprocess exited when trying to invoke build_wheel running bdist_wheel running build running build_py creating build creating build/lib.linux-x86_64-cpython-311 creating build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/__init__.py -> build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/ast27.py -> build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/conversions.py -> build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/ast3.py -> build/lib.linux-x86_64-cpython-311/typed_ast creating build/lib.linux-x86_64-cpython-311/typed_ast/tests copying ast3/tests/test_basics.py -> build/lib.linux-x86_64-cpython-311/typed_ast/tests running build_ext building '_ast27' extension creating build/temp.linux-x86_64-cpython-311 creating build/temp.linux-x86_64-cpython-311/ast27 creating build/temp.linux-x86_64-cpython-311/ast27/Custom creating build/temp.linux-x86_64-cpython-311/ast27/Parser creating build/temp.linux-x86_64-cpython-311/ast27/Python x86_64-linux-gnu-gcc -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -fPIC -Iast27/Include -I/tmp/tmpwhqt9erw/.venv/include -I/usr/include/python3.11 -c ast27/Custom/typed_ast.c -o build/temp.linux-x86_64-cpython-311/ast27/Custom/typed_ast.o ast27/Custom/typed_ast.c:1:10: fatal error: Python.h: No such file or directory 1 | #include "Python.h" | ^~~~~~~~~~ compilation terminated. error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1 at ~/c/mrnet/mrnet_backend/.venv/lib/python3.11/site-packages/poetry/installation/chef.py:152 in _prepare 148│ 149│ error = ChefBuildError("\n\n".join(message_parts)) 150│ 151│ if error is not None: → 152│ raise error from None 153│ 154│ return path 155│ 156│ def _prepare_sdist(self, archive: Path, destination: Path | None = None) -> Path: Note: This error originates from the build backend, and is likely not a problem with poetry but with typed-ast (1.5.4) not supporting PEP 517 builds. You can verify this by running 'pip wheel --use-pep517 "typed-ast (==1.5.4)"'. (.venv) ➜ src git:(develop) ✗ pip wheel --use-pep517 "typed-ast (==1.5.4)" Collecting typed-ast==1.5.4 Using cached typed_ast-1.5.4.tar.gz (252 kB) Installing build dependencies ... done Getting requirements to build wheel ... done Preparing metadata (pyproject.toml) ... done Building wheels for collected packages: typed-ast Building wheel for typed-ast (pyproject.toml) ... error error: subprocess-exited-with-error × Building wheel for typed-ast (pyproject.toml) did not run successfully. │ exit code: 1 ╰─> [25 lines of output] running bdist_wheel running build running build_py creating build creating build/lib.linux-x86_64-cpython-311 creating build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/__init__.py -> build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/ast27.py -> build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/conversions.py -> build/lib.linux-x86_64-cpython-311/typed_ast copying typed_ast/ast3.py -> build/lib.linux-x86_64-cpython-311/typed_ast creating build/lib.linux-x86_64-cpython-311/typed_ast/tests copying ast3/tests/test_basics.py -> build/lib.linux-x86_64-cpython-311/typed_ast/tests running build_ext building '_ast27' extension creating build/temp.linux-x86_64-cpython-311 creating build/temp.linux-x86_64-cpython-311/ast27 creating build/temp.linux-x86_64-cpython-311/ast27/Custom creating build/temp.linux-x86_64-cpython-311/ast27/Parser creating build/temp.linux-x86_64-cpython-311/ast27/Python x86_64-linux-gnu-gcc -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -fPIC -Iast27/Include -I/home/yevt/c/mrnet/mrnet_backend/.venv/include -I/usr/include/python3.11 -c ast27/Custom/typed_ast.c -o build/temp.linux-x86_64-cpython-311/ast27/Custom/typed_ast.o ast27/Custom/typed_ast.c:1:10: fatal error: Python.h: No such file or directory 1 | #include "Python.h" | ^~~~~~~~~~ compilation terminated. error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1 [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for typed-ast Failed to build typed-ast ERROR: Failed to build one or more wheels (.venv) ➜ src git:(develop) ✗ pip wheel --use-pep517 "typed-ast (==1.5.4)"   ubuntu 22.04 gcc 11.3.0 python 3.11 

Answer: Do you install python3.11-dev? sudo apt install -y python3.11-dev  or packages for compiling sudo apt install -y build-essential libssl-dev libffi-dev python3.11-dev