PyInstaller 致命错误：找不到“zmq.h”文件

Question

On MacOS running pyinstaller I get the following trace:

35 INFO: PyInstaller: 3.6
35 INFO: Python: 3.7.7
41 INFO: Platform: Darwin-16.7.0-x86_64-i386-64bit
44 INFO: UPX is not available.

[...]

55950 INFO: Loading module hook "hook-zmq.py"...
/usr/local/lib/python3.7/site-packages/zmq/backend/cffi/__pycache__/_cffi_ext.c:216:10: fatal error: 'zmq.h' file not found
#include <zmq.h>
         ^
1 error generated.
57608 INFO: Loading module hook "hook-gevent.py"...
57732 INFO: Determining a mapping of distributions to packages...
83010 WARNING: Unable to find package for requirement greenlet from package gevent.

[...]

83742 WARNING: library user32 required via ctypes not found
83832 WARNING: library setupapi required via ctypes not found
83833 WARNING: library Advapi32 required via ctypes not found

[...]

125669 INFO: Building EXE from EXE-00.toc completed successfully.

This does not block the build process, but when I run the output program I get

Segmentation fault: 11

Anyone else experienced this issue?

Answer 1

I found very useful to search in the warnings file generated by PyInstaller

In the command output there's a line

85263 INFO: Warnings written to /path/to/warn-file.txt

If I search for zmq the first warning is a top-level import

missing module named multiprocessing.Process - imported by multiprocessing (top-level), zmq.ssh.tunnel (top-level)

That gave me 2 hints:

• multiprocessing was involved in a lot of warnings shown only in that file
• searching through the file a lot of warnings where related to PyQt5 which is imported in my application

I searched for multiprocessing and pyqt imports and removed two unused imports:

from PyQt5.uic import compileUiDir
from multiprocessing import Pool as ThreadPool

This doesn't remove that strange zmq.h missing header fatal error but it makes the application run correctly after the build.

Sharing my solution here, maybe it can be useful for others...