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Description
Bug summary
matplotlib.get_backend() will get stuck ifDISPLAY cannot be connected. Maybe should consider adding a timeout here.
matplotlib/src/_c_internal_utils.c
Lines 19 to 37 in1b4b50b
| if (getenv("DISPLAY") | |
| && (libX11=dlopen("libX11.so.6",RTLD_LAZY))) { | |
| structDisplay*display=NULL; | |
| structDisplay* (*XOpenDisplay)(charconst*)= | |
| dlsym(libX11,"XOpenDisplay"); | |
| int (*XCloseDisplay)(structDisplay*)= | |
| dlsym(libX11,"XCloseDisplay"); | |
| if (XOpenDisplay&&XCloseDisplay | |
| && (display=XOpenDisplay(NULL))) { | |
| XCloseDisplay(display); | |
| } | |
| if (dlclose(libX11)) { | |
| PyErr_SetString(PyExc_RuntimeError,dlerror()); | |
| returnNULL; | |
| } | |
| if (display) { | |
| Py_RETURN_TRUE; | |
| } | |
| } |
Code for reproduction
importmatplotlibmatplotlib.get_backend()
Actual outcome
get stuck
Expected outcome
returnheadless ifDISPLAY cannot be connected
Additional information
No response
Operating system
No response
Matplotlib Version
3.7.3
Matplotlib Backend
No response
Python version
3.11.3
Jupyter version
No response
Installation
pip