Question

我正在读取图像，然后使用cv2.imshow显示图像，但是这会使我的脚本崩溃，并带有以下堆栈跟踪。

代码

from flask_restful import Resource
from flask import jsonify, request

from .repository import DocumentRepository
import cv2


class DocumentsResource(Resource):

    def __init__(self):

        self.document_repository = DocumentRepository()

    def post(self):

        img = cv2.imread('front.jpg')
        cv2.imshow('front.jpg', img)
        cv2.waitKey(0)

堆栈跟踪

2018-10-23 11：35：09.828 python3 [47256：2814041] *断言失败   在+ [NSUndoManager _endTopLevelGroupings]中，   /BuildRoot/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation-1451/Foundation/Misc.subproj/NSUndoManager.m:361   2018-10-23 11：35：09.830 python3 [47256：2814041] * 正在终止应用程序   未捕获的异常“ NSInternalInconsistencyException”，原因：   '+ [NSUndoManager（NSInternal）_endTopLevelGroupings]仅对   在主线程上调用。”   ***首先抛出调用堆栈：（0 CoreFoundation 0x00007fff32116fcb __exceptionPreprocess + 171 1 libobjc.A.dylib
  0x00007fff58db0c76 objc_exception_throw + 48 2 CoreFoundation
  0x00007fff3211cd62 + [NSException提高：格式：参数：] + 98 3
  基金会0x00007fff3421b300   -[NSAssertionHandler handleFailureInMethod：object：file：lineNumber：description：] + 193 4
  基金会0x00007fff341a9e54   + [NSUndoManager（NSPrivate）_endTopLevelGroupings] + 469 5 AppKit 0x00007fff2f668e56-[NSApplication运行] + 997 6 QtGui
  0x000000010dc27c12   _ZN26QEventDispatcherMacPrivate22ensureNSAppInitializedEv + 128 7 QtGui 0x000000010dc274ad   _ZN19QEventDispatcherMac13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE   + 693 8 QtCore 0x000000010d335d9f _ZN16QCoreApplication13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE   + 81 9 cv2.cpython-37m-darwin.so 0x00000001082677ef cvWaitKey + 207 10 cv2.cpython-37m-darwin.so
  0x0000000108267e37 _ZN11GuiReceiver12createWindowE7QStringi + 263 11   cv2.cpython-37m-darwin.so 0x0000000108267c6c cvNamedWindow +   540 12 cv2.cpython-37m-darwin.so 0x000000010826a3a1   _ZN11GuiReceiver9showImageE7QStringPv + 161 13 cv2.cpython-37m-darwin.so 0x000000010826a24c cvShowImage +   572 14 cv2.cpython-37m-darwin.so 0x000000010826298b   _ZN2cv6imshowERKNS_6StringERKNS_11_InputArrayE + 475 15 cv2.cpython-37m-darwin.so 0x0000000107853114   _ZL18pyopencv_cv_imshowP7_objectS0_S0_ + 404 16 Python 0x0000000105e2fa4e _PyMethodDef_RawFastCallKeywords + 541 17 Python   0x0000000105e2ef8b _PyCFunction_FastCallKeywords + 44 18 Python
  0x0000000105ec7ad7 call_function + 554 19 Python
  0x0000000105ebfb57 _PyEval_EvalFrameDefault + 5281 20 Python
  0x0000000105e2f379 function_code_fastcall + 117 21 Python
  0x0000000105e2fd21 _PyObject_Call_Prepend + 150 22 Python
  0x0000000105e2f0a2 PyObject_Call + 137 23 Python
  0x0000000105ebfebd _PyEval_EvalFrameDefault + 6151 24 Python
  0x0000000105ec83ff _PyEval_EvalCodeWithName + 1747 25 Python
  0x0000000105e2eb8a _PyFunction_FastCallDict + 441 26 Python
  0x0000000105e2fd21 _PyObject_Call_Prepend + 150 27 Python
  0x0000000105e2f0a2 PyObject_Call + 137 28 Python
  0x0000000105ebfebd _PyEval_EvalFrameDefault + 6151 29 Python
  0x0000000105ec83ff _PyEval_EvalCodeWithName + 1747 30 Python
  0x0000000105e2eb8a _PyFunction_FastCallDict + 441 31 Python
  0x0000000105ebfebd _PyEval_EvalFrameDefault + 6151 32 Python
  0x0000000105ec83ff _PyEval_EvalCodeWithName + 1747 33 Python
  0x0000000105e2eb8a _PyFunction_FastCallDict + 441 34 Python
  0x0000000105ebfebd _PyEval_EvalFrameDefault + 6151 35 Python
  0x0000000105e2f379 function_code_fastcall + 117 36 Python
  0x0000000105ec7b42 call_function + 661 37 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 38 Python
  0x0000000105e2f379 function_code_fastcall + 117 39 Python
  0x0000000105ec7b42 call_function + 661 40 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 41 Python
  0x0000000105e2f379 function_code_fastcall + 117 42 Python
  0x0000000105ec7b42 call_function + 661 43 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 44 Python
  0x0000000105e2f379 function_code_fastcall + 117 45 Python
  0x0000000105e2fd21 _PyObject_Call_Prepend + 150 46 Python
  0x0000000105e6df5b slot_tp_call + 71 47 Python
  0x0000000105e2ede0 _PyObject_FastCallKeywords + 381 48 Python
  0x0000000105ec7b3b call_function + 654 49 Python
  0x0000000105ebfb57 _PyEval_EvalFrameDefault + 5281 50 Python
  0x0000000105e3afe4 gen_send_ex + 242 51 Python
  0x0000000105ebf28e _PyEval_EvalFrameDefault + 3032 52 Python
  0x0000000105ec83ff _PyEval_EvalCodeWithName + 1747 53 Python
  0x0000000105e2ef50 _PyFunction_FastCallKeywords + 225 54 Python
  0x0000000105ec7b42 call_function + 661 55 Python
  0x0000000105ebfbfd _PyEval_EvalFrameDefault + 5447 56 Python
  0x0000000105ec83ff _PyEval_EvalCodeWithName + 1747 57 Python
  0x0000000105e2ef50 _PyFunction_FastCallKeywords + 225 58 Python
  0x0000000105ec7b42 call_function + 661 59 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 60 Python
  0x0000000105e2f379 function_code_fastcall + 117 61 Python
  0x0000000105ec7b42 call_function + 661 62 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 63 Python
  0x0000000105e2f379 function_code_fastcall + 117 64 Python
  0x0000000105ec7b42 call_function + 661 65 Python
  0x0000000105ebfb57 _PyEval_EvalFrameDefault + 5281 66 Python
  0x0000000105e2f379 function_code_fastcall + 117 67 Python
  0x0000000105ec7b42 call_function + 661 68 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 69 Python
  0x0000000105e2f379 function_code_fastcall + 117 70 Python
  0x0000000105e2fd21 _PyObject_Call_Prepend + 150 71 Python
  0x0000000105e6e96f slot_tp_init + 80 72 Python
  0x0000000105e6b464 type_call + 178 73 Python
  0x0000000105e2ede0 _PyObject_FastCallKeywords + 381 74 Python
  0x0000000105ec7b3b call_function + 654 75 Python
  0x0000000105ebfb57 _PyEval_EvalFrameDefault + 5281 76 Python
  0x0000000105e2f379 function_code_fastcall + 117 77 Python
  0x0000000105ec7b42 call_function + 661 78 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 79 Python
  0x0000000105e2f379 function_code_fastcall + 117 80 Python
  0x0000000105e2fd21 _PyObject_Call_Prepend + 150 81 Python
  0x0000000105e2f0a2 PyObject_Call + 137 82 Python
  0x0000000105ebfebd _PyEval_EvalFrameDefault + 6151 83 Python
  0x0000000105e2f379 function_code_fastcall + 117 84 Python
  0x0000000105ec7b42 call_function + 661 85 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 86 Python
  0x0000000105e2f379 function_code_fastcall + 117 87 Python
  0x0000000105ec7b42 call_function + 661 88 Python
  0x0000000105ebfb3e _PyEval_EvalFrameDefault + 5256 89 Python
  0x0000000105e2f379 function_code_fastcall + 117 90 Python
  0x0000000105e2fd21 _PyObject_Call_Prepend + 150 91 Python
  0x0000000105e2f0a2 PyObject_Call + 137 92 Python
  0x0000000105f2ecea t_bootstrap + 71 93 libsystem_pthread.dylib
  0x00007fff59c2b6c1 _pthread_body + 340 94 libsystem_pthread.dylib
  0x00007fff59c2b56d _pthread_body + 0 95 libsystem_pthread.dylib
  0x00007fff59c2ac5d thread_start + 13）libc ++ abi.dylib：终止   带有NSException类型的未捕获异常

操作系统 macOS High Sierra version 10.13.3

体系结构（例如x86） x64

opencv-python版本 *

Answer 1

您正在尝试混合两个世界。 Flask（通过其下面的Werkzeug）基于无头运行的假设进行一些I / O重新编写。当您违反Mac上的假设时，您所看到的可能是什么样。

cv2.imshow崩溃-libc ++ abi.dylib：以类型为NSException

1 个答案: