我从一个flask端点获取两个输入。第一个值是string类型，另一个也是字符串，我将其转换为int类型。
当我将这些值从flask脚本传递到另一个使用matplotlib.pyplot生成饼图的脚本时，我得到一个错误：
analyzer.py:114: UserWarning: Starting a Matplotlib GUI outside of the main thread will likely fail.
patches, texts = plt.pie(sizes, colors=colors, startangle=90)
2020-11-29 20:02:23.430 Python[48923:2857853] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSWindow drag regions should only be invalidated on the Main Thread!'字符串
但是，当我直接运行piechart生成脚本（analyzer.py）时，我能够看到预期的输出，并且在指定的目录中也生成了图形。
以下是导致问题的函数：
def plotPieChart(self, positive, wpositive, spositive, negative,
wnegative, snegative, neutral, searchTerm, noOfSearchTerms):
labels = ['positive [' + str(positive) + '%]', 'Weakly positive ['
+ str(wpositive) + '%]','Strongly positive [' + str(spositive)
+ '%]', 'Neutral [' + str(neutral) + '%]', 'Negative ['
+ str(negative) + '%]', 'Weakly Negative [' + str(wnegative)
+ '%]', 'Strongly Negative [' + str(snegative) + '%]']
sizes = [positive, wpositive, spositive, neutral, negative, wnegative, snegative]
colors = ['yellowgreen','lightgreen','darkgreen', 'gold', 'red','lightsalmon','darkred']
patches, texts = plt.pie(sizes, colors=colors, startangle=90)
plt.legend(patches, labels, loc="best")
plt.title('How people are reacting on ' + searchTerm + ' by analyzing '
+ str(noOfSearchTerms) + ' Tweets.')
plt.axis('equal')
plt.tight_layout()
# plt.show()
plt.savefig('app/static/images/piechart.png')型
完整的stdout堆栈跟踪：
analyzer.py:114: UserWarning: Starting a Matplotlib GUI outside of the main thread will likely fail.
patches, texts = plt.pie(sizes, colors=colors, startangle=90)
2020-11-29 20:02:23.430 Python[48923:2857853] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSWindow drag regions should only be invalidated on the Main Thread!'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff30458b57 __exceptionPreprocess + 250
1 libobjc.A.dylib 0x00007fff692a45bf objc_exception_throw + 48
2 CoreFoundation 0x00007fff3048134c -[NSException raise] + 9
3 AppKit 0x00007fff2d67b5ec -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 310
4 AppKit 0x00007fff2d663052 -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1416
5 AppKit 0x00007fff2d662ac3 -[NSWindow initWithContentRect:styleMask:backing:defer:] + 42
6 _macosx.cpython-39-darwin.so 0x000000010b17d8a5 -[Window initWithContentRect:styleMask:backing:defer:withManager:] + 69
7 _macosx.cpython-39-darwin.so 0x000000010b1813fd FigureManager_init + 269
8 Python 0x00000001002ababa wrap_init + 12
9 Python 0x0000000100269732 wrapperdescr_call + 316
10 Python 0x0000000100262b47 _PyObject_MakeTpCall + 266
11 Python 0x000000010030abd7 call_function + 455
12 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
13 Python 0x00000001002631ec function_code_fastcall + 97
14 Python 0x0000000100262a0b _PyObject_FastCallDictTstate + 212
15 Python 0x0000000100263435 _PyObject_Call_Prepend + 139
16 Python 0x00000001002aba1e slot_tp_init + 87
17 Python 0x00000001002a521b type_call + 150
18 Python 0x0000000100262b47 _PyObject_MakeTpCall + 266
19 Python 0x000000010030abd7 call_function + 455
20 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
21 Python 0x00000001002631ec function_code_fastcall + 97
22 Python 0x0000000100264e4f method_vectorcall + 164
23 Python 0x000000010030aba3 call_function + 403
24 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
25 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
26 Python 0x000000010026317c _PyFunction_Vectorcall + 248
27 Python 0x0000000100264e4f method_vectorcall + 164
28 Python 0x0000000100262ec3 PyVectorcall_Call + 146
29 Python 0x0000000100308064 _PyEval_EvalFrameDefault + 28268
30 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
31 Python 0x000000010026317c _PyFunction_Vectorcall + 248
32 Python 0x0000000100262ec3 PyVectorcall_Call + 146
33 Python 0x0000000100308064 _PyEval_EvalFrameDefault + 28268
34 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
35 Python 0x000000010026317c _PyFunction_Vectorcall + 248
36 Python 0x000000010030aba3 call_function + 403
37 Python 0x0000000100307de0 _PyEval_EvalFrameDefault + 27624
38 Python 0x00000001002631ec function_code_fastcall + 97
39 Python 0x000000010030aba3 call_function + 403
40 Python 0x0000000100307de0 _PyEval_EvalFrameDefault + 27624
41 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
42 Python 0x000000010026317c _PyFunction_Vectorcall + 248
43 Python 0x000000010030aba3 call_function + 403
44 Python 0x0000000100307de0 _PyEval_EvalFrameDefault + 27624
45 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
46 Python 0x000000010026317c _PyFunction_Vectorcall + 248
47 Python 0x000000010030aba3 call_function + 403
48 Python 0x0000000100307e9e _PyEval_EvalFrameDefault + 27814
49 Python 0x00000001002631ec function_code_fastcall + 97
50 Python 0x000000010030aba3 call_function + 403
51 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
52 Python 0x00000001002631ec function_code_fastcall + 97
53 Python 0x000000010030aba3 call_function + 403
54 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
55 Python 0x00000001002631ec function_code_fastcall + 97
56 Python 0x0000000100308064 _PyEval_EvalFrameDefault + 28268
57 Python 0x00000001002631ec function_code_fastcall + 97
58 Python 0x000000010030aba3 call_function + 403
59 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
60 Python 0x00000001002631ec function_code_fastcall + 97
61 Python 0x000000010030aba3 call_function + 403
62 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
63 Python 0x00000001002631ec function_code_fastcall + 97
64 Python 0x000000010030aba3 call_function + 403
65 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
66 Python 0x00000001002631ec function_code_fastcall + 97
67 Python 0x0000000100262a0b _PyObject_FastCallDictTstate + 212
68 Python 0x0000000100263435 _PyObject_Call_Prepend + 139
69 Python 0x00000001002aae83 slot_tp_call + 87
70 Python 0x0000000100262b47 _PyObject_MakeTpCall + 266
71 Python 0x000000010030abd7 call_function + 455
72 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
73 Python 0x00000001002631ec function_code_fastcall + 97
74 Python 0x0000000100262a0b _PyObject_FastCallDictTstate + 212
75 Python 0x0000000100263435 _PyObject_Call_Prepend + 139
76 Python 0x00000001002aae83 slot_tp_call + 87
77 Python 0x0000000100262b47 _PyObject_MakeTpCall + 266
78 Python 0x000000010030abd7 call_function + 455
79 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
80 Python 0x00000001002710c5 gen_send_ex + 269
81 Python 0x0000000100307629 _PyEval_EvalFrameDefault + 25649
82 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
83 Python 0x000000010026317c _PyFunction_Vectorcall + 248
84 Python 0x000000010030aba3 call_function + 403
85 Python 0x0000000100307de0 _PyEval_EvalFrameDefault + 27624
86 Python 0x000000010030b6eb _PyEval_EvalCode + 1998
87 Python 0x000000010026317c _PyFunction_Vectorcall + 248
88 Python 0x000000010030aba3 call_function + 403
89 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
90 Python 0x00000001002631ec function_code_fastcall + 97
91 Python 0x000000010030aba3 call_function + 403
92 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
93 Python 0x00000001002631ec function_code_fastcall + 97
94 Python 0x000000010030aba3 call_function + 403
95 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
96 Python 0x00000001002631ec function_code_fastcall + 97
97 Python 0x000000010030aba3 call_function + 403
98 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
99 Python 0x00000001002631ec function_code_fastcall + 97
100 Python 0x0000000100262a0b _PyObject_FastCallDictTstate + 212
101 Python 0x0000000100263435 _PyObject_Call_Prepend + 139
102 Python 0x00000001002aba1e slot_tp_init + 87
103 Python 0x00000001002a521b type_call + 150
104 Python 0x0000000100262b47 _PyObject_MakeTpCall + 266
105 Python 0x000000010030abd7 call_function + 455
106 Python 0x0000000100307d34 _PyEval_EvalFrameDefault + 27452
107 Python 0x00000001002631ec function_code_fastcall + 97
108 Python 0x000000010030aba3 call_function + 403
109 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
110 Python 0x00000001002631ec function_code_fastcall + 97
111 Python 0x0000000100264f52 method_vectorcall + 423
112 Python 0x0000000100308064 _PyEval_EvalFrameDefault + 28268
113 Python 0x00000001002631ec function_code_fastcall + 97
114 Python 0x000000010030aba3 call_function + 403
115 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
116 Python 0x00000001002631ec function_code_fastcall + 97
117 Python 0x000000010030aba3 call_function + 403
118 Python 0x0000000100307d18 _PyEval_EvalFrameDefault + 27424
119 Python 0x00000001002631ec function_code_fastcall + 97
120 Python 0x0000000100264edb method_vectorcall + 304
121 Python 0x000000010038514f t_bootstrap + 70
122 Python 0x0000000100344ff1 pythread_wrapper + 25
123 libsystem_pthread.dylib 0x00007fff6a651109 _pthread_start + 148
124 libsystem_pthread.dylib 0x00007fff6a64cb8b thread_start + 15
)
libc++abi.dylib: terminating with uncaught exception of type NSException型
我遵循this answer在flask中使用matplotlib的输出。
请让我知道如何解决这个问题？
1条答案
按热度按时间p8h8hvxi1#
我通过使用
Agg后端解决了这个问题，它是非GUI的：字符串