私は多くの解決方法を試しましたが、どれもうまくいきませんでした。私は私のWebプロジェクトをホストするためにドッキングウィンドウを使用していますdocker/matplotlib：RuntimeError：無効なDISPLAY変数
Environment:
Request Method: GET Request URL: http://10.231.xx.xx:8000/upload/
Traceback:
File "/opt/conda/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response 149. response = self.process_exception_by_middleware(e, request)
File "/opt/conda/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response 147. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/code/fileUpload_app/views.py" in msa_result 174. result1 = generate_hist(db, **processing_dict)
File "/code/fileUpload_app/post_processing.py" in generate_hist 182. fig1 = plt.figure()
File "/opt/conda/lib/python2.7/site-packages/matplotlib/pyplot.py" in figure 527. **kwargs)
File "/opt/conda/lib/python2.7/site-packages/matplotlib/backends/backend_qt4agg.py" in new_figure_manager 46. return new_figure_manager_given_figure(num, thisFig)
File "/opt/conda/lib/python2.7/site-packages/matplotlib/backends/backend_qt4agg.py" in new_figure_manager_given_figure 53. canvas = FigureCanvasQTAgg(figure)
File "/opt/conda/lib/python2.7/site-packages/matplotlib/backends/backend_qt4agg.py" in init 76. FigureCanvasQT.init(self, figure)
File "/opt/conda/lib/python2.7/site-packages/matplotlib/backends/backend_qt4.py" in init 68. _create_qApp()
File "/opt/conda/lib/python2.7/site-packages/matplotlib/backends/backend_qt5.py" in _create_qApp 138. raise RuntimeError('Invalid DISPLAY variable')
Exception Type: RuntimeError at /upload/msa_result/1/ Exception Value: Invalid DISPLAY variable
：
は私がエラーメッセージが動作していないecho $DISPLAYを試してみました。
私のコードでは、これらが含まれています
import matplotlib as mpl
mpl.use('Agg')
import matplotlib.pyplot as plt
def generate_hist(db, **kwargs):
fig1 = plt.figure()
hist = mat2[0, 0:pin_num]
fig1 = plt.hist(hist)
plt.savefig("fileUpload_app/static/img/result/hist.jpg")