solved order of import for tests to work

Pose2Sim/calibration.py

@@ -30,6 +30,7 @@
 
 ## INIT
 from Pose2Sim.common import RT_qca2cv, rotate_cam, quat2mat, euclidean_distance, natural_sort
+
 import os
 import logging
 import numpy as np

Pose2Sim/common.py

@@ -18,6 +18,7 @@ import re
 import cv2
 
 import matplotlib as mpl
+mpl.use('qt5agg')
 mpl.rc('figure', max_open_warning=0)
 from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
 from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
@@ -269,8 +270,6 @@ class plotWindow():
     pw.addPlot("2", f)
     '''
 
-    mpl.use('qt5agg')
-
     def __init__(self, parent=None):
         self.app = QApplication(sys.argv)
         self.MainWindow = QMainWindow()