old_contents: from PyQt5 import QtWidgets, QtGui, QtCore
  from PyQt5.QtCore import pyqtSignal
  from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
  from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
  import matplotlib.pyplot as plt
  import numpy as np
  
  from pymeteo.cm1.soundings import WK82
  from pymeteo import skewt
  
  # widgets -> skewt wind sounding etc
  
  class PlotWidget(QtWidgets.QFrame):
  
    SStats = pyqtSignal(np.ndarray, np.ndarray, np.ndarray, np.ndarray, np.ndarray, np.ndarray)
  
    def __init__(self, parent=None):
      super(PlotWidget, self).__init__(parent)
      self.initUI()
  
    def initUI(self):
      self.figure = plt.figure()
      self.canvas = FigureCanvas(self.figure)
      self.toolbar = NavigationToolbar(self.canvas, self)
  
      layout = QtWidgets.QVBoxLayout()
      layout.addWidget(self.toolbar)
      layout.addWidget(self.canvas)
      self.setLayout(layout)
  
    def plot_sounding_axes(self):
      self.figure.clear()
      ax = self.figure.add_axes([0.05,0.05,0.90,0.945])
      #ax = self.figure.add_axes([0.005,0.05,0.985,0.945])
      ax.hold(True)
      skewt.set_fontscalefactor(4)
      skewt.plot_sounding_axes(ax)
      self.canvas.draw()
  
    def plot_hodograph_axes(self):
      ax = self.figure.add_axes([0.005,0.005,0.985,0.985])
      ax.hold(True)
      skewt.plot_hodo_axes(ax)
      self.canvas.draw()
  
    def plot_sounding(self, z,th,p,qv,u,v):
      self.figure.clear()
      #ax = self.figure.add_axes([0.005,0.05,0.985,0.945])
      ax = self.figure.add_axes([0.05,0.05,0.90,0.945])
      ax.hold(True)
      skewt.plot_sounding_axes(ax)
      skewt.plot_sounding(z,th,p,qv,u,v,ax)
      self.canvas.draw()
      # Send data to stats widget
      self.SStats.emit(z,th,p,qv,u,v)
  
    def plot_hodograph(self, z,u,v):
      self.figure.clear()
      ax = self.figure.add_axes([0.005,0.05,0.985,0.945])
      ax.hold(True)
      skewt.plot_hodo_axes(ax)
      skewt.plot_hodograph(z,u,v,ax)
      self.canvas.draw()
  
  
new_contents: from PyQt5 import QtWidgets, QtGui, QtCore
  from PyQt5.QtCore import pyqtSignal
  from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as \
      FigureCanvas
  from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as \
      NavigationToolbar
  import matplotlib.pyplot as plt
  import numpy as np
  
  from pymeteo.cm1.soundings import WK82
  from pymeteo import skewt
  
  # widgets -> skewt wind sounding etc
  
  
  class PlotWidget(QtWidgets.QFrame):
  
      SStats = pyqtSignal(np.ndarray, np.ndarray, np.ndarray, np.ndarray,
                          np.ndarray, np.ndarray)
  
      def __init__(self, parent=None):
          super(PlotWidget, self).__init__(parent)
          self.initUI()
  
      def initUI(self):
          self.figure = plt.figure()
          self.canvas = FigureCanvas(self.figure)
          self.toolbar = NavigationToolbar(self.canvas, self)
  
          layout = QtWidgets.QVBoxLayout()
          layout.addWidget(self.toolbar)
          layout.addWidget(self.canvas)
          self.setLayout(layout)
  
      def plot_sounding_axes(self):
          self.figure.clear()
          ax = self.figure.add_axes([0.05, 0.05, 0.90, 0.945])
          # ax = self.figure.add_axes([0.005,0.05,0.985,0.945])
          ax.hold(True)
          skewt.set_fontscalefactor(4)
          skewt.plot_sounding_axes(ax)
          self.canvas.draw()
  
      def plot_hodograph_axes(self):
          ax = self.figure.add_axes([0.005, 0.005, 0.985, 0.985])
          ax.hold(True)
          skewt.plot_hodo_axes(ax)
          self.canvas.draw()
  
      def plot_sounding(self, z, th, p, qv, u, v):
          self.figure.clear()
          # ax = self.figure.add_axes([0.005,0.05,0.985,0.945])
          ax = self.figure.add_axes([0.05, 0.05, 0.90, 0.945])
          ax.hold(True)
          skewt.plot_sounding_axes(ax)
          skewt.plot_sounding(ax, z, th, p, qv, u, v)
          self.canvas.draw()
          # Send data to stats widget
          self.SStats.emit(z, th, p, qv, u, v)
  
      def plot_hodograph(self, z, u, v):
          self.figure.clear()
          ax = self.figure.add_axes([0.005, 0.05, 0.985, 0.945])
          ax.hold(True)
          skewt.plot_hodo_axes(ax)
          skewt.plot_hodograph(ax, z, u, v)
          self.canvas.draw()
  
subject: Update PlotWidget to new skewt function api