title: IndexError: too many indices for array: array is 0-dimensional, but 2 were indexed
body: <p>I want to bring in a text file through PyQt5 and draw a graph with data values.</p>
  <pre><code>import sys
  from PyQt5.QtWidgets import QApplication, QMainWindow, QTextEdit, QAction, QFileDialog
  from PyQt5.QtGui import QIcon
  import numpy as np
  import matplotlib.pyplot as plt
  
  class MyApp(QMainWindow):
  
      def __init__(self):
          super().__init__()
          self.initUI()
  
      def initUI(self):
          self.textEdit = QTextEdit()
          self.setCentralWidget(self.textEdit)
          self.statusBar()
  
          openFile = QAction(QIcon('folder.png'), 'Open', self)
          openFile.setShortcut('Ctrl+O')
          openFile.setStatusTip('Text.txt')
          openFile.triggered.connect(self.show)
  
          menubar = self.menuBar()
          menubar.setNativeMenuBar(False)
          fileMenu = menubar.addMenu('&amp;File')
          fileMenu.addAction(openFile)
  
          self.setWindowTitle('File Dialog')
          self.setGeometry(300, 300, 300, 200)
          self.show()
  
      def show(self):
          fname = QFileDialog.getOpenFileName(self, 'Open file', './')
  
          if fname[0]:
              f = open(fname[0], 'r')
  
  
              with f:
                  data = f.read()
                  data2=np.array(data)
                  x=data2[1:,0]
                  y=data2[1:,1]
  
                  plt.plot(x,y)
                  plt.show()
  
   if __name__ == '__main__':
      app = QApplication(sys.argv)
      ex = MyApp()
      sys.exit(app.exec_())
  </code></pre>
  <p><img src="https://i.stack.imgur.com/vqseH.png" alt="enter image description here" /></p>
  <p>Text file photo.</p>
  <p>This is the error that appears:</p>
  <pre><code>x=data2[1:,0]
  IndexError: too many indices for array: array is 0-dimensional, but 2 were indexed
  </code></pre>