Error messages from the code: 
plot_potential_extrapolation_of_hmi_data 
===================================================== 
Traceback (most recent call last):

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 3319, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)

  File "<ipython-input-5-2eb3c8accf42>", line 6, in <module>
    from mayavi import mlab # Necessary for visulisation

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\mayavi\mlab.py", line 15, in <module>
    from mayavi.core.common import process_ui_events

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\mayavi\core\common.py", line 16, in <module>
    from apptools.persistence.state_pickler import create_instance

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\apptools\persistence\state_pickler.py", line 1210
    
    ^
SyntaxError: invalid syntax 


Traceback (most recent call last):

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 3319, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)

  File "<ipython-input-6-b1ffe2391b1d>", line 4, in <module>
    from solarbextrapolation.visualisation_functions import visualise

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\solarbextrapolation-0.1.dev163-py3.7.egg\solarbextrapolation\visualisation_functions.py", line 15, in <module>
    from mayavi import mlab

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\mayavi\mlab.py", line 15, in <module>
    from mayavi.core.common import process_ui_events

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\mayavi\core\common.py", line 16, in <module>
    from apptools.persistence.state_pickler import create_instance

  File "C:\Users\Mohamed Nedal\Anaconda3\lib\site-packages\apptools\persistence\state_pickler.py", line 1210
    
    ^
SyntaxError: invalid syntax 


---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-7-1d556b07e6b7> in <module>
      4 # Build the query, this can return one item, or a list of them to DL matching
      5 # the given filters.
----> 6 result_hmi = client.query(
      7     # The following are filters for collecting the desired data.
      8     vso.attrs.Time((2011, 2, 14, 20, 34, 0), (2011, 2, 14, 21, 0, 0)), # Time range.

AttributeError: 'VSOClient' object has no attribute 'query'