API versioning issue with tutorial1.py

[jesselangdon]

My laptop stats:
OS: Windows 7
QGIS: 2.18.2

C:\OSGeo4W\bin\python.exe "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.2.3\helpers\pydev\pydevd.py" --multiproc --qt-support --client 127.0.0.1 --port 50372 --file C:/dev/pyGISExperiments/SFRWeek/tutorial1.py
pydev debugger: process 6192 is connecting

Connected to pydev debugger (build 162.1967.10)
Backend TkAgg is interactive backend. Turning interactive mode on.
RuntimeError: module compiled against API version 0xa but this version of numpy is 0x6
Traceback (most recent call last):
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.2.3\helpers\pydev\pydevd.py", line 1580, in <module>
    globals = debugger.run(setup['file'], None, None, is_module)
  File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 2016.2.3\helpers\pydev\pydevd.py", line 964, in run
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "C:/dev/pyGISExperiments/SFRWeek/tutorial1.py", line 21, in <module>
    array = srcband.ReadAsArray()
  File "C:\OSGeo4W\apps\Python27\Lib\site-packages\osgeo\gdal.py", line 2274, in ReadAsArray
    import gdalnumeric
  File "C:\OSGeo4W\apps\Python27\Lib\site-packages\osgeo\gdalnumeric.py", line 1, in <module>
    from osgeo.gdal_array import *
  File "C:\OSGeo4W\apps\Python27\Lib\site-packages\osgeo\gdal_array.py", line 24, in <module>
    _gdal_array = swig_import_helper()
  File "C:\OSGeo4W\apps\Python27\Lib\site-packages\osgeo\gdal_array.py", line 23, in swig_import_helper
    return _mod
UnboundLocalError: local variable '_mod' referenced before assignment