Python 3, range().append() returns error: 'range' object has ...
stackoverflow.com › questions › 22437297Mar 16, 2014 · The range object does not have an append method. To fix, convert the range object to a list: >>> myrange = list (range (10,100,10)) >>> myrange.append (200) >>> myrange [10, 20, 30, 40, 50, 60, 70, 80, 90, 200] The range object is an iterator. It purposefully avoids forming a list of all the values since this requires more memory, and often people use range simply to keep track of a counter -- a usage which does not require holding the full list in memory at once.
Python AttributeError Example, AttributeError Raised when ...
www.iditect.com › python_attributeerrorAttributeError: 'module' object has no attribute 'linalg' This happens because the numpy module doesn't have any attribute named linalg. That attribute only gets defined when you import numpy.linalg. Submodules don't automatically get imported when you just import numpy. You need to import them explicitly. The same holds for most packages. If you want to import its submodules automatically while a package imported, you can load them in the __init__.py.