Python Code

>>> import matplotlib.pyplot as plt

Runtime Error

Python is not installed as a framework. The Mac OS X backend will not be able to function correctly if Python is not installed as a framework.

Solution

• goto the folder: /Users/admin/.matplotlib
• create a file matplotlibrc with content:

backend: TkAgg

Python Code

>>> import urlparse

Import Error

No module named 'urlparse'

Solution

revise to

>> import urllib.parse

this is caused by the incompatibility that urlparse is for python2 and urllib.parse is for python3

Python Code

>>> def addlist(alist):
            for i in alist:
                yield i + 1
        alist = [1, 2, 3, 4]
        a = addlist(alist)
        a.next()

Attribute Error

‘generator’ object has no attribute ‘next’

Solution

revise to

>>> def addlist(alist):
            for i in alist:
                yield i + 1
        alist = [1, 2, 3, 4]
        a = addlist(alist)
        a.__next__()

this is caused by the incompatibility that next() is for python2 and __next__() is for python3