我尝试在IDLE上运行以下example code，它是从matplotlib的官方网站复制的：
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(0, 5, 0.1);
y = np.sin(x)
plt.plot(x, y)但是我有很多错误：
Traceback (most recent call last):
File "D:/temp/pyplot_test.py", line 2, in
import matplotlib.pyplot as plt
File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 23, in
from matplotlib.figure import Figure, figaspect
File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 18, in
from axes import Axes, SubplotBase, subplot_class_factory
File "C:\Python27\lib\site-packages\matplotlib\axes.py", line 14, in
import matplotlib.axis as maxis
File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 12, in
import matplotlib.patches as mpatches
File "C:\Python27\lib\site-packages\matplotlib\patches.py", line 1615, in
class BoxStyle(_Style):
File "C:\Python27\lib\site-packages\matplotlib\patches.py", line 2068, in BoxStyle
{"AvailableBoxstyles": _pprint_styles(_style_list)}
File "C:\Python27\lib\site-packages\matplotlib\patches.py", line 1539, in _pprint_styles
args, varargs, varkw, defaults = inspect.getargspec(cls.__init__)
AttributeError: 'module' object has no attribute 'getargspec'我的电脑是Windows XP机器。使用Python(x,y)干净地安装Python和matplotlib(以及其他站点包，如numpy)。任何想法如何解决这个问题？