小编rit*_*ond的帖子

我有一个包含以下元素和属性的XML文件:

<element>
<unit id="1" color="blue"/>
<unit id="2" color="blue"/>
<unit id="3" color="red"/>
</element>

我如何计算1)每种属性颜色的不同出现次数和2)每次不同事件的计数？

到目前为止,我已经尝试了distinct-values()和count()以及它们的组合,没有运气,以不同属性的数量或它们的数量结束,尽管我想得到两者.

我想得到的结果列表如下所示:

Blue 2
Red 1

我通过Instagram API收集了一些数据,我已将其存储到pandas DataFrame中,后者又通过pandas .to_pickle()方法保存.

尝试使用`read_pickle()'方法在另一台计算机上加载DataFrame时,会返回以下错误:

Traceback (most recent call last):
File "examine.py", line 14, in <module>
dataframe = pd.read_pickle(args["dataframe"])
File "/home/user/virtualenvs/geopandas/local/lib/python2.7/site-packages/pandas/io/pickle.py", line 65, in read_pickle
return try_read(path)
File "/home/user/virtualenvs/geopandas/local/lib/python2.7/site-packages/pandas/io/pickle.py", line 62, in try_read
return pc.load(fh, encoding=encoding, compat=True)
File "/home/user/virtualenvs/geopandas/local/lib/python2.7/site-packages/pandas/compat/pickle_compat.py", line 117, in load
return up.load()
File "/usr/lib/python2.7/pickle.py", line 858, in load
dispatch[key](self)
File "/usr/lib/python2.7/pickle.py", line 1090, in load_global
klass = self.find_class(module, name)
File "/usr/lib/python2.7/pickle.py", line 1124, in find_class
__import__(module)
ImportError: No module named instagram.models

知道是什么原因引起的吗？